projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | |
| 2 | LINUX ALLOCATED DEVICES (2.6+ version) | |
| 3 | ||
| 04c860c1 | 4 | Maintained by Alan Cox <device@lanana.org> |
| 1da177e4 | 5 | |
| e379ec7c | 6 | Last revised: 6th April 2009 |
| 1da177e4 LT |
7 | |
| 8 | This list is the Linux Device List, the official registry of allocated | |
| 9 | device numbers and /dev directory nodes for the Linux operating | |
| 10 | system. | |
| 11 | ||
| 12 | The latest version of this list is available from | |
| 13 | http://www.lanana.org/docs/device-list/ or | |
| 14 | ftp://ftp.kernel.org/pub/linux/docs/device-list/. This version may be | |
| 15 | newer than the one distributed with the Linux kernel. | |
| 16 | ||
| 17 | The LaTeX version of this document is no longer maintained. | |
| 18 | ||
| 19 | This document is included by reference into the Filesystem Hierarchy | |
| 20 | Standard (FHS). The FHS is available from http://www.pathname.com/fhs/. | |
| 21 | ||
| 22 | Allocations marked (68k/Amiga) apply to Linux/68k on the Amiga | |
| 23 | platform only. Allocations marked (68k/Atari) apply to Linux/68k on | |
| 24 | the Atari platform only. | |
| 25 | ||
| 26 | The symbol {2.6} means the allocation is obsolete and scheduled for | |
| 27 | removal once kernel version 2.6 (or equivalent) is released. Some of these | |
| 28 | allocations have already been removed. | |
| 29 | ||
| 30 | This document is in the public domain. The author requests, however, | |
| 31 | that semantically altered versions are not distributed without | |
| 32 | permission of the author, assuming the author can be contacted without | |
| 33 | an unreasonable effort. | |
| 34 | ||
| 35 | In particular, please don't sent patches for this list to Linus, at | |
| 36 | least not without contacting me first. | |
| 37 | ||
| 38 | I do not have any information about these devices beyond what appears | |
| 39 | on this list. Any such information requests will be deleted without | |
| 40 | reply. | |
| 41 | ||
| 42 | ||
| 43 | **** DEVICE DRIVERS AUTHORS PLEASE READ THIS **** | |
| 44 | ||
| 45 | To have a major number allocated, or a minor number in situations | |
| 46 | where that applies (e.g. busmice), please contact me with the | |
| 47 | appropriate device information. Also, if you have additional | |
| 48 | information regarding any of the devices listed below, or if I have | |
| 49 | made a mistake, I would greatly appreciate a note. | |
| 50 | ||
| 51 | I do, however, make a few requests about the nature of your report. | |
| 52 | This is necessary for me to be able to keep this list up to date and | |
| 53 | correct in a timely manner. First of all, *please* send it to the | |
| 54 | correct address... <device@lanana.org>. I receive hundreds of email | |
| 55 | messages a day, so mail sent to other addresses may very well get lost | |
| 56 | in the avalanche. Please put in a descriptive subject, so I can find | |
| 57 | your mail again should I need to. Too many people send me email | |
| 58 | saying just "device number request" in the subject. | |
| 59 | ||
| 60 | Second, please include a description of the device *in the same format | |
| 61 | as this list*. The reason for this is that it is the only way I have | |
| 62 | found to ensure I have all the requisite information to publish your | |
| 63 | device and avoid conflicts. | |
| 64 | ||
| 65 | Third, please don't assume that the distributed version of the list is | |
| 66 | up to date. Due to the number of registrations I have to maintain it | |
| 67 | in "batch mode", so there is likely additional registrations that | |
| 68 | haven't been listed yet. | |
| 69 | ||
| 04c860c1 AC |
70 | Fourth, remember that Linux now has extensive support for dynamic allocation |
| 71 | of device numbering and can use sysfs and udev to handle the naming needs. | |
| 72 | There are still some exceptions in the serial and boot device area. Before | |
| 73 | asking for a device number make sure you actually need one. | |
| 74 | ||
| 1da177e4 LT |
75 | Finally, sometimes I have to play "namespace police." Please don't be |
| 76 | offended. I often get submissions for /dev names that would be bound | |
| 77 | to cause conflicts down the road. I am trying to avoid getting in a | |
| 78 | situation where we would have to suffer an incompatible forward | |
| 79 | change. Therefore, please consult with me *before* you make your | |
| 80 | device names and numbers in any way public, at least to the point | |
| 81 | where it would be at all difficult to get them changed. | |
| 82 | ||
| 83 | Your cooperation is appreciated. | |
| 84 | ||
| 85 | ||
| 86 | 0 Unnamed devices (e.g. non-device mounts) | |
| 87 | 0 = reserved as null device number | |
| 88 | See block major 144, 145, 146 for expansion areas. | |
| 89 | ||
| 90 | 1 char Memory devices | |
| 91 | 1 = /dev/mem Physical memory access | |
| 92 | 2 = /dev/kmem Kernel virtual memory access | |
| 93 | 3 = /dev/null Null device | |
| 94 | 4 = /dev/port I/O port access | |
| 95 | 5 = /dev/zero Null byte source | |
| 96 | 6 = /dev/core OBSOLETE - replaced by /proc/kcore | |
| 97 | 7 = /dev/full Returns ENOSPC on write | |
| 98 | 8 = /dev/random Nondeterministic random number gen. | |
| 99 | 9 = /dev/urandom Faster, less secure random number gen. | |
| 5d3f083d | 100 | 10 = /dev/aio Asynchronous I/O notification interface |
| 3b552b92 KS |
101 | 11 = /dev/kmsg Writes to this come out as printk's, reads |
| 102 | export the buffered printk records. | |
| a11edb59 | 103 | 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore |
| 30aaa5c6 | 104 | |
| 1da177e4 LT |
105 | 1 block RAM disk |
| 106 | 0 = /dev/ram0 First RAM disk | |
| 107 | 1 = /dev/ram1 Second RAM disk | |
| 108 | ... | |
| 04c860c1 | 109 | 250 = /dev/initrd Initial RAM disk |
| 1da177e4 LT |
110 | |
| 111 | Older kernels had /dev/ramdisk (1, 1) here. | |
| 112 | /dev/initrd refers to a RAM disk which was preloaded | |
| 113 | by the boot loader; newer kernels use /dev/ram0 for | |
| 114 | the initrd. | |
| 115 | ||
| 116 | 2 char Pseudo-TTY masters | |
| 117 | 0 = /dev/ptyp0 First PTY master | |
| 118 | 1 = /dev/ptyp1 Second PTY master | |
| 119 | ... | |
| 120 | 255 = /dev/ptyef 256th PTY master | |
| 121 | ||
| 122 | Pseudo-tty's are named as follows: | |
| 123 | * Masters are "pty", slaves are "tty"; | |
| 124 | * the fourth letter is one of pqrstuvwxyzabcde indicating | |
| 125 | the 1st through 16th series of 16 pseudo-ttys each, and | |
| 126 | * the fifth letter is one of 0123456789abcdef indicating | |
| 127 | the position within the series. | |
| 128 | ||
| 129 | These are the old-style (BSD) PTY devices; Unix98 | |
| 130 | devices are on major 128 and above and use the PTY | |
| 131 | master multiplex (/dev/ptmx) to acquire a PTY on | |
| 132 | demand. | |
| 30aaa5c6 | 133 | |
| 1da177e4 LT |
134 | 2 block Floppy disks |
| 135 | 0 = /dev/fd0 Controller 0, drive 0, autodetect | |
| 136 | 1 = /dev/fd1 Controller 0, drive 1, autodetect | |
| 137 | 2 = /dev/fd2 Controller 0, drive 2, autodetect | |
| 138 | 3 = /dev/fd3 Controller 0, drive 3, autodetect | |
| 139 | 128 = /dev/fd4 Controller 1, drive 0, autodetect | |
| 140 | 129 = /dev/fd5 Controller 1, drive 1, autodetect | |
| 141 | 130 = /dev/fd6 Controller 1, drive 2, autodetect | |
| 142 | 131 = /dev/fd7 Controller 1, drive 3, autodetect | |
| 143 | ||
| 144 | To specify format, add to the autodetect device number: | |
| 145 | 0 = /dev/fd? Autodetect format | |
| 146 | 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1) | |
| 147 | 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1) | |
| 148 | 48 = /dev/fd?h410 5.25" 410K in a 1200K drive | |
| 149 | 64 = /dev/fd?h420 5.25" 420K in a 1200K drive | |
| 150 | 24 = /dev/fd?h720 5.25" 720K in a 1200K drive | |
| 151 | 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1) | |
| 152 | 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1) | |
| 153 | 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1) | |
| 154 | 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive | |
| 155 | 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive | |
| 156 | 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1) | |
| 157 | ||
| 158 | 12 = /dev/fd?u360 3.5" 360K Double Density(2) | |
| 159 | 16 = /dev/fd?u720 3.5" 720K Double Density(1) | |
| 160 | 120 = /dev/fd?u800 3.5" 800K Double Density(2) | |
| 161 | 52 = /dev/fd?u820 3.5" 820K Double Density | |
| 162 | 68 = /dev/fd?u830 3.5" 830K Double Density | |
| 163 | 84 = /dev/fd?u1040 3.5" 1040K Double Density(1) | |
| 164 | 88 = /dev/fd?u1120 3.5" 1120K Double Density(1) | |
| 165 | 28 = /dev/fd?u1440 3.5" 1440K High Density(1) | |
| 166 | 124 = /dev/fd?u1600 3.5" 1600K High Density(1) | |
| 167 | 44 = /dev/fd?u1680 3.5" 1680K High Density(3) | |
| 168 | 60 = /dev/fd?u1722 3.5" 1722K High Density | |
| 169 | 76 = /dev/fd?u1743 3.5" 1743K High Density | |
| 170 | 96 = /dev/fd?u1760 3.5" 1760K High Density | |
| 171 | 116 = /dev/fd?u1840 3.5" 1840K High Density(3) | |
| 172 | 100 = /dev/fd?u1920 3.5" 1920K High Density(1) | |
| 173 | 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1) | |
| 174 | 104 = /dev/fd?u3200 3.5" 3200K Extra Density | |
| 175 | 108 = /dev/fd?u3520 3.5" 3520K Extra Density | |
| 176 | 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1) | |
| 177 | ||
| 178 | 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete? | |
| 179 | ||
| 180 | (1) Autodetectable format | |
| 181 | (2) Autodetectable format in a Double Density (720K) drive only | |
| 182 | (3) Autodetectable format in a High Density (1440K) drive only | |
| 183 | ||
| 184 | NOTE: The letter in the device name (d, q, h or u) | |
| 185 | signifies the type of drive: 5.25" Double Density (d), | |
| 186 | 5.25" Quad Density (q), 5.25" High Density (h) or 3.5" | |
| 187 | (any model, u). The use of the capital letters D, H | |
| 188 | and E for the 3.5" models have been deprecated, since | |
| 189 | the drive type is insignificant for these devices. | |
| 190 | ||
| 191 | 3 char Pseudo-TTY slaves | |
| 192 | 0 = /dev/ttyp0 First PTY slave | |
| 193 | 1 = /dev/ttyp1 Second PTY slave | |
| 194 | ... | |
| 195 | 255 = /dev/ttyef 256th PTY slave | |
| 196 | ||
| 197 | These are the old-style (BSD) PTY devices; Unix98 | |
| 198 | devices are on major 136 and above. | |
| 199 | ||
| 200 | 3 block First MFM, RLL and IDE hard disk/CD-ROM interface | |
| 201 | 0 = /dev/hda Master: whole disk (or CD-ROM) | |
| 202 | 64 = /dev/hdb Slave: whole disk (or CD-ROM) | |
| 203 | ||
| 204 | For partitions, add to the whole disk device number: | |
| 205 | 0 = /dev/hd? Whole disk | |
| 206 | 1 = /dev/hd?1 First partition | |
| 207 | 2 = /dev/hd?2 Second partition | |
| 208 | ... | |
| 209 | 63 = /dev/hd?63 63rd partition | |
| 210 | ||
| 211 | For Linux/i386, partitions 1-4 are the primary | |
| 212 | partitions, and 5 and above are logical partitions. | |
| 213 | Other versions of Linux use partitioning schemes | |
| 214 | appropriate to their respective architectures. | |
| 215 | ||
| 216 | 4 char TTY devices | |
| 217 | 0 = /dev/tty0 Current virtual console | |
| 218 | ||
| 219 | 1 = /dev/tty1 First virtual console | |
| 220 | ... | |
| 221 | 63 = /dev/tty63 63rd virtual console | |
| 222 | 64 = /dev/ttyS0 First UART serial port | |
| 223 | ... | |
| 224 | 255 = /dev/ttyS191 192nd UART serial port | |
| 225 | ||
| 226 | UART serial ports refer to 8250/16450/16550 series devices. | |
| 227 | ||
| 228 | Older versions of the Linux kernel used this major | |
| 229 | number for BSD PTY devices. As of Linux 2.1.115, this | |
| 230 | is no longer supported. Use major numbers 2 and 3. | |
| 231 | ||
| 232 | 4 block Aliases for dynamically allocated major devices to be used | |
| 233 | when its not possible to create the real device nodes | |
| 234 | because the root filesystem is mounted read-only. | |
| 235 | ||
| 236 | 0 = /dev/root | |
| 237 | ||
| 238 | 5 char Alternate TTY devices | |
| 239 | 0 = /dev/tty Current TTY device | |
| 240 | 1 = /dev/console System console | |
| 241 | 2 = /dev/ptmx PTY master multiplex | |
| 24b4b67d | 242 | 3 = /dev/ttyprintk User messages via printk TTY device |
| 1da177e4 LT |
243 | 64 = /dev/cua0 Callout device for ttyS0 |
| 244 | ... | |
| 245 | 255 = /dev/cua191 Callout device for ttyS191 | |
| 246 | ||
| 247 | (5,1) is /dev/console starting with Linux 2.1.71. See | |
| 248 | the section on terminal devices for more information | |
| 249 | on /dev/console. | |
| 250 | ||
| 251 | 6 char Parallel printer devices | |
| 252 | 0 = /dev/lp0 Parallel printer on parport0 | |
| 253 | 1 = /dev/lp1 Parallel printer on parport1 | |
| 254 | ... | |
| 255 | ||
| 256 | Current Linux kernels no longer have a fixed mapping | |
| 257 | between parallel ports and I/O addresses. Instead, | |
| 258 | they are redirected through the parport multiplex layer. | |
| 259 | ||
| 260 | 7 char Virtual console capture devices | |
| 261 | 0 = /dev/vcs Current vc text contents | |
| 262 | 1 = /dev/vcs1 tty1 text contents | |
| 263 | ... | |
| 264 | 63 = /dev/vcs63 tty63 text contents | |
| 265 | 128 = /dev/vcsa Current vc text/attribute contents | |
| 266 | 129 = /dev/vcsa1 tty1 text/attribute contents | |
| 267 | ... | |
| 268 | 191 = /dev/vcsa63 tty63 text/attribute contents | |
| 30aaa5c6 | 269 | |
| 1da177e4 LT |
270 | NOTE: These devices permit both read and write access. |
| 271 | ||
| 272 | 7 block Loopback devices | |
| 11420211 JE |
273 | 0 = /dev/loop0 First loop device |
| 274 | 1 = /dev/loop1 Second loop device | |
| 1da177e4 LT |
275 | ... |
| 276 | ||
| 11420211 | 277 | The loop devices are used to mount filesystems not |
| 1da177e4 | 278 | associated with block devices. The binding to the |
| 11420211 | 279 | loop devices is handled by mount(8) or losetup(8). |
| 1da177e4 LT |
280 | |
| 281 | 8 block SCSI disk devices (0-15) | |
| 282 | 0 = /dev/sda First SCSI disk whole disk | |
| 283 | 16 = /dev/sdb Second SCSI disk whole disk | |
| 284 | 32 = /dev/sdc Third SCSI disk whole disk | |
| 285 | ... | |
| 286 | 240 = /dev/sdp Sixteenth SCSI disk whole disk | |
| 287 | ||
| 288 | Partitions are handled in the same way as for IDE | |
| 289 | disks (see major number 3) except that the limit on | |
| 290 | partitions is 15. | |
| 291 | ||
| 292 | 9 char SCSI tape devices | |
| 293 | 0 = /dev/st0 First SCSI tape, mode 0 | |
| 294 | 1 = /dev/st1 Second SCSI tape, mode 0 | |
| 295 | ... | |
| 296 | 32 = /dev/st0l First SCSI tape, mode 1 | |
| 297 | 33 = /dev/st1l Second SCSI tape, mode 1 | |
| 298 | ... | |
| 299 | 64 = /dev/st0m First SCSI tape, mode 2 | |
| 300 | 65 = /dev/st1m Second SCSI tape, mode 2 | |
| 301 | ... | |
| 302 | 96 = /dev/st0a First SCSI tape, mode 3 | |
| 303 | 97 = /dev/st1a Second SCSI tape, mode 3 | |
| 304 | ... | |
| 305 | 128 = /dev/nst0 First SCSI tape, mode 0, no rewind | |
| 306 | 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind | |
| 307 | ... | |
| 308 | 160 = /dev/nst0l First SCSI tape, mode 1, no rewind | |
| 309 | 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind | |
| 310 | ... | |
| 311 | 192 = /dev/nst0m First SCSI tape, mode 2, no rewind | |
| 312 | 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind | |
| 313 | ... | |
| 314 | 224 = /dev/nst0a First SCSI tape, mode 3, no rewind | |
| 315 | 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind | |
| 316 | ... | |
| 317 | ||
| 318 | "No rewind" refers to the omission of the default | |
| 319 | automatic rewind on device close. The MTREW or MTOFFL | |
| 320 | ioctl()'s can be used to rewind the tape regardless of | |
| 321 | the device used to access it. | |
| 322 | ||
| 323 | 9 block Metadisk (RAID) devices | |
| 324 | 0 = /dev/md0 First metadisk group | |
| 325 | 1 = /dev/md1 Second metadisk group | |
| 326 | ... | |
| 327 | ||
| 328 | The metadisk driver is used to span a | |
| 329 | filesystem across multiple physical disks. | |
| 330 | ||
| 331 | 10 char Non-serial mice, misc features | |
| 332 | 0 = /dev/logibm Logitech bus mouse | |
| 333 | 1 = /dev/psaux PS/2-style mouse port | |
| 334 | 2 = /dev/inportbm Microsoft Inport bus mouse | |
| 335 | 3 = /dev/atibm ATI XL bus mouse | |
| 336 | 4 = /dev/jbm J-mouse | |
| 337 | 4 = /dev/amigamouse Amiga mouse (68k/Amiga) | |
| 338 | 5 = /dev/atarimouse Atari mouse | |
| 339 | 6 = /dev/sunmouse Sun mouse | |
| 340 | 7 = /dev/amigamouse1 Second Amiga mouse | |
| 341 | 8 = /dev/smouse Simple serial mouse driver | |
| 342 | 9 = /dev/pc110pad IBM PC-110 digitizer pad | |
| 343 | 10 = /dev/adbmouse Apple Desktop Bus mouse | |
| 344 | 11 = /dev/vrtpanel Vr41xx embedded touch panel | |
| 345 | 13 = /dev/vpcmouse Connectix Virtual PC Mouse | |
| 346 | 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen | |
| 347 | 15 = /dev/touchscreen/mk712 MK712 touchscreen | |
| 348 | 128 = /dev/beep Fancy beep device | |
| 04c860c1 | 349 | 129 = |
| 1da177e4 LT |
350 | 130 = /dev/watchdog Watchdog timer port |
| 351 | 131 = /dev/temperature Machine internal temperature | |
| 352 | 132 = /dev/hwtrap Hardware fault trap | |
| 353 | 133 = /dev/exttrp External device trap | |
| 354 | 134 = /dev/apm_bios Advanced Power Management BIOS | |
| 355 | 135 = /dev/rtc Real Time Clock | |
| b075dd40 | 356 | 137 = /dev/vhci Bluetooth virtual HCI driver |
| 1da177e4 LT |
357 | 139 = /dev/openprom SPARC OpenBoot PROM |
| 358 | 140 = /dev/relay8 Berkshire Products Octal relay card | |
| 359 | 141 = /dev/relay16 Berkshire Products ISO-16 relay card | |
| 04c860c1 | 360 | 142 = |
| 1da177e4 LT |
361 | 143 = /dev/pciconf PCI configuration space |
| 362 | 144 = /dev/nvram Non-volatile configuration RAM | |
| 04c860c1 | 363 | 145 = /dev/hfmodem Soundcard shortwave modem control |
| 1da177e4 LT |
364 | 146 = /dev/graphics Linux/SGI graphics device |
| 365 | 147 = /dev/opengl Linux/SGI OpenGL pipe | |
| 366 | 148 = /dev/gfx Linux/SGI graphics effects device | |
| 367 | 149 = /dev/input/mouse Linux/SGI Irix emulation mouse | |
| 368 | 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard | |
| 369 | 151 = /dev/led Front panel LEDs | |
| 370 | 152 = /dev/kpoll Kernel Poll Driver | |
| 371 | 153 = /dev/mergemem Memory merge device | |
| 372 | 154 = /dev/pmu Macintosh PowerBook power manager | |
| 373 | 155 = /dev/isictl MultiTech ISICom serial control | |
| 374 | 156 = /dev/lcd Front panel LCD display | |
| 375 | 157 = /dev/ac Applicom Intl Profibus card | |
| 376 | 158 = /dev/nwbutton Netwinder external button | |
| 377 | 159 = /dev/nwdebug Netwinder debug interface | |
| 378 | 160 = /dev/nwflash Netwinder flash memory | |
| 379 | 161 = /dev/userdma User-space DMA access | |
| 380 | 162 = /dev/smbus System Management Bus | |
| 381 | 163 = /dev/lik Logitech Internet Keyboard | |
| 382 | 164 = /dev/ipmo Intel Intelligent Platform Management | |
| bc28633e | 383 | 165 = /dev/vmmon VMware virtual machine monitor |
| 1da177e4 LT |
384 | 166 = /dev/i2o/ctl I2O configuration manager |
| 385 | 167 = /dev/specialix_sxctl Specialix serial control | |
| 386 | 168 = /dev/tcldrv Technology Concepts serial control | |
| 387 | 169 = /dev/specialix_rioctl Specialix RIO serial control | |
| 388 | 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices | |
| 389 | 171 = /dev/srripc QNX4 API IPC manager | |
| 390 | 172 = /dev/usemaclone Semaphore clone device | |
| 391 | 173 = /dev/ipmikcs Intelligent Platform Management | |
| 392 | 174 = /dev/uctrl SPARCbook 3 microcontroller | |
| 393 | 175 = /dev/agpgart AGP Graphics Address Remapping Table | |
| 394 | 176 = /dev/gtrsc Gorgy Timing radio clock | |
| 395 | 177 = /dev/cbm Serial CBM bus | |
| 396 | 178 = /dev/jsflash JavaStation OS flash SIMM | |
| 397 | 179 = /dev/xsvc High-speed shared-mem/semaphore service | |
| 398 | 180 = /dev/vrbuttons Vr41xx button input device | |
| 399 | 181 = /dev/toshiba Toshiba laptop SMM support | |
| 400 | 182 = /dev/perfctr Performance-monitoring counters | |
| 401 | 183 = /dev/hwrng Generic random number generator | |
| 402 | 184 = /dev/cpu/microcode CPU microcode update interface | |
| 403 | 186 = /dev/atomicps Atomic shapshot of process state data | |
| 404 | 187 = /dev/irnet IrNET device | |
| 405 | 188 = /dev/smbusbios SMBus BIOS | |
| 406 | 189 = /dev/ussp_ctl User space serial port control | |
| 407 | 190 = /dev/crash Mission Critical Linux crash dump facility | |
| 408 | 191 = /dev/pcl181 <information missing> | |
| 409 | 192 = /dev/nas_xbus NAS xbus LCD/buttons access | |
| 410 | 193 = /dev/d7s SPARC 7-segment display | |
| 411 | 194 = /dev/zkshim Zero-Knowledge network shim control | |
| 412 | 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201 | |
| 8dcf94bc | 413 | 196 = /dev/vfio/vfio VFIO userspace driver interface |
| dd97b241 | 414 | 197 = /dev/pxa3xx-gcu PXA3xx graphics controller unit driver |
| 1da177e4 LT |
415 | 198 = /dev/sexec Signed executable interface |
| 416 | 199 = /dev/scanners/cuecat :CueCat barcode scanner | |
| 417 | 200 = /dev/net/tun TAP/TUN network device | |
| 418 | 201 = /dev/button/gulpb Transmeta GULP-B buttons | |
| 419 | 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control | |
| cb2ffb26 | 420 | 203 = /dev/cuse Cuse (character device in user-space) |
| 1da177e4 LT |
421 | 204 = /dev/video/em8300 EM8300 DVD decoder control |
| 422 | 205 = /dev/video/em8300_mv EM8300 DVD decoder video | |
| 423 | 206 = /dev/video/em8300_ma EM8300 DVD decoder audio | |
| 424 | 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture | |
| 425 | 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller | |
| 426 | 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver | |
| 30aaa5c6 | 427 | 210 = /dev/impi/bt IMPI coprocessor block transfer |
| 1da177e4 LT |
428 | 211 = /dev/impi/smic IMPI coprocessor stream interface |
| 429 | 212 = /dev/watchdogs/0 First watchdog device | |
| 430 | 213 = /dev/watchdogs/1 Second watchdog device | |
| 431 | 214 = /dev/watchdogs/2 Third watchdog device | |
| 432 | 215 = /dev/watchdogs/3 Fourth watchdog device | |
| 433 | 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel | |
| 434 | 217 = /dev/ni/natmotn National Instruments Motion | |
| 435 | 218 = /dev/kchuid Inter-process chuid control | |
| 436 | 219 = /dev/modems/mwave MWave modem firmware upload | |
| 437 | 220 = /dev/mptctl Message passing technology (MPT) control | |
| 438 | 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver | |
| 439 | 222 = /dev/mvista/hasi Montavista PICMG high availability | |
| 440 | 223 = /dev/input/uinput User level driver support for input | |
| 441 | 224 = /dev/tpm TCPA TPM driver | |
| 442 | 225 = /dev/pps Pulse Per Second driver | |
| 443 | 226 = /dev/systrace Systrace device | |
| 444 | 227 = /dev/mcelog X86_64 Machine Check Exception driver | |
| 445 | 228 = /dev/hpet HPET driver | |
| 446 | 229 = /dev/fuse Fuse (virtual filesystem in user-space) | |
| 447 | 230 = /dev/midishare MidiShare driver | |
| 04c860c1 AC |
448 | 231 = /dev/snapshot System memory snapshot device |
| 449 | 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions) | |
| 450 | 233 = /dev/kmview View-OS A process with a view | |
| 578454ff KS |
451 | 234 = /dev/btrfs-control Btrfs control device |
| 452 | 235 = /dev/autofs Autofs control device | |
| 7e507eb6 | 453 | 236 = /dev/mapper/control Device-Mapper control device |
| 7c7c7f01 | 454 | 237 = /dev/loop-control Loopback control device |
| 455 | 238 = /dev/vhost-net Host kernel accelerator for virtio net | |
| dd97b241 | 456 | 239 = /dev/uhid User-space I/O driver support for HID subsystem |
| 7c7c7f01 | 457 | |
| 1da177e4 LT |
458 | 240-254 Reserved for local use |
| 459 | 255 Reserved for MISC_DYNAMIC_MINOR | |
| 460 | ||
| 461 | 11 char Raw keyboard device (Linux/SPARC only) | |
| 462 | 0 = /dev/kbd Raw keyboard device | |
| 463 | ||
| 464 | 11 char Serial Mux device (Linux/PA-RISC only) | |
| 465 | 0 = /dev/ttyB0 First mux port | |
| 466 | 1 = /dev/ttyB1 Second mux port | |
| 467 | ... | |
| 468 | ||
| 469 | 11 block SCSI CD-ROM devices | |
| 470 | 0 = /dev/scd0 First SCSI CD-ROM | |
| 471 | 1 = /dev/scd1 Second SCSI CD-ROM | |
| 472 | ... | |
| 473 | ||
| 474 | The prefix /dev/sr (instead of /dev/scd) has been deprecated. | |
| 475 | ||
| 476 | 12 char QIC-02 tape | |
| 477 | 2 = /dev/ntpqic11 QIC-11, no rewind-on-close | |
| 478 | 3 = /dev/tpqic11 QIC-11, rewind-on-close | |
| 479 | 4 = /dev/ntpqic24 QIC-24, no rewind-on-close | |
| 480 | 5 = /dev/tpqic24 QIC-24, rewind-on-close | |
| 481 | 6 = /dev/ntpqic120 QIC-120, no rewind-on-close | |
| 482 | 7 = /dev/tpqic120 QIC-120, rewind-on-close | |
| 483 | 8 = /dev/ntpqic150 QIC-150, no rewind-on-close | |
| 484 | 9 = /dev/tpqic150 QIC-150, rewind-on-close | |
| 485 | ||
| 486 | The device names specified are proposed -- if there | |
| 487 | are "standard" names for these devices, please let me know. | |
| 488 | ||
| 04c860c1 | 489 | 12 block |
| 1da177e4 LT |
490 | |
| 491 | 13 char Input core | |
| 492 | 0 = /dev/input/js0 First joystick | |
| 493 | 1 = /dev/input/js1 Second joystick | |
| 494 | ... | |
| 495 | 32 = /dev/input/mouse0 First mouse | |
| 496 | 33 = /dev/input/mouse1 Second mouse | |
| 497 | ... | |
| 498 | 63 = /dev/input/mice Unified mouse | |
| 499 | 64 = /dev/input/event0 First event queue | |
| 500 | 65 = /dev/input/event1 Second event queue | |
| 501 | ... | |
| 502 | ||
| 503 | Each device type has 5 bits (32 minors). | |
| 504 | ||
| 1fbeeba3 LW |
505 | 13 block Previously used for the XT disk (/dev/xdN) |
| 506 | Deleted in kernel v3.9. | |
| 1da177e4 LT |
507 | |
| 508 | 14 char Open Sound System (OSS) | |
| 509 | 0 = /dev/mixer Mixer control | |
| 510 | 1 = /dev/sequencer Audio sequencer | |
| 511 | 2 = /dev/midi00 First MIDI port | |
| 512 | 3 = /dev/dsp Digital audio | |
| 513 | 4 = /dev/audio Sun-compatible digital audio | |
| 04c860c1 | 514 | 6 = |
| 1da177e4 LT |
515 | 7 = /dev/audioctl SPARC audio control device |
| 516 | 8 = /dev/sequencer2 Sequencer -- alternate device | |
| 517 | 16 = /dev/mixer1 Second soundcard mixer control | |
| 518 | 17 = /dev/patmgr0 Sequencer patch manager | |
| 519 | 18 = /dev/midi01 Second MIDI port | |
| 520 | 19 = /dev/dsp1 Second soundcard digital audio | |
| 521 | 20 = /dev/audio1 Second soundcard Sun digital audio | |
| 522 | 33 = /dev/patmgr1 Sequencer patch manager | |
| 523 | 34 = /dev/midi02 Third MIDI port | |
| 524 | 50 = /dev/midi03 Fourth MIDI port | |
| 30aaa5c6 | 525 | |
| 04c860c1 | 526 | 14 block |
| 1da177e4 LT |
527 | |
| 528 | 15 char Joystick | |
| 529 | 0 = /dev/js0 First analog joystick | |
| 530 | 1 = /dev/js1 Second analog joystick | |
| 531 | ... | |
| 532 | 128 = /dev/djs0 First digital joystick | |
| 533 | 129 = /dev/djs1 Second digital joystick | |
| 534 | ... | |
| 535 | 15 block Sony CDU-31A/CDU-33A CD-ROM | |
| 536 | 0 = /dev/sonycd Sony CDU-31a CD-ROM | |
| 537 | ||
| 538 | 16 char Non-SCSI scanners | |
| 539 | 0 = /dev/gs4500 Genius 4500 handheld scanner | |
| 30aaa5c6 | 540 | |
| 1da177e4 LT |
541 | 16 block GoldStar CD-ROM |
| 542 | 0 = /dev/gscd GoldStar CD-ROM | |
| 543 | ||
| 04c860c1 | 544 | 17 char OBSOLETE (was Chase serial card) |
| 1da177e4 LT |
545 | 0 = /dev/ttyH0 First Chase port |
| 546 | 1 = /dev/ttyH1 Second Chase port | |
| 547 | ... | |
| 548 | 17 block Optics Storage CD-ROM | |
| 549 | 0 = /dev/optcd Optics Storage CD-ROM | |
| 550 | ||
| 04c860c1 | 551 | 18 char OBSOLETE (was Chase serial card - alternate devices) |
| 1da177e4 LT |
552 | 0 = /dev/cuh0 Callout device for ttyH0 |
| 553 | 1 = /dev/cuh1 Callout device for ttyH1 | |
| 554 | ... | |
| 555 | 18 block Sanyo CD-ROM | |
| 556 | 0 = /dev/sjcd Sanyo CD-ROM | |
| 557 | ||
| 558 | 19 char Cyclades serial card | |
| 559 | 0 = /dev/ttyC0 First Cyclades port | |
| 560 | ... | |
| 561 | 31 = /dev/ttyC31 32nd Cyclades port | |
| 30aaa5c6 | 562 | |
| 1da177e4 LT |
563 | 19 block "Double" compressed disk |
| 564 | 0 = /dev/double0 First compressed disk | |
| 565 | ... | |
| 566 | 7 = /dev/double7 Eighth compressed disk | |
| 567 | 128 = /dev/cdouble0 Mirror of first compressed disk | |
| 568 | ... | |
| 569 | 135 = /dev/cdouble7 Mirror of eighth compressed disk | |
| 570 | ||
| 571 | See the Double documentation for the meaning of the | |
| 572 | mirror devices. | |
| 573 | ||
| 574 | 20 char Cyclades serial card - alternate devices | |
| 575 | 0 = /dev/cub0 Callout device for ttyC0 | |
| 576 | ... | |
| 577 | 31 = /dev/cub31 Callout device for ttyC31 | |
| 30aaa5c6 | 578 | |
| 1da177e4 LT |
579 | 20 block Hitachi CD-ROM (under development) |
| 580 | 0 = /dev/hitcd Hitachi CD-ROM | |
| 581 | ||
| 582 | 21 char Generic SCSI access | |
| 583 | 0 = /dev/sg0 First generic SCSI device | |
| 584 | 1 = /dev/sg1 Second generic SCSI device | |
| 585 | ... | |
| 586 | ||
| 587 | Most distributions name these /dev/sga, /dev/sgb...; | |
| 588 | this sets an unnecessary limit of 26 SCSI devices in | |
| 589 | the system and is counter to standard Linux | |
| 590 | device-naming practice. | |
| 591 | ||
| 592 | 21 block Acorn MFM hard drive interface | |
| 593 | 0 = /dev/mfma First MFM drive whole disk | |
| 594 | 64 = /dev/mfmb Second MFM drive whole disk | |
| 595 | ||
| 596 | This device is used on the ARM-based Acorn RiscPC. | |
| 597 | Partitions are handled the same way as for IDE disks | |
| 30aaa5c6 | 598 | (see major number 3). |
| 1da177e4 LT |
599 | |
| 600 | 22 char Digiboard serial card | |
| 601 | 0 = /dev/ttyD0 First Digiboard port | |
| 602 | 1 = /dev/ttyD1 Second Digiboard port | |
| 603 | ... | |
| 604 | 22 block Second IDE hard disk/CD-ROM interface | |
| 605 | 0 = /dev/hdc Master: whole disk (or CD-ROM) | |
| 606 | 64 = /dev/hdd Slave: whole disk (or CD-ROM) | |
| 30aaa5c6 | 607 | |
| 1da177e4 LT |
608 | Partitions are handled the same way as for the first |
| 609 | interface (see major number 3). | |
| 610 | ||
| 611 | 23 char Digiboard serial card - alternate devices | |
| 612 | 0 = /dev/cud0 Callout device for ttyD0 | |
| 613 | 1 = /dev/cud1 Callout device for ttyD1 | |
| 614 | ... | |
| 615 | 23 block Mitsumi proprietary CD-ROM | |
| 616 | 0 = /dev/mcd Mitsumi CD-ROM | |
| 617 | ||
| 618 | 24 char Stallion serial card | |
| 619 | 0 = /dev/ttyE0 Stallion port 0 card 0 | |
| 620 | 1 = /dev/ttyE1 Stallion port 1 card 0 | |
| 621 | ... | |
| 622 | 64 = /dev/ttyE64 Stallion port 0 card 1 | |
| 623 | 65 = /dev/ttyE65 Stallion port 1 card 1 | |
| 624 | ... | |
| 625 | 128 = /dev/ttyE128 Stallion port 0 card 2 | |
| 626 | 129 = /dev/ttyE129 Stallion port 1 card 2 | |
| 627 | ... | |
| 628 | 192 = /dev/ttyE192 Stallion port 0 card 3 | |
| 629 | 193 = /dev/ttyE193 Stallion port 1 card 3 | |
| 630 | ... | |
| 631 | 24 block Sony CDU-535 CD-ROM | |
| 632 | 0 = /dev/cdu535 Sony CDU-535 CD-ROM | |
| 633 | ||
| 634 | 25 char Stallion serial card - alternate devices | |
| 635 | 0 = /dev/cue0 Callout device for ttyE0 | |
| 636 | 1 = /dev/cue1 Callout device for ttyE1 | |
| 637 | ... | |
| 638 | 64 = /dev/cue64 Callout device for ttyE64 | |
| 639 | 65 = /dev/cue65 Callout device for ttyE65 | |
| 640 | ... | |
| 641 | 128 = /dev/cue128 Callout device for ttyE128 | |
| 642 | 129 = /dev/cue129 Callout device for ttyE129 | |
| 643 | ... | |
| 644 | 192 = /dev/cue192 Callout device for ttyE192 | |
| 645 | 193 = /dev/cue193 Callout device for ttyE193 | |
| 646 | ... | |
| 647 | 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM | |
| 648 | 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0 | |
| 649 | 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1 | |
| 650 | 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2 | |
| 651 | 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3 | |
| 652 | ||
| 04c860c1 | 653 | 26 char |
| 30aaa5c6 | 654 | |
| 1da177e4 LT |
655 | 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM |
| 656 | 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0 | |
| 657 | 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1 | |
| 658 | 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2 | |
| 659 | 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3 | |
| 660 | ||
| 661 | 27 char QIC-117 tape | |
| 662 | 0 = /dev/qft0 Unit 0, rewind-on-close | |
| 663 | 1 = /dev/qft1 Unit 1, rewind-on-close | |
| 664 | 2 = /dev/qft2 Unit 2, rewind-on-close | |
| 665 | 3 = /dev/qft3 Unit 3, rewind-on-close | |
| 666 | 4 = /dev/nqft0 Unit 0, no rewind-on-close | |
| 667 | 5 = /dev/nqft1 Unit 1, no rewind-on-close | |
| 668 | 6 = /dev/nqft2 Unit 2, no rewind-on-close | |
| 669 | 7 = /dev/nqft3 Unit 3, no rewind-on-close | |
| 670 | 16 = /dev/zqft0 Unit 0, rewind-on-close, compression | |
| 671 | 17 = /dev/zqft1 Unit 1, rewind-on-close, compression | |
| 672 | 18 = /dev/zqft2 Unit 2, rewind-on-close, compression | |
| 673 | 19 = /dev/zqft3 Unit 3, rewind-on-close, compression | |
| 674 | 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression | |
| 675 | 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression | |
| 676 | 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression | |
| 677 | 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression | |
| 678 | 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks | |
| 679 | 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks | |
| 680 | 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks | |
| 681 | 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks | |
| 682 | 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks | |
| 683 | 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks | |
| 684 | 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks | |
| 685 | 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks | |
| 30aaa5c6 | 686 | |
| 1da177e4 LT |
687 | 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM |
| 688 | 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0 | |
| 689 | 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1 | |
| 690 | 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2 | |
| 691 | 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3 | |
| 692 | ||
| 693 | 28 char Stallion serial card - card programming | |
| 694 | 0 = /dev/staliomem0 First Stallion card I/O memory | |
| 695 | 1 = /dev/staliomem1 Second Stallion card I/O memory | |
| 696 | 2 = /dev/staliomem2 Third Stallion card I/O memory | |
| 697 | 3 = /dev/staliomem3 Fourth Stallion card I/O memory | |
| 30aaa5c6 | 698 | |
| 1da177e4 LT |
699 | 28 char Atari SLM ACSI laser printer (68k/Atari) |
| 700 | 0 = /dev/slm0 First SLM laser printer | |
| 701 | 1 = /dev/slm1 Second SLM laser printer | |
| 702 | ... | |
| 703 | 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM | |
| 704 | 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0 | |
| 705 | 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1 | |
| 706 | 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2 | |
| 707 | 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3 | |
| 30aaa5c6 | 708 | |
| 1da177e4 LT |
709 | 28 block ACSI disk (68k/Atari) |
| 710 | 0 = /dev/ada First ACSI disk whole disk | |
| 711 | 16 = /dev/adb Second ACSI disk whole disk | |
| 712 | 32 = /dev/adc Third ACSI disk whole disk | |
| 713 | ... | |
| 714 | 240 = /dev/adp 16th ACSI disk whole disk | |
| 715 | ||
| 716 | Partitions are handled in the same way as for IDE | |
| 717 | disks (see major number 3) except that the limit on | |
| 718 | partitions is 15, like SCSI. | |
| 719 | ||
| 720 | 29 char Universal frame buffer | |
| 721 | 0 = /dev/fb0 First frame buffer | |
| 722 | 1 = /dev/fb1 Second frame buffer | |
| 723 | ... | |
| 724 | 31 = /dev/fb31 32nd frame buffer | |
| 725 | ||
| 726 | 29 block Aztech/Orchid/Okano/Wearnes CD-ROM | |
| 727 | 0 = /dev/aztcd Aztech CD-ROM | |
| 728 | ||
| 729 | 30 char iBCS-2 compatibility devices | |
| 730 | 0 = /dev/socksys Socket access | |
| 731 | 1 = /dev/spx SVR3 local X interface | |
| 732 | 32 = /dev/inet/ip Network access | |
| 733 | 33 = /dev/inet/icmp | |
| 734 | 34 = /dev/inet/ggp | |
| 735 | 35 = /dev/inet/ipip | |
| 736 | 36 = /dev/inet/tcp | |
| 737 | 37 = /dev/inet/egp | |
| 738 | 38 = /dev/inet/pup | |
| 739 | 39 = /dev/inet/udp | |
| 740 | 40 = /dev/inet/idp | |
| 741 | 41 = /dev/inet/rawip | |
| 742 | ||
| 743 | Additionally, iBCS-2 requires the following links: | |
| 744 | ||
| 745 | /dev/ip -> /dev/inet/ip | |
| 746 | /dev/icmp -> /dev/inet/icmp | |
| 747 | /dev/ggp -> /dev/inet/ggp | |
| 748 | /dev/ipip -> /dev/inet/ipip | |
| 749 | /dev/tcp -> /dev/inet/tcp | |
| 750 | /dev/egp -> /dev/inet/egp | |
| 751 | /dev/pup -> /dev/inet/pup | |
| 752 | /dev/udp -> /dev/inet/udp | |
| 753 | /dev/idp -> /dev/inet/idp | |
| 754 | /dev/rawip -> /dev/inet/rawip | |
| 755 | /dev/inet/arp -> /dev/inet/udp | |
| 756 | /dev/inet/rip -> /dev/inet/udp | |
| 757 | /dev/nfsd -> /dev/socksys | |
| 758 | /dev/X0R -> /dev/null (? apparently not required ?) | |
| 759 | ||
| 760 | 30 block Philips LMS CM-205 CD-ROM | |
| 761 | 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM | |
| 762 | ||
| 763 | /dev/lmscd is an older name for this device. This | |
| 764 | driver does not work with the CM-205MS CD-ROM. | |
| 765 | ||
| 766 | 31 char MPU-401 MIDI | |
| 767 | 0 = /dev/mpu401data MPU-401 data port | |
| 768 | 1 = /dev/mpu401stat MPU-401 status port | |
| 30aaa5c6 | 769 | |
| 1da177e4 LT |
770 | 31 block ROM/flash memory card |
| 771 | 0 = /dev/rom0 First ROM card (rw) | |
| 772 | ... | |
| 773 | 7 = /dev/rom7 Eighth ROM card (rw) | |
| 774 | 8 = /dev/rrom0 First ROM card (ro) | |
| 775 | ... | |
| 776 | 15 = /dev/rrom7 Eighth ROM card (ro) | |
| 777 | 16 = /dev/flash0 First flash memory card (rw) | |
| 778 | ... | |
| 779 | 23 = /dev/flash7 Eighth flash memory card (rw) | |
| 780 | 24 = /dev/rflash0 First flash memory card (ro) | |
| 781 | ... | |
| 782 | 31 = /dev/rflash7 Eighth flash memory card (ro) | |
| 783 | ||
| 784 | The read-write (rw) devices support back-caching | |
| 785 | written data in RAM, as well as writing to flash RAM | |
| 786 | devices. The read-only devices (ro) support reading | |
| 787 | only. | |
| 788 | ||
| 789 | 32 char Specialix serial card | |
| 790 | 0 = /dev/ttyX0 First Specialix port | |
| 791 | 1 = /dev/ttyX1 Second Specialix port | |
| 792 | ... | |
| 793 | 32 block Philips LMS CM-206 CD-ROM | |
| 794 | 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM | |
| 795 | ||
| 796 | 33 char Specialix serial card - alternate devices | |
| 797 | 0 = /dev/cux0 Callout device for ttyX0 | |
| 798 | 1 = /dev/cux1 Callout device for ttyX1 | |
| 799 | ... | |
| 800 | 33 block Third IDE hard disk/CD-ROM interface | |
| 801 | 0 = /dev/hde Master: whole disk (or CD-ROM) | |
| 802 | 64 = /dev/hdf Slave: whole disk (or CD-ROM) | |
| 803 | ||
| 804 | Partitions are handled the same way as for the first | |
| 805 | interface (see major number 3). | |
| 806 | ||
| 807 | 34 char Z8530 HDLC driver | |
| 808 | 0 = /dev/scc0 First Z8530, first port | |
| 809 | 1 = /dev/scc1 First Z8530, second port | |
| 810 | 2 = /dev/scc2 Second Z8530, first port | |
| 811 | 3 = /dev/scc3 Second Z8530, second port | |
| 812 | ... | |
| 813 | ||
| 814 | In a previous version these devices were named | |
| 815 | /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so | |
| 816 | on. | |
| 817 | ||
| 818 | 34 block Fourth IDE hard disk/CD-ROM interface | |
| 819 | 0 = /dev/hdg Master: whole disk (or CD-ROM) | |
| 820 | 64 = /dev/hdh Slave: whole disk (or CD-ROM) | |
| 30aaa5c6 | 821 | |
| 1da177e4 LT |
822 | Partitions are handled the same way as for the first |
| 823 | interface (see major number 3). | |
| 824 | ||
| 825 | 35 char tclmidi MIDI driver | |
| 826 | 0 = /dev/midi0 First MIDI port, kernel timed | |
| 827 | 1 = /dev/midi1 Second MIDI port, kernel timed | |
| 828 | 2 = /dev/midi2 Third MIDI port, kernel timed | |
| 829 | 3 = /dev/midi3 Fourth MIDI port, kernel timed | |
| 830 | 64 = /dev/rmidi0 First MIDI port, untimed | |
| 831 | 65 = /dev/rmidi1 Second MIDI port, untimed | |
| 832 | 66 = /dev/rmidi2 Third MIDI port, untimed | |
| 833 | 67 = /dev/rmidi3 Fourth MIDI port, untimed | |
| 834 | 128 = /dev/smpte0 First MIDI port, SMPTE timed | |
| 835 | 129 = /dev/smpte1 Second MIDI port, SMPTE timed | |
| 836 | 130 = /dev/smpte2 Third MIDI port, SMPTE timed | |
| 837 | 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed | |
| 30aaa5c6 | 838 | |
| 1da177e4 LT |
839 | 35 block Slow memory ramdisk |
| 840 | 0 = /dev/slram Slow memory ramdisk | |
| 841 | ||
| 842 | 36 char Netlink support | |
| 843 | 0 = /dev/route Routing, device updates, kernel to user | |
| 844 | 1 = /dev/skip enSKIP security cache control | |
| 845 | 3 = /dev/fwmonitor Firewall packet copies | |
| 846 | 16 = /dev/tap0 First Ethertap device | |
| 847 | ... | |
| 848 | 31 = /dev/tap15 16th Ethertap device | |
| 30aaa5c6 | 849 | |
| bb8187d3 | 850 | 36 block OBSOLETE (was MCA ESDI hard disk) |
| 1da177e4 LT |
851 | |
| 852 | 37 char IDE tape | |
| 853 | 0 = /dev/ht0 First IDE tape | |
| 854 | 1 = /dev/ht1 Second IDE tape | |
| 855 | ... | |
| 856 | 128 = /dev/nht0 First IDE tape, no rewind-on-close | |
| 857 | 129 = /dev/nht1 Second IDE tape, no rewind-on-close | |
| 858 | ... | |
| 859 | ||
| 860 | Currently, only one IDE tape drive is supported. | |
| 861 | ||
| 862 | 37 block Zorro II ramdisk | |
| 863 | 0 = /dev/z2ram Zorro II ramdisk | |
| 864 | ||
| 865 | 38 char Myricom PCI Myrinet board | |
| 866 | 0 = /dev/mlanai0 First Myrinet board | |
| 867 | 1 = /dev/mlanai1 Second Myrinet board | |
| 868 | ... | |
| 869 | ||
| 870 | This device is used for status query, board control | |
| 871 | and "user level packet I/O." This board is also | |
| 872 | accessible as a standard networking "eth" device. | |
| 873 | ||
| 04c860c1 | 874 | 38 block OBSOLETE (was Linux/AP+) |
| 1da177e4 LT |
875 | |
| 876 | 39 char ML-16P experimental I/O board | |
| 877 | 0 = /dev/ml16pa-a0 First card, first analog channel | |
| 878 | 1 = /dev/ml16pa-a1 First card, second analog channel | |
| 879 | ... | |
| 880 | 15 = /dev/ml16pa-a15 First card, 16th analog channel | |
| 881 | 16 = /dev/ml16pa-d First card, digital lines | |
| 882 | 17 = /dev/ml16pa-c0 First card, first counter/timer | |
| 883 | 18 = /dev/ml16pa-c1 First card, second counter/timer | |
| 884 | 19 = /dev/ml16pa-c2 First card, third counter/timer | |
| 885 | 32 = /dev/ml16pb-a0 Second card, first analog channel | |
| 886 | 33 = /dev/ml16pb-a1 Second card, second analog channel | |
| 887 | ... | |
| 888 | 47 = /dev/ml16pb-a15 Second card, 16th analog channel | |
| 889 | 48 = /dev/ml16pb-d Second card, digital lines | |
| 890 | 49 = /dev/ml16pb-c0 Second card, first counter/timer | |
| 891 | 50 = /dev/ml16pb-c1 Second card, second counter/timer | |
| 892 | 51 = /dev/ml16pb-c2 Second card, third counter/timer | |
| 893 | ... | |
| 04c860c1 | 894 | 39 block |
| 1da177e4 | 895 | |
| 04c860c1 | 896 | 40 char |
| 30aaa5c6 | 897 | |
| 04c860c1 | 898 | 40 block |
| 1da177e4 LT |
899 | |
| 900 | 41 char Yet Another Micro Monitor | |
| 901 | 0 = /dev/yamm Yet Another Micro Monitor | |
| 30aaa5c6 | 902 | |
| 04c860c1 | 903 | 41 block |
| 1da177e4 LT |
904 | |
| 905 | 42 char Demo/sample use | |
| 30aaa5c6 | 906 | |
| 1da177e4 LT |
907 | 42 block Demo/sample use |
| 908 | ||
| 909 | This number is intended for use in sample code, as | |
| 910 | well as a general "example" device number. It | |
| 911 | should never be used for a device driver that is being | |
| 912 | distributed; either obtain an official number or use | |
| 913 | the local/experimental range. The sudden addition or | |
| 914 | removal of a driver with this number should not cause | |
| 915 | ill effects to the system (bugs excepted.) | |
| 916 | ||
| 917 | IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A | |
| 918 | DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT. | |
| 919 | ||
| 920 | 43 char isdn4linux virtual modem | |
| 921 | 0 = /dev/ttyI0 First virtual modem | |
| 922 | ... | |
| 923 | 63 = /dev/ttyI63 64th virtual modem | |
| 30aaa5c6 | 924 | |
| 1da177e4 LT |
925 | 43 block Network block devices |
| 926 | 0 = /dev/nb0 First network block device | |
| 927 | 1 = /dev/nb1 Second network block device | |
| 928 | ... | |
| 929 | ||
| 930 | Network Block Device is somehow similar to loopback | |
| 931 | devices: If you read from it, it sends packet across | |
| 932 | network asking server for data. If you write to it, it | |
| 933 | sends packet telling server to write. It could be used | |
| 934 | to mounting filesystems over the net, swapping over | |
| 935 | the net, implementing block device in userland etc. | |
| 936 | ||
| 937 | 44 char isdn4linux virtual modem - alternate devices | |
| 938 | 0 = /dev/cui0 Callout device for ttyI0 | |
| 939 | ... | |
| 940 | 63 = /dev/cui63 Callout device for ttyI63 | |
| 30aaa5c6 | 941 | |
| 1da177e4 LT |
942 | 44 block Flash Translation Layer (FTL) filesystems |
| 943 | 0 = /dev/ftla FTL on first Memory Technology Device | |
| 944 | 16 = /dev/ftlb FTL on second Memory Technology Device | |
| 945 | 32 = /dev/ftlc FTL on third Memory Technology Device | |
| 946 | ... | |
| 30aaa5c6 | 947 | 240 = /dev/ftlp FTL on 16th Memory Technology Device |
| 1da177e4 LT |
948 | |
| 949 | Partitions are handled in the same way as for IDE | |
| 11420211 | 950 | disks (see major number 3) except that the partition |
| 1da177e4 LT |
951 | limit is 15 rather than 63 per disk (same as SCSI.) |
| 952 | ||
| 953 | 45 char isdn4linux ISDN BRI driver | |
| 954 | 0 = /dev/isdn0 First virtual B channel raw data | |
| 955 | ... | |
| 956 | 63 = /dev/isdn63 64th virtual B channel raw data | |
| 957 | 64 = /dev/isdnctrl0 First channel control/debug | |
| 958 | ... | |
| 959 | 127 = /dev/isdnctrl63 64th channel control/debug | |
| 960 | ||
| 961 | 128 = /dev/ippp0 First SyncPPP device | |
| 962 | ... | |
| 963 | 191 = /dev/ippp63 64th SyncPPP device | |
| 964 | ||
| 965 | 255 = /dev/isdninfo ISDN monitor interface | |
| 30aaa5c6 | 966 | |
| 1da177e4 LT |
967 | 45 block Parallel port IDE disk devices |
| 968 | 0 = /dev/pda First parallel port IDE disk | |
| 969 | 16 = /dev/pdb Second parallel port IDE disk | |
| 970 | 32 = /dev/pdc Third parallel port IDE disk | |
| 971 | 48 = /dev/pdd Fourth parallel port IDE disk | |
| 972 | ||
| 973 | Partitions are handled in the same way as for IDE | |
| 974 | disks (see major number 3) except that the partition | |
| 975 | limit is 15 rather than 63 per disk. | |
| 976 | ||
| 977 | 46 char Comtrol Rocketport serial card | |
| 978 | 0 = /dev/ttyR0 First Rocketport port | |
| 979 | 1 = /dev/ttyR1 Second Rocketport port | |
| 980 | ... | |
| 981 | 46 block Parallel port ATAPI CD-ROM devices | |
| 982 | 0 = /dev/pcd0 First parallel port ATAPI CD-ROM | |
| 983 | 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM | |
| 984 | 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM | |
| 985 | 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM | |
| 986 | ||
| 987 | 47 char Comtrol Rocketport serial card - alternate devices | |
| 988 | 0 = /dev/cur0 Callout device for ttyR0 | |
| 989 | 1 = /dev/cur1 Callout device for ttyR1 | |
| 990 | ... | |
| 991 | 47 block Parallel port ATAPI disk devices | |
| 992 | 0 = /dev/pf0 First parallel port ATAPI disk | |
| 993 | 1 = /dev/pf1 Second parallel port ATAPI disk | |
| 994 | 2 = /dev/pf2 Third parallel port ATAPI disk | |
| 995 | 3 = /dev/pf3 Fourth parallel port ATAPI disk | |
| 996 | ||
| 997 | This driver is intended for floppy disks and similar | |
| 998 | devices and hence does not support partitioning. | |
| 999 | ||
| 1000 | 48 char SDL RISCom serial card | |
| 1001 | 0 = /dev/ttyL0 First RISCom port | |
| 1002 | 1 = /dev/ttyL1 Second RISCom port | |
| 1003 | ... | |
| 1004 | 48 block Mylex DAC960 PCI RAID controller; first controller | |
| 1005 | 0 = /dev/rd/c0d0 First disk, whole disk | |
| 1006 | 8 = /dev/rd/c0d1 Second disk, whole disk | |
| 1007 | ... | |
| 1008 | 248 = /dev/rd/c0d31 32nd disk, whole disk | |
| 1009 | ||
| 1010 | For partitions add: | |
| 1011 | 0 = /dev/rd/c?d? Whole disk | |
| 1012 | 1 = /dev/rd/c?d?p1 First partition | |
| 1013 | ... | |
| 1014 | 7 = /dev/rd/c?d?p7 Seventh partition | |
| 1015 | ||
| 1016 | 49 char SDL RISCom serial card - alternate devices | |
| 1017 | 0 = /dev/cul0 Callout device for ttyL0 | |
| 1018 | 1 = /dev/cul1 Callout device for ttyL1 | |
| 1019 | ... | |
| 1020 | 49 block Mylex DAC960 PCI RAID controller; second controller | |
| 1021 | 0 = /dev/rd/c1d0 First disk, whole disk | |
| 1022 | 8 = /dev/rd/c1d1 Second disk, whole disk | |
| 1023 | ... | |
| 1024 | 248 = /dev/rd/c1d31 32nd disk, whole disk | |
| 1025 | ||
| 1026 | Partitions are handled as for major 48. | |
| 1027 | ||
| 1028 | 50 char Reserved for GLINT | |
| 1029 | ||
| 1030 | 50 block Mylex DAC960 PCI RAID controller; third controller | |
| 1031 | 0 = /dev/rd/c2d0 First disk, whole disk | |
| 1032 | 8 = /dev/rd/c2d1 Second disk, whole disk | |
| 1033 | ... | |
| 1034 | 248 = /dev/rd/c2d31 32nd disk, whole disk | |
| 1035 | ||
| 1036 | 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem | |
| 1037 | 0 = /dev/bc0 First Baycom radio modem | |
| 1038 | 1 = /dev/bc1 Second Baycom radio modem | |
| 1039 | ... | |
| 1040 | 51 block Mylex DAC960 PCI RAID controller; fourth controller | |
| 1041 | 0 = /dev/rd/c3d0 First disk, whole disk | |
| 1042 | 8 = /dev/rd/c3d1 Second disk, whole disk | |
| 1043 | ... | |
| 1044 | 248 = /dev/rd/c3d31 32nd disk, whole disk | |
| 1045 | ||
| 1046 | Partitions are handled as for major 48. | |
| 1047 | ||
| 1048 | 52 char Spellcaster DataComm/BRI ISDN card | |
| 1049 | 0 = /dev/dcbri0 First DataComm card | |
| 1050 | 1 = /dev/dcbri1 Second DataComm card | |
| 1051 | 2 = /dev/dcbri2 Third DataComm card | |
| 1052 | 3 = /dev/dcbri3 Fourth DataComm card | |
| 30aaa5c6 | 1053 | |
| 1da177e4 LT |
1054 | 52 block Mylex DAC960 PCI RAID controller; fifth controller |
| 1055 | 0 = /dev/rd/c4d0 First disk, whole disk | |
| 1056 | 8 = /dev/rd/c4d1 Second disk, whole disk | |
| 1057 | ... | |
| 1058 | 248 = /dev/rd/c4d31 32nd disk, whole disk | |
| 1059 | ||
| 1060 | Partitions are handled as for major 48. | |
| 1061 | ||
| 1062 | 53 char BDM interface for remote debugging MC683xx microcontrollers | |
| 1063 | 0 = /dev/pd_bdm0 PD BDM interface on lp0 | |
| 1064 | 1 = /dev/pd_bdm1 PD BDM interface on lp1 | |
| 1065 | 2 = /dev/pd_bdm2 PD BDM interface on lp2 | |
| 1066 | 4 = /dev/icd_bdm0 ICD BDM interface on lp0 | |
| 1067 | 5 = /dev/icd_bdm1 ICD BDM interface on lp1 | |
| 1068 | 6 = /dev/icd_bdm2 ICD BDM interface on lp2 | |
| 1069 | ||
| 1070 | This device is used for the interfacing to the MC683xx | |
| 1071 | microcontrollers via Background Debug Mode by use of a | |
| 1072 | Parallel Port interface. PD is the Motorola Public | |
| 1073 | Domain Interface and ICD is the commercial interface | |
| 1074 | by P&E. | |
| 1075 | ||
| 1076 | 53 block Mylex DAC960 PCI RAID controller; sixth controller | |
| 1077 | 0 = /dev/rd/c5d0 First disk, whole disk | |
| 1078 | 8 = /dev/rd/c5d1 Second disk, whole disk | |
| 1079 | ... | |
| 1080 | 248 = /dev/rd/c5d31 32nd disk, whole disk | |
| 1081 | ||
| 1082 | Partitions are handled as for major 48. | |
| 1083 | ||
| 1084 | 54 char Electrocardiognosis Holter serial card | |
| 1085 | 0 = /dev/holter0 First Holter port | |
| 1086 | 1 = /dev/holter1 Second Holter port | |
| 1087 | 2 = /dev/holter2 Third Holter port | |
| 1088 | ||
| 1089 | A custom serial card used by Electrocardiognosis SRL | |
| 1090 | <mseritan@ottonel.pub.ro> to transfer data from Holter | |
| 1091 | 24-hour heart monitoring equipment. | |
| 1092 | ||
| 1093 | 54 block Mylex DAC960 PCI RAID controller; seventh controller | |
| 1094 | 0 = /dev/rd/c6d0 First disk, whole disk | |
| 1095 | 8 = /dev/rd/c6d1 Second disk, whole disk | |
| 1096 | ... | |
| 1097 | 248 = /dev/rd/c6d31 32nd disk, whole disk | |
| 1098 | ||
| 1099 | Partitions are handled as for major 48. | |
| 1100 | ||
| 1101 | 55 char DSP56001 digital signal processor | |
| 1102 | 0 = /dev/dsp56k First DSP56001 | |
| 30aaa5c6 | 1103 | |
| 5d3f083d | 1104 | 55 block Mylex DAC960 PCI RAID controller; eighth controller |
| 1da177e4 LT |
1105 | 0 = /dev/rd/c7d0 First disk, whole disk |
| 1106 | 8 = /dev/rd/c7d1 Second disk, whole disk | |
| 1107 | ... | |
| 1108 | 248 = /dev/rd/c7d31 32nd disk, whole disk | |
| 1109 | ||
| 1110 | Partitions are handled as for major 48. | |
| 1111 | ||
| 1112 | 56 char Apple Desktop Bus | |
| 1113 | 0 = /dev/adb ADB bus control | |
| 1114 | ||
| 1115 | Additional devices will be added to this number, all | |
| 1116 | starting with /dev/adb. | |
| 1117 | ||
| 1118 | 56 block Fifth IDE hard disk/CD-ROM interface | |
| 1119 | 0 = /dev/hdi Master: whole disk (or CD-ROM) | |
| 1120 | 64 = /dev/hdj Slave: whole disk (or CD-ROM) | |
| 1121 | ||
| 1122 | Partitions are handled the same way as for the first | |
| 1123 | interface (see major number 3). | |
| 1124 | ||
| 1125 | 57 char Hayes ESP serial card | |
| 1126 | 0 = /dev/ttyP0 First ESP port | |
| 1127 | 1 = /dev/ttyP1 Second ESP port | |
| 1128 | ... | |
| 1129 | ||
| 1130 | 57 block Sixth IDE hard disk/CD-ROM interface | |
| 1131 | 0 = /dev/hdk Master: whole disk (or CD-ROM) | |
| 1132 | 64 = /dev/hdl Slave: whole disk (or CD-ROM) | |
| 1133 | ||
| 1134 | Partitions are handled the same way as for the first | |
| 1135 | interface (see major number 3). | |
| 1136 | ||
| 1137 | 58 char Hayes ESP serial card - alternate devices | |
| 1138 | 0 = /dev/cup0 Callout device for ttyP0 | |
| 1139 | 1 = /dev/cup1 Callout device for ttyP1 | |
| 1140 | ... | |
| 30aaa5c6 | 1141 | |
| 1da177e4 LT |
1142 | 58 block Reserved for logical volume manager |
| 1143 | ||
| 1144 | 59 char sf firewall package | |
| 1145 | 0 = /dev/firewall Communication with sf kernel module | |
| 1146 | ||
| 1147 | 59 block Generic PDA filesystem device | |
| 1148 | 0 = /dev/pda0 First PDA device | |
| 1149 | 1 = /dev/pda1 Second PDA device | |
| 1150 | ... | |
| 1151 | ||
| 1152 | The pda devices are used to mount filesystems on | |
| 1153 | remote pda's (basically slow handheld machines with | |
| 1154 | proprietary OS's and limited memory and storage | |
| 1155 | running small fs translation drivers) through serial / | |
| 1156 | IRDA / parallel links. | |
| 1157 | ||
| 1158 | NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc | |
| 1159 | ||
| 1160 | 60-63 char LOCAL/EXPERIMENTAL USE | |
| 30aaa5c6 | 1161 | |
| 1da177e4 LT |
1162 | 60-63 block LOCAL/EXPERIMENTAL USE |
| 1163 | Allocated for local/experimental use. For devices not | |
| 1164 | assigned official numbers, these ranges should be | |
| 1165 | used in order to avoid conflicting with future assignments. | |
| 1166 | ||
| 1167 | 64 char ENskip kernel encryption package | |
| 1168 | 0 = /dev/enskip Communication with ENskip kernel module | |
| 1169 | ||
| 1170 | 64 block Scramdisk/DriveCrypt encrypted devices | |
| 1171 | 0 = /dev/scramdisk/master Master node for ioctls | |
| 1172 | 1 = /dev/scramdisk/1 First encrypted device | |
| 1173 | 2 = /dev/scramdisk/2 Second encrypted device | |
| 1174 | ... | |
| 1175 | 255 = /dev/scramdisk/255 255th encrypted device | |
| 1176 | ||
| 1177 | The filename of the encrypted container and the passwords | |
| 1178 | are sent via ioctls (using the sdmount tool) to the master | |
| 1179 | node which then activates them via one of the | |
| 11420211 | 1180 | /dev/scramdisk/x nodes for loop mounting (all handled |
| 1da177e4 LT |
1181 | through the sdmount tool). |
| 1182 | ||
| 1183 | Requested by: andy@scramdisklinux.org | |
| 1184 | ||
| 1185 | 65 char Sundance "plink" Transputer boards (obsolete, unused) | |
| 1186 | 0 = /dev/plink0 First plink device | |
| 1187 | 1 = /dev/plink1 Second plink device | |
| 1188 | 2 = /dev/plink2 Third plink device | |
| 1189 | 3 = /dev/plink3 Fourth plink device | |
| 1190 | 64 = /dev/rplink0 First plink device, raw | |
| 1191 | 65 = /dev/rplink1 Second plink device, raw | |
| 1192 | 66 = /dev/rplink2 Third plink device, raw | |
| 1193 | 67 = /dev/rplink3 Fourth plink device, raw | |
| 1194 | 128 = /dev/plink0d First plink device, debug | |
| 1195 | 129 = /dev/plink1d Second plink device, debug | |
| 1196 | 130 = /dev/plink2d Third plink device, debug | |
| 1197 | 131 = /dev/plink3d Fourth plink device, debug | |
| 1198 | 192 = /dev/rplink0d First plink device, raw, debug | |
| 1199 | 193 = /dev/rplink1d Second plink device, raw, debug | |
| 1200 | 194 = /dev/rplink2d Third plink device, raw, debug | |
| 1201 | 195 = /dev/rplink3d Fourth plink device, raw, debug | |
| 1202 | ||
| 1203 | This is a commercial driver; contact James Howes | |
| 1204 | <jth@prosig.demon.co.uk> for information. | |
| 1205 | ||
| 1206 | 65 block SCSI disk devices (16-31) | |
| 1207 | 0 = /dev/sdq 17th SCSI disk whole disk | |
| 1208 | 16 = /dev/sdr 18th SCSI disk whole disk | |
| 1209 | 32 = /dev/sds 19th SCSI disk whole disk | |
| 1210 | ... | |
| 1211 | 240 = /dev/sdaf 32nd SCSI disk whole disk | |
| 1212 | ||
| 1213 | Partitions are handled in the same way as for IDE | |
| 1214 | disks (see major number 3) except that the limit on | |
| 1215 | partitions is 15. | |
| 1216 | ||
| 1217 | 66 char YARC PowerPC PCI coprocessor card | |
| 1218 | 0 = /dev/yppcpci0 First YARC card | |
| 1219 | 1 = /dev/yppcpci1 Second YARC card | |
| 1220 | ... | |
| 1221 | ||
| 1222 | 66 block SCSI disk devices (32-47) | |
| 1223 | 0 = /dev/sdag 33th SCSI disk whole disk | |
| 1224 | 16 = /dev/sdah 34th SCSI disk whole disk | |
| 1225 | 32 = /dev/sdai 35th SCSI disk whole disk | |
| 1226 | ... | |
| 1227 | 240 = /dev/sdav 48nd SCSI disk whole disk | |
| 1228 | ||
| 1229 | Partitions are handled in the same way as for IDE | |
| 1230 | disks (see major number 3) except that the limit on | |
| 1231 | partitions is 15. | |
| 1232 | ||
| 1233 | 67 char Coda network file system | |
| 1234 | 0 = /dev/cfs0 Coda cache manager | |
| 1235 | ||
| 1236 | See http://www.coda.cs.cmu.edu for information about Coda. | |
| 1237 | ||
| 1238 | 67 block SCSI disk devices (48-63) | |
| 1239 | 0 = /dev/sdaw 49th SCSI disk whole disk | |
| 1240 | 16 = /dev/sdax 50th SCSI disk whole disk | |
| 1241 | 32 = /dev/sday 51st SCSI disk whole disk | |
| 1242 | ... | |
| 1243 | 240 = /dev/sdbl 64th SCSI disk whole disk | |
| 1244 | ||
| 1245 | Partitions are handled in the same way as for IDE | |
| 1246 | disks (see major number 3) except that the limit on | |
| 1247 | partitions is 15. | |
| 1248 | ||
| 1249 | 68 char CAPI 2.0 interface | |
| 1250 | 0 = /dev/capi20 Control device | |
| 1251 | 1 = /dev/capi20.00 First CAPI 2.0 application | |
| 1252 | 2 = /dev/capi20.01 Second CAPI 2.0 application | |
| 1253 | ... | |
| 1254 | 20 = /dev/capi20.19 19th CAPI 2.0 application | |
| 1255 | ||
| 1256 | ISDN CAPI 2.0 driver for use with CAPI 2.0 | |
| 1257 | applications; currently supports the AVM B1 card. | |
| 1258 | ||
| 1259 | 68 block SCSI disk devices (64-79) | |
| 1260 | 0 = /dev/sdbm 65th SCSI disk whole disk | |
| 1261 | 16 = /dev/sdbn 66th SCSI disk whole disk | |
| 1262 | 32 = /dev/sdbo 67th SCSI disk whole disk | |
| 1263 | ... | |
| 1264 | 240 = /dev/sdcb 80th SCSI disk whole disk | |
| 1265 | ||
| 1266 | Partitions are handled in the same way as for IDE | |
| 1267 | disks (see major number 3) except that the limit on | |
| 1268 | partitions is 15. | |
| 1269 | ||
| 1270 | 69 char MA16 numeric accelerator card | |
| 1271 | 0 = /dev/ma16 Board memory access | |
| 1272 | ||
| 1273 | 69 block SCSI disk devices (80-95) | |
| 1274 | 0 = /dev/sdcc 81st SCSI disk whole disk | |
| 1275 | 16 = /dev/sdcd 82nd SCSI disk whole disk | |
| 1276 | 32 = /dev/sdce 83th SCSI disk whole disk | |
| 1277 | ... | |
| 1278 | 240 = /dev/sdcr 96th SCSI disk whole disk | |
| 1279 | ||
| 1280 | Partitions are handled in the same way as for IDE | |
| 1281 | disks (see major number 3) except that the limit on | |
| 1282 | partitions is 15. | |
| 1283 | ||
| 1284 | 70 char SpellCaster Protocol Services Interface | |
| 1285 | 0 = /dev/apscfg Configuration interface | |
| 1286 | 1 = /dev/apsauth Authentication interface | |
| 1287 | 2 = /dev/apslog Logging interface | |
| 1288 | 3 = /dev/apsdbg Debugging interface | |
| 1289 | 64 = /dev/apsisdn ISDN command interface | |
| 1290 | 65 = /dev/apsasync Async command interface | |
| 1291 | 128 = /dev/apsmon Monitor interface | |
| 1292 | ||
| 1293 | 70 block SCSI disk devices (96-111) | |
| 1294 | 0 = /dev/sdcs 97th SCSI disk whole disk | |
| 1295 | 16 = /dev/sdct 98th SCSI disk whole disk | |
| 1296 | 32 = /dev/sdcu 99th SCSI disk whole disk | |
| 1297 | ... | |
| 1298 | 240 = /dev/sddh 112nd SCSI disk whole disk | |
| 1299 | ||
| 1300 | Partitions are handled in the same way as for IDE | |
| 1301 | disks (see major number 3) except that the limit on | |
| 1302 | partitions is 15. | |
| 1303 | ||
| 1304 | 71 char Computone IntelliPort II serial card | |
| 1305 | 0 = /dev/ttyF0 IntelliPort II board 0, port 0 | |
| 1306 | 1 = /dev/ttyF1 IntelliPort II board 0, port 1 | |
| 1307 | ... | |
| 1308 | 63 = /dev/ttyF63 IntelliPort II board 0, port 63 | |
| 1309 | 64 = /dev/ttyF64 IntelliPort II board 1, port 0 | |
| 1310 | 65 = /dev/ttyF65 IntelliPort II board 1, port 1 | |
| 1311 | ... | |
| 1312 | 127 = /dev/ttyF127 IntelliPort II board 1, port 63 | |
| 1313 | 128 = /dev/ttyF128 IntelliPort II board 2, port 0 | |
| 1314 | 129 = /dev/ttyF129 IntelliPort II board 2, port 1 | |
| 1315 | ... | |
| 1316 | 191 = /dev/ttyF191 IntelliPort II board 2, port 63 | |
| 1317 | 192 = /dev/ttyF192 IntelliPort II board 3, port 0 | |
| 1318 | 193 = /dev/ttyF193 IntelliPort II board 3, port 1 | |
| 1319 | ... | |
| 1320 | 255 = /dev/ttyF255 IntelliPort II board 3, port 63 | |
| 1321 | ||
| 1322 | 71 block SCSI disk devices (112-127) | |
| 1323 | 0 = /dev/sddi 113th SCSI disk whole disk | |
| 1324 | 16 = /dev/sddj 114th SCSI disk whole disk | |
| 1325 | 32 = /dev/sddk 115th SCSI disk whole disk | |
| 1326 | ... | |
| 1327 | 240 = /dev/sddx 128th SCSI disk whole disk | |
| 1328 | ||
| 1329 | Partitions are handled in the same way as for IDE | |
| 1330 | disks (see major number 3) except that the limit on | |
| 1331 | partitions is 15. | |
| 1332 | ||
| 1333 | 72 char Computone IntelliPort II serial card - alternate devices | |
| 1334 | 0 = /dev/cuf0 Callout device for ttyF0 | |
| 1335 | 1 = /dev/cuf1 Callout device for ttyF1 | |
| 1336 | ... | |
| 1337 | 63 = /dev/cuf63 Callout device for ttyF63 | |
| 1338 | 64 = /dev/cuf64 Callout device for ttyF64 | |
| 1339 | 65 = /dev/cuf65 Callout device for ttyF65 | |
| 1340 | ... | |
| 1341 | 127 = /dev/cuf127 Callout device for ttyF127 | |
| 1342 | 128 = /dev/cuf128 Callout device for ttyF128 | |
| 1343 | 129 = /dev/cuf129 Callout device for ttyF129 | |
| 1344 | ... | |
| 1345 | 191 = /dev/cuf191 Callout device for ttyF191 | |
| 1346 | 192 = /dev/cuf192 Callout device for ttyF192 | |
| 1347 | 193 = /dev/cuf193 Callout device for ttyF193 | |
| 1348 | ... | |
| 1349 | 255 = /dev/cuf255 Callout device for ttyF255 | |
| 1350 | ||
| 1351 | 72 block Compaq Intelligent Drive Array, first controller | |
| 1352 | 0 = /dev/ida/c0d0 First logical drive whole disk | |
| 1353 | 16 = /dev/ida/c0d1 Second logical drive whole disk | |
| 1354 | ... | |
| 1355 | 240 = /dev/ida/c0d15 16th logical drive whole disk | |
| 1356 | ||
| 1357 | Partitions are handled the same way as for Mylex | |
| 1358 | DAC960 (see major number 48) except that the limit on | |
| 1359 | partitions is 15. | |
| 1360 | ||
| 1361 | 73 char Computone IntelliPort II serial card - control devices | |
| 1362 | 0 = /dev/ip2ipl0 Loadware device for board 0 | |
| 1363 | 1 = /dev/ip2stat0 Status device for board 0 | |
| 1364 | 4 = /dev/ip2ipl1 Loadware device for board 1 | |
| 1365 | 5 = /dev/ip2stat1 Status device for board 1 | |
| 1366 | 8 = /dev/ip2ipl2 Loadware device for board 2 | |
| 1367 | 9 = /dev/ip2stat2 Status device for board 2 | |
| 1368 | 12 = /dev/ip2ipl3 Loadware device for board 3 | |
| 1369 | 13 = /dev/ip2stat3 Status device for board 3 | |
| 1370 | ||
| 1371 | 73 block Compaq Intelligent Drive Array, second controller | |
| 1372 | 0 = /dev/ida/c1d0 First logical drive whole disk | |
| 1373 | 16 = /dev/ida/c1d1 Second logical drive whole disk | |
| 1374 | ... | |
| 1375 | 240 = /dev/ida/c1d15 16th logical drive whole disk | |
| 1376 | ||
| 1377 | Partitions are handled the same way as for Mylex | |
| 1378 | DAC960 (see major number 48) except that the limit on | |
| 1379 | partitions is 15. | |
| 1380 | ||
| 1381 | 74 char SCI bridge | |
| 1382 | 0 = /dev/SCI/0 SCI device 0 | |
| 1383 | 1 = /dev/SCI/1 SCI device 1 | |
| 1384 | ... | |
| 1385 | ||
| 1386 | Currently for Dolphin Interconnect Solutions' PCI-SCI | |
| 1387 | bridge. | |
| 1388 | ||
| 1389 | 74 block Compaq Intelligent Drive Array, third controller | |
| 1390 | 0 = /dev/ida/c2d0 First logical drive whole disk | |
| 1391 | 16 = /dev/ida/c2d1 Second logical drive whole disk | |
| 1392 | ... | |
| 1393 | 240 = /dev/ida/c2d15 16th logical drive whole disk | |
| 1394 | ||
| 1395 | Partitions are handled the same way as for Mylex | |
| 1396 | DAC960 (see major number 48) except that the limit on | |
| 1397 | partitions is 15. | |
| 1398 | ||
| 1399 | 75 char Specialix IO8+ serial card | |
| 1400 | 0 = /dev/ttyW0 First IO8+ port, first card | |
| 1401 | 1 = /dev/ttyW1 Second IO8+ port, first card | |
| 1402 | ... | |
| 1403 | 8 = /dev/ttyW8 First IO8+ port, second card | |
| 1404 | ... | |
| 1405 | ||
| 1406 | 75 block Compaq Intelligent Drive Array, fourth controller | |
| 1407 | 0 = /dev/ida/c3d0 First logical drive whole disk | |
| 1408 | 16 = /dev/ida/c3d1 Second logical drive whole disk | |
| 1409 | ... | |
| 1410 | 240 = /dev/ida/c3d15 16th logical drive whole disk | |
| 1411 | ||
| 1412 | Partitions are handled the same way as for Mylex | |
| 1413 | DAC960 (see major number 48) except that the limit on | |
| 1414 | partitions is 15. | |
| 1415 | ||
| 1416 | 76 char Specialix IO8+ serial card - alternate devices | |
| 1417 | 0 = /dev/cuw0 Callout device for ttyW0 | |
| 1418 | 1 = /dev/cuw1 Callout device for ttyW1 | |
| 1419 | ... | |
| 1420 | 8 = /dev/cuw8 Callout device for ttyW8 | |
| 1421 | ... | |
| 1422 | ||
| 1423 | 76 block Compaq Intelligent Drive Array, fifth controller | |
| 1424 | 0 = /dev/ida/c4d0 First logical drive whole disk | |
| 1425 | 16 = /dev/ida/c4d1 Second logical drive whole disk | |
| 1426 | ... | |
| 1427 | 240 = /dev/ida/c4d15 16th logical drive whole disk | |
| 1428 | ||
| 1429 | Partitions are handled the same way as for Mylex | |
| 1430 | DAC960 (see major number 48) except that the limit on | |
| 1431 | partitions is 15. | |
| 1432 | ||
| 1433 | ||
| 1434 | 77 char ComScire Quantum Noise Generator | |
| 1435 | 0 = /dev/qng ComScire Quantum Noise Generator | |
| 1436 | ||
| 1437 | 77 block Compaq Intelligent Drive Array, sixth controller | |
| 1438 | 0 = /dev/ida/c5d0 First logical drive whole disk | |
| 1439 | 16 = /dev/ida/c5d1 Second logical drive whole disk | |
| 1440 | ... | |
| 1441 | 240 = /dev/ida/c5d15 16th logical drive whole disk | |
| 1442 | ||
| 1443 | Partitions are handled the same way as for Mylex | |
| 1444 | DAC960 (see major number 48) except that the limit on | |
| 1445 | partitions is 15. | |
| 1446 | ||
| 1da177e4 LT |
1447 | 78 char PAM Software's multimodem boards |
| 1448 | 0 = /dev/ttyM0 First PAM modem | |
| 1449 | 1 = /dev/ttyM1 Second PAM modem | |
| 1450 | ... | |
| 1451 | ||
| 1452 | 78 block Compaq Intelligent Drive Array, seventh controller | |
| 1453 | 0 = /dev/ida/c6d0 First logical drive whole disk | |
| 1454 | 16 = /dev/ida/c6d1 Second logical drive whole disk | |
| 1455 | ... | |
| 1456 | 240 = /dev/ida/c6d15 16th logical drive whole disk | |
| 1457 | ||
| 1458 | Partitions are handled the same way as for Mylex | |
| 1459 | DAC960 (see major number 48) except that the limit on | |
| 1460 | partitions is 15. | |
| 1461 | ||
| 1da177e4 LT |
1462 | 79 char PAM Software's multimodem boards - alternate devices |
| 1463 | 0 = /dev/cum0 Callout device for ttyM0 | |
| 1464 | 1 = /dev/cum1 Callout device for ttyM1 | |
| 1465 | ... | |
| 1466 | ||
| 5d3f083d | 1467 | 79 block Compaq Intelligent Drive Array, eighth controller |
| 1da177e4 LT |
1468 | 0 = /dev/ida/c7d0 First logical drive whole disk |
| 1469 | 16 = /dev/ida/c7d1 Second logical drive whole disk | |
| 1470 | ... | |
| 1471 | 240 = /dev/ida/c715 16th logical drive whole disk | |
| 1472 | ||
| 1473 | Partitions are handled the same way as for Mylex | |
| 1474 | DAC960 (see major number 48) except that the limit on | |
| 1475 | partitions is 15. | |
| 1476 | ||
| 1da177e4 LT |
1477 | 80 char Photometrics AT200 CCD camera |
| 1478 | 0 = /dev/at200 Photometrics AT200 CCD camera | |
| 1479 | ||
| 1480 | 80 block I2O hard disk | |
| 1481 | 0 = /dev/i2o/hda First I2O hard disk, whole disk | |
| 1482 | 16 = /dev/i2o/hdb Second I2O hard disk, whole disk | |
| 1483 | ... | |
| 1484 | 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk | |
| 1485 | ||
| 1486 | Partitions are handled in the same way as for IDE | |
| 1487 | disks (see major number 3) except that the limit on | |
| 1488 | partitions is 15. | |
| 1489 | ||
| 1490 | 81 char video4linux | |
| 1491 | 0 = /dev/video0 Video capture/overlay device | |
| 1492 | ... | |
| 1493 | 63 = /dev/video63 Video capture/overlay device | |
| 1494 | 64 = /dev/radio0 Radio device | |
| 1495 | ... | |
| 1496 | 127 = /dev/radio63 Radio device | |
| 5121288d AP |
1497 | 128 = /dev/swradio0 Software Defined Radio device |
| 1498 | ... | |
| 1499 | 191 = /dev/swradio63 Software Defined Radio device | |
| 1da177e4 LT |
1500 | 224 = /dev/vbi0 Vertical blank interrupt |
| 1501 | ... | |
| 1502 | 255 = /dev/vbi31 Vertical blank interrupt | |
| 1503 | ||
| 5121288d AP |
1504 | Minor numbers are allocated dynamically unless |
| 1505 | CONFIG_VIDEO_FIXED_MINOR_RANGES (default n) | |
| 1506 | configuration option is set. | |
| 1507 | ||
| 1da177e4 LT |
1508 | 81 block I2O hard disk |
| 1509 | 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk | |
| 1510 | 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk | |
| 1511 | ... | |
| 1512 | 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk | |
| 1513 | ||
| 1514 | Partitions are handled in the same way as for IDE | |
| 1515 | disks (see major number 3) except that the limit on | |
| 1516 | partitions is 15. | |
| 1517 | ||
| 1518 | 82 char WiNRADiO communications receiver card | |
| 1519 | 0 = /dev/winradio0 First WiNRADiO card | |
| 1520 | 1 = /dev/winradio1 Second WiNRADiO card | |
| 1521 | ... | |
| 1522 | ||
| 1523 | The driver and documentation may be obtained from | |
| 0ea6e611 | 1524 | http://www.winradio.com/ |
| 1da177e4 LT |
1525 | |
| 1526 | 82 block I2O hard disk | |
| 1527 | 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk | |
| 1528 | 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk | |
| 1529 | ... | |
| 1530 | 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk | |
| 1531 | ||
| 1532 | Partitions are handled in the same way as for IDE | |
| 1533 | disks (see major number 3) except that the limit on | |
| 1534 | partitions is 15. | |
| 1535 | ||
| 1536 | 83 char Matrox mga_vid video driver | |
| 1537 | 0 = /dev/mga_vid0 1st video card | |
| 1538 | 1 = /dev/mga_vid1 2nd video card | |
| 1539 | 2 = /dev/mga_vid2 3rd video card | |
| 1540 | ... | |
| 1541 | 15 = /dev/mga_vid15 16th video card | |
| 1542 | ||
| 1543 | 83 block I2O hard disk | |
| 1544 | 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk | |
| 1545 | 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk | |
| 1546 | ... | |
| 1547 | 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk | |
| 1548 | ||
| 1549 | Partitions are handled in the same way as for IDE | |
| 1550 | disks (see major number 3) except that the limit on | |
| 1551 | partitions is 15. | |
| 1552 | ||
| 1553 | 84 char Ikon 1011[57] Versatec Greensheet Interface | |
| 1554 | 0 = /dev/ihcp0 First Greensheet port | |
| 1555 | 1 = /dev/ihcp1 Second Greensheet port | |
| 1556 | ||
| 1557 | 84 block I2O hard disk | |
| 1558 | 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk | |
| 1559 | 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk | |
| 1560 | ... | |
| 1561 | 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk | |
| 1562 | ||
| 1563 | Partitions are handled in the same way as for IDE | |
| 1564 | disks (see major number 3) except that the limit on | |
| 1565 | partitions is 15. | |
| 1566 | ||
| 1567 | 85 char Linux/SGI shared memory input queue | |
| 1568 | 0 = /dev/shmiq Master shared input queue | |
| 1569 | 1 = /dev/qcntl0 First device pushed | |
| 1570 | 2 = /dev/qcntl1 Second device pushed | |
| 1571 | ... | |
| 1572 | ||
| 1573 | 85 block I2O hard disk | |
| 1574 | 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk | |
| 1575 | 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk | |
| 1576 | ... | |
| 1577 | 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk | |
| 1578 | ||
| 1579 | Partitions are handled in the same way as for IDE | |
| 1580 | disks (see major number 3) except that the limit on | |
| 1581 | partitions is 15. | |
| 1582 | ||
| 1583 | 86 char SCSI media changer | |
| 1584 | 0 = /dev/sch0 First SCSI media changer | |
| 1585 | 1 = /dev/sch1 Second SCSI media changer | |
| 1586 | ... | |
| 1587 | ||
| 1588 | 86 block I2O hard disk | |
| 1589 | 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk | |
| 1590 | 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk | |
| 1591 | ... | |
| 1592 | 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk | |
| 1593 | ||
| 1594 | Partitions are handled in the same way as for IDE | |
| 1595 | disks (see major number 3) except that the limit on | |
| 1596 | partitions is 15. | |
| 1597 | ||
| 1598 | 87 char Sony Control-A1 stereo control bus | |
| 1599 | 0 = /dev/controla0 First device on chain | |
| 1600 | 1 = /dev/controla1 Second device on chain | |
| 1601 | ... | |
| 1602 | ||
| 1603 | 87 block I2O hard disk | |
| 1604 | 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk | |
| 1605 | 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk | |
| 1606 | ... | |
| 1607 | 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk | |
| 1608 | ||
| 1609 | Partitions are handled in the same way as for IDE | |
| 1610 | disks (see major number 3) except that the limit on | |
| 1611 | partitions is 15. | |
| 1612 | ||
| 1613 | 88 char COMX synchronous serial card | |
| 1614 | 0 = /dev/comx0 COMX channel 0 | |
| 1615 | 1 = /dev/comx1 COMX channel 1 | |
| 1616 | ... | |
| 1617 | ||
| 1618 | 88 block Seventh IDE hard disk/CD-ROM interface | |
| 1619 | 0 = /dev/hdm Master: whole disk (or CD-ROM) | |
| 1620 | 64 = /dev/hdn Slave: whole disk (or CD-ROM) | |
| 1621 | ||
| 1622 | Partitions are handled the same way as for the first | |
| 1623 | interface (see major number 3). | |
| 1624 | ||
| 1625 | 89 char I2C bus interface | |
| 1626 | 0 = /dev/i2c-0 First I2C adapter | |
| 1627 | 1 = /dev/i2c-1 Second I2C adapter | |
| 1628 | ... | |
| 1629 | ||
| 1630 | 89 block Eighth IDE hard disk/CD-ROM interface | |
| 1631 | 0 = /dev/hdo Master: whole disk (or CD-ROM) | |
| 1632 | 64 = /dev/hdp Slave: whole disk (or CD-ROM) | |
| 1633 | ||
| 1634 | Partitions are handled the same way as for the first | |
| 1635 | interface (see major number 3). | |
| 1636 | ||
| 1637 | 90 char Memory Technology Device (RAM, ROM, Flash) | |
| 1638 | 0 = /dev/mtd0 First MTD (rw) | |
| 1639 | 1 = /dev/mtdr0 First MTD (ro) | |
| 1640 | ... | |
| 1641 | 30 = /dev/mtd15 16th MTD (rw) | |
| 1642 | 31 = /dev/mtdr15 16th MTD (ro) | |
| 1643 | ||
| 1644 | 90 block Ninth IDE hard disk/CD-ROM interface | |
| 1645 | 0 = /dev/hdq Master: whole disk (or CD-ROM) | |
| 1646 | 64 = /dev/hdr Slave: whole disk (or CD-ROM) | |
| 1647 | ||
| 1648 | Partitions are handled the same way as for the first | |
| 1649 | interface (see major number 3). | |
| 1650 | ||
| 1651 | 91 char CAN-Bus devices | |
| 1652 | 0 = /dev/can0 First CAN-Bus controller | |
| 1653 | 1 = /dev/can1 Second CAN-Bus controller | |
| 1654 | ... | |
| 1655 | ||
| 1656 | 91 block Tenth IDE hard disk/CD-ROM interface | |
| 1657 | 0 = /dev/hds Master: whole disk (or CD-ROM) | |
| 1658 | 64 = /dev/hdt Slave: whole disk (or CD-ROM) | |
| 1659 | ||
| 1660 | Partitions are handled the same way as for the first | |
| 1661 | interface (see major number 3). | |
| 1662 | ||
| 1663 | 92 char Reserved for ith Kommunikationstechnik MIC ISDN card | |
| 1664 | ||
| 1665 | 92 block PPDD encrypted disk driver | |
| 1666 | 0 = /dev/ppdd0 First encrypted disk | |
| 1667 | 1 = /dev/ppdd1 Second encrypted disk | |
| 1668 | ... | |
| 1669 | ||
| 1670 | Partitions are handled in the same way as for IDE | |
| 1671 | disks (see major number 3) except that the limit on | |
| 1672 | partitions is 15. | |
| 1673 | ||
| 04c860c1 | 1674 | 93 char |
| 1da177e4 LT |
1675 | |
| 1676 | 93 block NAND Flash Translation Layer filesystem | |
| 1677 | 0 = /dev/nftla First NFTL layer | |
| 1678 | 16 = /dev/nftlb Second NFTL layer | |
| 1679 | ... | |
| 1680 | 240 = /dev/nftlp 16th NTFL layer | |
| 1681 | ||
| 04c860c1 | 1682 | 94 char |
| 1da177e4 | 1683 | |
| 30aaa5c6 | 1684 | 94 block IBM S/390 DASD block storage |
| 1da177e4 LT |
1685 | 0 = /dev/dasda First DASD device, major |
| 1686 | 1 = /dev/dasda1 First DASD device, block 1 | |
| 1687 | 2 = /dev/dasda2 First DASD device, block 2 | |
| 1688 | 3 = /dev/dasda3 First DASD device, block 3 | |
| 1689 | 4 = /dev/dasdb Second DASD device, major | |
| 1690 | 5 = /dev/dasdb1 Second DASD device, block 1 | |
| 1691 | 6 = /dev/dasdb2 Second DASD device, block 2 | |
| 1692 | 7 = /dev/dasdb3 Second DASD device, block 3 | |
| 1693 | ... | |
| 1694 | ||
| 1695 | 95 char IP filter | |
| 1696 | 0 = /dev/ipl Filter control device/log file | |
| 1697 | 1 = /dev/ipnat NAT control device/log file | |
| 1698 | 2 = /dev/ipstate State information log file | |
| 1699 | 3 = /dev/ipauth Authentication control device/log file | |
| 30aaa5c6 | 1700 | ... |
| 1da177e4 LT |
1701 | |
| 1702 | 96 char Parallel port ATAPI tape devices | |
| 1703 | 0 = /dev/pt0 First parallel port ATAPI tape | |
| 1704 | 1 = /dev/pt1 Second parallel port ATAPI tape | |
| 1705 | ... | |
| 1706 | 128 = /dev/npt0 First p.p. ATAPI tape, no rewind | |
| 1707 | 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind | |
| 1708 | ... | |
| 1709 | ||
| 30aaa5c6 | 1710 | 96 block Inverse NAND Flash Translation Layer |
| 1da177e4 LT |
1711 | 0 = /dev/inftla First INFTL layer |
| 1712 | 16 = /dev/inftlb Second INFTL layer | |
| 1713 | ... | |
| 1714 | 240 = /dev/inftlp 16th INTFL layer | |
| 1715 | ||
| 1716 | 97 char Parallel port generic ATAPI interface | |
| 1717 | 0 = /dev/pg0 First parallel port ATAPI device | |
| 1718 | 1 = /dev/pg1 Second parallel port ATAPI device | |
| 1719 | 2 = /dev/pg2 Third parallel port ATAPI device | |
| 1720 | 3 = /dev/pg3 Fourth parallel port ATAPI device | |
| 1721 | ||
| 1722 | These devices support the same API as the generic SCSI | |
| 1723 | devices. | |
| 1724 | ||
| 1da177e4 LT |
1725 | 98 char Control and Measurement Device (comedi) |
| 1726 | 0 = /dev/comedi0 First comedi device | |
| 1727 | 1 = /dev/comedi1 Second comedi device | |
| 1728 | ... | |
| 1729 | ||
| 0ea6e611 | 1730 | See http://stm.lbl.gov/comedi. |
| 1da177e4 LT |
1731 | |
| 1732 | 98 block User-mode virtual block device | |
| 1733 | 0 = /dev/ubda First user-mode block device | |
| 1734 | 16 = /dev/udbb Second user-mode block device | |
| 1735 | ... | |
| 1736 | ||
| 1737 | Partitions are handled in the same way as for IDE | |
| 1738 | disks (see major number 3) except that the limit on | |
| 1739 | partitions is 15. | |
| 1740 | ||
| 1741 | This device is used by the user-mode virtual kernel port. | |
| 1742 | ||
| 1743 | 99 char Raw parallel ports | |
| 1744 | 0 = /dev/parport0 First parallel port | |
| 1745 | 1 = /dev/parport1 Second parallel port | |
| 1746 | ... | |
| 1747 | ||
| 1748 | 99 block JavaStation flash disk | |
| 1749 | 0 = /dev/jsfd JavaStation flash disk | |
| 1750 | ||
| 1751 | 100 char Telephony for Linux | |
| 1752 | 0 = /dev/phone0 First telephony device | |
| 1753 | 1 = /dev/phone1 Second telephony device | |
| 1754 | ... | |
| 1755 | ||
| 1756 | 101 char Motorola DSP 56xxx board | |
| 1757 | 0 = /dev/mdspstat Status information | |
| 1758 | 1 = /dev/mdsp1 First DSP board I/O controls | |
| 1759 | ... | |
| 1760 | 16 = /dev/mdsp16 16th DSP board I/O controls | |
| 1761 | ||
| 1762 | 101 block AMI HyperDisk RAID controller | |
| 1763 | 0 = /dev/amiraid/ar0 First array whole disk | |
| 1764 | 16 = /dev/amiraid/ar1 Second array whole disk | |
| 1765 | ... | |
| 1766 | 240 = /dev/amiraid/ar15 16th array whole disk | |
| 1767 | ||
| 1768 | For each device, partitions are added as: | |
| 1769 | 0 = /dev/amiraid/ar? Whole disk | |
| 1770 | 1 = /dev/amiraid/ar?p1 First partition | |
| 1771 | 2 = /dev/amiraid/ar?p2 Second partition | |
| 1772 | ... | |
| 1773 | 15 = /dev/amiraid/ar?p15 15th partition | |
| 1774 | ||
| 04c860c1 | 1775 | 102 char |
| 1da177e4 LT |
1776 | |
| 1777 | 102 block Compressed block device | |
| 1778 | 0 = /dev/cbd/a First compressed block device, whole device | |
| 1779 | 16 = /dev/cbd/b Second compressed block device, whole device | |
| 1780 | ... | |
| 1781 | 240 = /dev/cbd/p 16th compressed block device, whole device | |
| 1782 | ||
| 1783 | Partitions are handled in the same way as for IDE | |
| 1784 | disks (see major number 3) except that the limit on | |
| 1785 | partitions is 15. | |
| 1786 | ||
| 1787 | 103 char Arla network file system | |
| 1788 | 0 = /dev/nnpfs0 First NNPFS device | |
| 1789 | 1 = /dev/nnpfs1 Second NNPFS device | |
| 1790 | ||
| 1791 | Arla is a free clone of the Andrew File System, AFS. | |
| 1792 | The NNPFS device gives user mode filesystem | |
| 1793 | implementations a kernel presence for caching and easy | |
| 1794 | mounting. For more information about the project, | |
| 1795 | write to <arla-drinkers@stacken.kth.se> or see | |
| 1796 | http://www.stacken.kth.se/project/arla/ | |
| 1797 | ||
| 1798 | 103 block Audit device | |
| 1799 | 0 = /dev/audit Audit device | |
| 1800 | ||
| 1801 | 104 char Flash BIOS support | |
| 1802 | ||
| 1803 | 104 block Compaq Next Generation Drive Array, first controller | |
| 1804 | 0 = /dev/cciss/c0d0 First logical drive, whole disk | |
| 1805 | 16 = /dev/cciss/c0d1 Second logical drive, whole disk | |
| 1806 | ... | |
| 1807 | 240 = /dev/cciss/c0d15 16th logical drive, whole disk | |
| 1808 | ||
| 1809 | Partitions are handled the same way as for Mylex | |
| 1810 | DAC960 (see major number 48) except that the limit on | |
| 1811 | partitions is 15. | |
| 1812 | ||
| 1813 | 105 char Comtrol VS-1000 serial controller | |
| 1814 | 0 = /dev/ttyV0 First VS-1000 port | |
| 1815 | 1 = /dev/ttyV1 Second VS-1000 port | |
| 1816 | ... | |
| 1817 | ||
| 1818 | 105 block Compaq Next Generation Drive Array, second controller | |
| 1819 | 0 = /dev/cciss/c1d0 First logical drive, whole disk | |
| 1820 | 16 = /dev/cciss/c1d1 Second logical drive, whole disk | |
| 1821 | ... | |
| 1822 | 240 = /dev/cciss/c1d15 16th logical drive, whole disk | |
| 1823 | ||
| 1824 | Partitions are handled the same way as for Mylex | |
| 1825 | DAC960 (see major number 48) except that the limit on | |
| 1826 | partitions is 15. | |
| 1827 | ||
| 1828 | 106 char Comtrol VS-1000 serial controller - alternate devices | |
| 1829 | 0 = /dev/cuv0 First VS-1000 port | |
| 1830 | 1 = /dev/cuv1 Second VS-1000 port | |
| 1831 | ... | |
| 1832 | ||
| 1833 | 106 block Compaq Next Generation Drive Array, third controller | |
| 1834 | 0 = /dev/cciss/c2d0 First logical drive, whole disk | |
| 1835 | 16 = /dev/cciss/c2d1 Second logical drive, whole disk | |
| 1836 | ... | |
| 1837 | 240 = /dev/cciss/c2d15 16th logical drive, whole disk | |
| 1838 | ||
| 1839 | Partitions are handled the same way as for Mylex | |
| 1840 | DAC960 (see major number 48) except that the limit on | |
| 1841 | partitions is 15. | |
| 1842 | ||
| 1843 | 107 char 3Dfx Voodoo Graphics device | |
| 1844 | 0 = /dev/3dfx Primary 3Dfx graphics device | |
| 1845 | ||
| 1846 | 107 block Compaq Next Generation Drive Array, fourth controller | |
| 1847 | 0 = /dev/cciss/c3d0 First logical drive, whole disk | |
| 1848 | 16 = /dev/cciss/c3d1 Second logical drive, whole disk | |
| 1849 | ... | |
| 1850 | 240 = /dev/cciss/c3d15 16th logical drive, whole disk | |
| 1851 | ||
| 1852 | Partitions are handled the same way as for Mylex | |
| 1853 | DAC960 (see major number 48) except that the limit on | |
| 1854 | partitions is 15. | |
| 1855 | ||
| 1856 | 108 char Device independent PPP interface | |
| 1857 | 0 = /dev/ppp Device independent PPP interface | |
| 1858 | ||
| 1859 | 108 block Compaq Next Generation Drive Array, fifth controller | |
| 1860 | 0 = /dev/cciss/c4d0 First logical drive, whole disk | |
| 1861 | 16 = /dev/cciss/c4d1 Second logical drive, whole disk | |
| 1862 | ... | |
| 1863 | 240 = /dev/cciss/c4d15 16th logical drive, whole disk | |
| 1864 | ||
| 1865 | Partitions are handled the same way as for Mylex | |
| 1866 | DAC960 (see major number 48) except that the limit on | |
| 1867 | partitions is 15. | |
| 1868 | ||
| 1869 | 109 char Reserved for logical volume manager | |
| 1870 | ||
| 1871 | 109 block Compaq Next Generation Drive Array, sixth controller | |
| 1872 | 0 = /dev/cciss/c5d0 First logical drive, whole disk | |
| 1873 | 16 = /dev/cciss/c5d1 Second logical drive, whole disk | |
| 1874 | ... | |
| 1875 | 240 = /dev/cciss/c5d15 16th logical drive, whole disk | |
| 1876 | ||
| 1877 | Partitions are handled the same way as for Mylex | |
| 1878 | DAC960 (see major number 48) except that the limit on | |
| 1879 | partitions is 15. | |
| 1880 | ||
| 1881 | 110 char miroMEDIA Surround board | |
| 1882 | 0 = /dev/srnd0 First miroMEDIA Surround board | |
| 1883 | 1 = /dev/srnd1 Second miroMEDIA Surround board | |
| 1884 | ... | |
| 1885 | ||
| 1886 | 110 block Compaq Next Generation Drive Array, seventh controller | |
| 1887 | 0 = /dev/cciss/c6d0 First logical drive, whole disk | |
| 1888 | 16 = /dev/cciss/c6d1 Second logical drive, whole disk | |
| 1889 | ... | |
| 1890 | 240 = /dev/cciss/c6d15 16th logical drive, whole disk | |
| 1891 | ||
| 1892 | Partitions are handled the same way as for Mylex | |
| 1893 | DAC960 (see major number 48) except that the limit on | |
| 1894 | partitions is 15. | |
| 1895 | ||
| 04c860c1 | 1896 | 111 char |
| 1da177e4 | 1897 | |
| 5d3f083d | 1898 | 111 block Compaq Next Generation Drive Array, eighth controller |
| 1da177e4 LT |
1899 | 0 = /dev/cciss/c7d0 First logical drive, whole disk |
| 1900 | 16 = /dev/cciss/c7d1 Second logical drive, whole disk | |
| 1901 | ... | |
| 1902 | 240 = /dev/cciss/c7d15 16th logical drive, whole disk | |
| 1903 | ||
| 1904 | Partitions are handled the same way as for Mylex | |
| 1905 | DAC960 (see major number 48) except that the limit on | |
| 1906 | partitions is 15. | |
| 1907 | ||
| 1908 | 112 char ISI serial card | |
| 1909 | 0 = /dev/ttyM0 First ISI port | |
| 1910 | 1 = /dev/ttyM1 Second ISI port | |
| 1911 | ... | |
| 1912 | ||
| 1913 | There is currently a device-naming conflict between | |
| 1914 | these and PAM multimodems (major 78). | |
| 1915 | ||
| 1916 | 112 block IBM iSeries virtual disk | |
| 1917 | 0 = /dev/iseries/vda First virtual disk, whole disk | |
| 1918 | 8 = /dev/iseries/vdb Second virtual disk, whole disk | |
| 1919 | ... | |
| 1920 | 200 = /dev/iseries/vdz 26th virtual disk, whole disk | |
| 1921 | 208 = /dev/iseries/vdaa 27th virtual disk, whole disk | |
| 1922 | ... | |
| 1923 | 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk | |
| 1924 | ||
| 1925 | Partitions are handled in the same way as for IDE | |
| 1926 | disks (see major number 3) except that the limit on | |
| 1927 | partitions is 7. | |
| 1928 | ||
| 1929 | 113 char ISI serial card - alternate devices | |
| 1930 | 0 = /dev/cum0 Callout device for ttyM0 | |
| 1931 | 1 = /dev/cum1 Callout device for ttyM1 | |
| 1932 | ... | |
| 1933 | ||
| 1934 | 113 block IBM iSeries virtual CD-ROM | |
| 1da177e4 LT |
1935 | 0 = /dev/iseries/vcda First virtual CD-ROM |
| 1936 | 1 = /dev/iseries/vcdb Second virtual CD-ROM | |
| 1937 | ... | |
| 1938 | ||
| 1939 | 114 char Picture Elements ISE board | |
| 1940 | 0 = /dev/ise0 First ISE board | |
| 1941 | 1 = /dev/ise1 Second ISE board | |
| 1942 | ... | |
| 1943 | 128 = /dev/isex0 Control node for first ISE board | |
| 1944 | 129 = /dev/isex1 Control node for second ISE board | |
| 1945 | ... | |
| 1946 | ||
| 1947 | The ISE board is an embedded computer, optimized for | |
| 1948 | image processing. The /dev/iseN nodes are the general | |
| 1949 | I/O access to the board, the /dev/isex0 nodes command | |
| 1950 | nodes used to control the board. | |
| 1951 | ||
| 1952 | 114 block IDE BIOS powered software RAID interfaces such as the | |
| 1953 | Promise Fastrak | |
| 1954 | ||
| 1955 | 0 = /dev/ataraid/d0 | |
| 1956 | 1 = /dev/ataraid/d0p1 | |
| 1957 | 2 = /dev/ataraid/d0p2 | |
| 1958 | ... | |
| 1959 | 16 = /dev/ataraid/d1 | |
| 1960 | 17 = /dev/ataraid/d1p1 | |
| 1961 | 18 = /dev/ataraid/d1p2 | |
| 1962 | ... | |
| 1963 | 255 = /dev/ataraid/d15p15 | |
| 1964 | ||
| 1965 | Partitions are handled in the same way as for IDE | |
| 1966 | disks (see major number 3) except that the limit on | |
| 1967 | partitions is 15. | |
| 1968 | ||
| 1969 | 115 char TI link cable devices (115 was formerly the console driver speaker) | |
| 1970 | 0 = /dev/tipar0 Parallel cable on first parallel port | |
| 1971 | ... | |
| 1972 | 7 = /dev/tipar7 Parallel cable on seventh parallel port | |
| 1973 | ||
| 1974 | 8 = /dev/tiser0 Serial cable on first serial port | |
| 1975 | ... | |
| 1976 | 15 = /dev/tiser7 Serial cable on seventh serial port | |
| 1977 | ||
| 1978 | 16 = /dev/tiusb0 First USB cable | |
| 1979 | ... | |
| 1980 | 47 = /dev/tiusb31 32nd USB cable | |
| 1981 | ||
| 1982 | 115 block NetWare (NWFS) Devices (0-255) | |
| 1983 | ||
| 1984 | The NWFS (NetWare) devices are used to present a | |
| 1985 | collection of NetWare Mirror Groups or NetWare | |
| 1986 | Partitions as a logical storage segment for | |
| 1987 | use in mounting NetWare volumes. A maximum of | |
| 1988 | 256 NetWare volumes can be supported in a single | |
| 1989 | machine. | |
| 1990 | ||
| 0ea6e611 | 1991 | http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/ |
| 1da177e4 LT |
1992 | |
| 1993 | 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume | |
| 1994 | 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume | |
| 1995 | 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume | |
| 1996 | ... | |
| 1997 | 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume | |
| 1998 | ||
| 1999 | 116 char Advanced Linux Sound Driver (ALSA) | |
| 2000 | ||
| 2001 | 116 block MicroMemory battery backed RAM adapter (NVRAM) | |
| 992caacf | 2002 | Supports 16 boards, 15 partitions each. |
| 1da177e4 LT |
2003 | Requested by neilb at cse.unsw.edu.au. |
| 2004 | ||
| 2005 | 0 = /dev/umem/d0 Whole of first board | |
| 2006 | 1 = /dev/umem/d0p1 First partition of first board | |
| 2007 | 2 = /dev/umem/d0p2 Second partition of first board | |
| 2008 | 15 = /dev/umem/d0p15 15th partition of first board | |
| 2009 | ||
| 2010 | 16 = /dev/umem/d1 Whole of second board | |
| 2011 | 17 = /dev/umem/d1p1 First partition of second board | |
| 2012 | ... | |
| 2013 | 255= /dev/umem/d15p15 15th partition of 16th board. | |
| 2014 | ||
| 2015 | 117 char COSA/SRP synchronous serial card | |
| 2016 | 0 = /dev/cosa0c0 1st board, 1st channel | |
| 2017 | 1 = /dev/cosa0c1 1st board, 2nd channel | |
| 2018 | ... | |
| 2019 | 16 = /dev/cosa1c0 2nd board, 1st channel | |
| 2020 | 17 = /dev/cosa1c1 2nd board, 2nd channel | |
| 2021 | ... | |
| 2022 | ||
| 2023 | 117 block Enterprise Volume Management System (EVMS) | |
| 2024 | ||
| 2025 | The EVMS driver uses a layered, plug-in model to provide | |
| 2026 | unparalleled flexibility and extensibility in managing | |
| 2027 | storage. This allows for easy expansion or customization | |
| 2028 | of various levels of volume management. Requested by | |
| 2029 | Mark Peloquin (peloquin at us.ibm.com). | |
| 2030 | ||
| 2031 | Note: EVMS populates and manages all the devnodes in | |
| 2032 | /dev/evms. | |
| 2033 | ||
| 2034 | http://sf.net/projects/evms | |
| 2035 | ||
| 2036 | 0 = /dev/evms/block_device EVMS block device | |
| 2037 | 1 = /dev/evms/legacyname1 First EVMS legacy device | |
| 2038 | 2 = /dev/evms/legacyname2 Second EVMS legacy device | |
| 2039 | ... | |
| 2040 | Both ranges can grow (down or up) until they meet. | |
| 2041 | ... | |
| 2042 | 254 = /dev/evms/EVMSname2 Second EVMS native device | |
| 2043 | 255 = /dev/evms/EVMSname1 First EVMS native device | |
| 2044 | ||
| 2045 | Note: legacyname(s) are derived from the normal legacy | |
| 2046 | device names. For example, /dev/hda5 would become | |
| 2047 | /dev/evms/hda5. | |
| 2048 | ||
| 2049 | 118 char IBM Cryptographic Accelerator | |
| 2050 | 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators | |
| 2051 | 1 = /dev/ica0 IBMCA Device 0 | |
| 2052 | 2 = /dev/ica1 IBMCA Device 1 | |
| 2053 | ... | |
| 2054 | ||
| 2055 | 119 char VMware virtual network control | |
| 04c860c1 AC |
2056 | 0 = /dev/vnet0 1st virtual network |
| 2057 | 1 = /dev/vnet1 2nd virtual network | |
| 1da177e4 LT |
2058 | ... |
| 2059 | ||
| 2060 | 120-127 char LOCAL/EXPERIMENTAL USE | |
| 30aaa5c6 | 2061 | |
| 1da177e4 LT |
2062 | 120-127 block LOCAL/EXPERIMENTAL USE |
| 2063 | Allocated for local/experimental use. For devices not | |
| 2064 | assigned official numbers, these ranges should be | |
| 2065 | used in order to avoid conflicting with future assignments. | |
| 2066 | ||
| 2067 | 128-135 char Unix98 PTY masters | |
| 2068 | ||
| 2069 | These devices should not have corresponding device | |
| 2070 | nodes; instead they should be accessed through the | |
| 2071 | /dev/ptmx cloning interface. | |
| 2072 | ||
| 1da177e4 LT |
2073 | 128 block SCSI disk devices (128-143) |
| 2074 | 0 = /dev/sddy 129th SCSI disk whole disk | |
| 2075 | 16 = /dev/sddz 130th SCSI disk whole disk | |
| 2076 | 32 = /dev/sdea 131th SCSI disk whole disk | |
| 2077 | ... | |
| 2078 | 240 = /dev/sden 144th SCSI disk whole disk | |
| 2079 | ||
| 2080 | Partitions are handled in the same way as for IDE | |
| 2081 | disks (see major number 3) except that the limit on | |
| 2082 | partitions is 15. | |
| 2083 | ||
| 1da177e4 LT |
2084 | 129 block SCSI disk devices (144-159) |
| 2085 | 0 = /dev/sdeo 145th SCSI disk whole disk | |
| 2086 | 16 = /dev/sdep 146th SCSI disk whole disk | |
| 2087 | 32 = /dev/sdeq 147th SCSI disk whole disk | |
| 2088 | ... | |
| 2089 | 240 = /dev/sdfd 160th SCSI disk whole disk | |
| 2090 | ||
| 2091 | Partitions are handled in the same way as for IDE | |
| 2092 | disks (see major number 3) except that the limit on | |
| 2093 | partitions is 15. | |
| 2094 | ||
| 2095 | 130 char (Misc devices) | |
| 2096 | ||
| 2097 | 130 block SCSI disk devices (160-175) | |
| 2098 | 0 = /dev/sdfe 161st SCSI disk whole disk | |
| 2099 | 16 = /dev/sdff 162nd SCSI disk whole disk | |
| 2100 | 32 = /dev/sdfg 163rd SCSI disk whole disk | |
| 2101 | ... | |
| 2102 | 240 = /dev/sdft 176th SCSI disk whole disk | |
| 2103 | ||
| 2104 | Partitions are handled in the same way as for IDE | |
| 2105 | disks (see major number 3) except that the limit on | |
| 2106 | partitions is 15. | |
| 2107 | ||
| 2108 | 131 block SCSI disk devices (176-191) | |
| 2109 | 0 = /dev/sdfu 177th SCSI disk whole disk | |
| 2110 | 16 = /dev/sdfv 178th SCSI disk whole disk | |
| 2111 | 32 = /dev/sdfw 179th SCSI disk whole disk | |
| 2112 | ... | |
| 2113 | 240 = /dev/sdgj 192nd SCSI disk whole disk | |
| 2114 | ||
| 2115 | Partitions are handled in the same way as for IDE | |
| 2116 | disks (see major number 3) except that the limit on | |
| 2117 | partitions is 15. | |
| 2118 | ||
| 1da177e4 LT |
2119 | 132 block SCSI disk devices (192-207) |
| 2120 | 0 = /dev/sdgk 193rd SCSI disk whole disk | |
| 2121 | 16 = /dev/sdgl 194th SCSI disk whole disk | |
| 2122 | 32 = /dev/sdgm 195th SCSI disk whole disk | |
| 2123 | ... | |
| 2124 | 240 = /dev/sdgz 208th SCSI disk whole disk | |
| 2125 | ||
| 2126 | Partitions are handled in the same way as for IDE | |
| 2127 | disks (see major number 3) except that the limit on | |
| 2128 | partitions is 15. | |
| 2129 | ||
| 1da177e4 LT |
2130 | 133 block SCSI disk devices (208-223) |
| 2131 | 0 = /dev/sdha 209th SCSI disk whole disk | |
| 2132 | 16 = /dev/sdhb 210th SCSI disk whole disk | |
| 2133 | 32 = /dev/sdhc 211th SCSI disk whole disk | |
| 2134 | ... | |
| 2135 | 240 = /dev/sdhp 224th SCSI disk whole disk | |
| 2136 | ||
| 2137 | Partitions are handled in the same way as for IDE | |
| 2138 | disks (see major number 3) except that the limit on | |
| 2139 | partitions is 15. | |
| 2140 | ||
| 1da177e4 LT |
2141 | 134 block SCSI disk devices (224-239) |
| 2142 | 0 = /dev/sdhq 225th SCSI disk whole disk | |
| 2143 | 16 = /dev/sdhr 226th SCSI disk whole disk | |
| 2144 | 32 = /dev/sdhs 227th SCSI disk whole disk | |
| 2145 | ... | |
| 2146 | 240 = /dev/sdif 240th SCSI disk whole disk | |
| 2147 | ||
| 2148 | Partitions are handled in the same way as for IDE | |
| 2149 | disks (see major number 3) except that the limit on | |
| 2150 | partitions is 15. | |
| 2151 | ||
| 1da177e4 LT |
2152 | 135 block SCSI disk devices (240-255) |
| 2153 | 0 = /dev/sdig 241st SCSI disk whole disk | |
| 2154 | 16 = /dev/sdih 242nd SCSI disk whole disk | |
| 2155 | 32 = /dev/sdih 243rd SCSI disk whole disk | |
| 2156 | ... | |
| 2157 | 240 = /dev/sdiv 256th SCSI disk whole disk | |
| 2158 | ||
| 2159 | Partitions are handled in the same way as for IDE | |
| 2160 | disks (see major number 3) except that the limit on | |
| 2161 | partitions is 15. | |
| 2162 | ||
| 1da177e4 LT |
2163 | 136-143 char Unix98 PTY slaves |
| 2164 | 0 = /dev/pts/0 First Unix98 pseudo-TTY | |
| 01dd2fbf | 2165 | 1 = /dev/pts/1 Second Unix98 pseudo-TTY |
| 1da177e4 LT |
2166 | ... |
| 2167 | ||
| 2168 | These device nodes are automatically generated with | |
| 2169 | the proper permissions and modes by mounting the | |
| 2170 | devpts filesystem onto /dev/pts with the appropriate | |
| 2171 | mount options (distribution dependent, however, on | |
| 2172 | *most* distributions the appropriate options are | |
| 2173 | "mode=0620,gid=<gid of the "tty" group>".) | |
| 2174 | ||
| 2175 | 136 block Mylex DAC960 PCI RAID controller; ninth controller | |
| 2176 | 0 = /dev/rd/c8d0 First disk, whole disk | |
| 2177 | 8 = /dev/rd/c8d1 Second disk, whole disk | |
| 2178 | ... | |
| 2179 | 248 = /dev/rd/c8d31 32nd disk, whole disk | |
| 2180 | ||
| 2181 | Partitions are handled as for major 48. | |
| 2182 | ||
| 2183 | 137 block Mylex DAC960 PCI RAID controller; tenth controller | |
| 2184 | 0 = /dev/rd/c9d0 First disk, whole disk | |
| 2185 | 8 = /dev/rd/c9d1 Second disk, whole disk | |
| 2186 | ... | |
| 2187 | 248 = /dev/rd/c9d31 32nd disk, whole disk | |
| 2188 | ||
| 2189 | Partitions are handled as for major 48. | |
| 2190 | ||
| 2191 | 138 block Mylex DAC960 PCI RAID controller; eleventh controller | |
| 2192 | 0 = /dev/rd/c10d0 First disk, whole disk | |
| 2193 | 8 = /dev/rd/c10d1 Second disk, whole disk | |
| 2194 | ... | |
| 2195 | 248 = /dev/rd/c10d31 32nd disk, whole disk | |
| 2196 | ||
| 2197 | Partitions are handled as for major 48. | |
| 2198 | ||
| 2199 | 139 block Mylex DAC960 PCI RAID controller; twelfth controller | |
| 2200 | 0 = /dev/rd/c11d0 First disk, whole disk | |
| 2201 | 8 = /dev/rd/c11d1 Second disk, whole disk | |
| 2202 | ... | |
| 2203 | 248 = /dev/rd/c11d31 32nd disk, whole disk | |
| 2204 | ||
| 2205 | Partitions are handled as for major 48. | |
| 2206 | ||
| 2207 | 140 block Mylex DAC960 PCI RAID controller; thirteenth controller | |
| 2208 | 0 = /dev/rd/c12d0 First disk, whole disk | |
| 2209 | 8 = /dev/rd/c12d1 Second disk, whole disk | |
| 2210 | ... | |
| 2211 | 248 = /dev/rd/c12d31 32nd disk, whole disk | |
| 2212 | ||
| 2213 | Partitions are handled as for major 48. | |
| 2214 | ||
| 2215 | 141 block Mylex DAC960 PCI RAID controller; fourteenth controller | |
| 2216 | 0 = /dev/rd/c13d0 First disk, whole disk | |
| 2217 | 8 = /dev/rd/c13d1 Second disk, whole disk | |
| 2218 | ... | |
| 2219 | 248 = /dev/rd/c13d31 32nd disk, whole disk | |
| 2220 | ||
| 2221 | Partitions are handled as for major 48. | |
| 2222 | ||
| 2223 | 142 block Mylex DAC960 PCI RAID controller; fifteenth controller | |
| 2224 | 0 = /dev/rd/c14d0 First disk, whole disk | |
| 2225 | 8 = /dev/rd/c14d1 Second disk, whole disk | |
| 2226 | ... | |
| 2227 | 248 = /dev/rd/c14d31 32nd disk, whole disk | |
| 2228 | ||
| 2229 | Partitions are handled as for major 48. | |
| 2230 | ||
| 2231 | 143 block Mylex DAC960 PCI RAID controller; sixteenth controller | |
| 2232 | 0 = /dev/rd/c15d0 First disk, whole disk | |
| 2233 | 8 = /dev/rd/c15d1 Second disk, whole disk | |
| 2234 | ... | |
| 2235 | 248 = /dev/rd/c15d31 32nd disk, whole disk | |
| 2236 | ||
| 2237 | Partitions are handled as for major 48. | |
| 2238 | ||
| 2239 | 144 char Encapsulated PPP | |
| 2240 | 0 = /dev/pppox0 First PPP over Ethernet | |
| 2241 | ... | |
| 2242 | 63 = /dev/pppox63 64th PPP over Ethernet | |
| 2243 | ||
| 2244 | This is primarily used for ADSL. | |
| 2245 | ||
| 2246 | The SST 5136-DN DeviceNet interface driver has been | |
| 2247 | relocated to major 183 due to an unfortunate conflict. | |
| 2248 | ||
| 2249 | 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts | |
| 2250 | 0 = mounted device 256 | |
| 2251 | 255 = mounted device 511 | |
| 2252 | ||
| 2253 | 145 char SAM9407-based soundcard | |
| 2254 | 0 = /dev/sam0_mixer | |
| 2255 | 1 = /dev/sam0_sequencer | |
| 2256 | 2 = /dev/sam0_midi00 | |
| 2257 | 3 = /dev/sam0_dsp | |
| 2258 | 4 = /dev/sam0_audio | |
| 2259 | 6 = /dev/sam0_sndstat | |
| 2260 | 18 = /dev/sam0_midi01 | |
| 2261 | 34 = /dev/sam0_midi02 | |
| 2262 | 50 = /dev/sam0_midi03 | |
| 2263 | 64 = /dev/sam1_mixer | |
| 2264 | ... | |
| 2265 | 128 = /dev/sam2_mixer | |
| 2266 | ... | |
| 2267 | 192 = /dev/sam3_mixer | |
| 2268 | ... | |
| 2269 | ||
| 2270 | Device functions match OSS, but offer a number of | |
| 2271 | addons, which are sam9407 specific. OSS can be | |
| 2272 | operated simultaneously, taking care of the codec. | |
| 2273 | ||
| 2274 | 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts | |
| 2275 | 0 = mounted device 512 | |
| 2276 | 255 = mounted device 767 | |
| 2277 | ||
| 2278 | 146 char SYSTRAM SCRAMNet mirrored-memory network | |
| 2279 | 0 = /dev/scramnet0 First SCRAMNet device | |
| 2280 | 1 = /dev/scramnet1 Second SCRAMNet device | |
| 2281 | ... | |
| 2282 | ||
| 2283 | 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts | |
| 2284 | 0 = mounted device 768 | |
| 2285 | 255 = mounted device 1023 | |
| 2286 | ||
| 2287 | 147 char Aureal Semiconductor Vortex Audio device | |
| 2288 | 0 = /dev/aureal0 First Aureal Vortex | |
| 2289 | 1 = /dev/aureal1 Second Aureal Vortex | |
| 2290 | ... | |
| 2291 | ||
| 2292 | 147 block Distributed Replicated Block Device (DRBD) | |
| 2293 | 0 = /dev/drbd0 First DRBD device | |
| 2294 | 1 = /dev/drbd1 Second DRBD device | |
| 2295 | ... | |
| 2296 | ||
| 2297 | 148 char Technology Concepts serial card | |
| 2298 | 0 = /dev/ttyT0 First TCL port | |
| 2299 | 1 = /dev/ttyT1 Second TCL port | |
| 2300 | ... | |
| 2301 | ||
| 2302 | 149 char Technology Concepts serial card - alternate devices | |
| 2303 | 0 = /dev/cut0 Callout device for ttyT0 | |
| 2304 | 1 = /dev/cut0 Callout device for ttyT1 | |
| 2305 | ... | |
| 2306 | ||
| 2307 | 150 char Real-Time Linux FIFOs | |
| 2308 | 0 = /dev/rtf0 First RTLinux FIFO | |
| 2309 | 1 = /dev/rtf1 Second RTLinux FIFO | |
| 2310 | ... | |
| 2311 | ||
| 2312 | 151 char DPT I2O SmartRaid V controller | |
| 2313 | 0 = /dev/dpti0 First DPT I2O adapter | |
| 2314 | 1 = /dev/dpti1 Second DPT I2O adapter | |
| 2315 | ... | |
| 2316 | ||
| 2317 | 152 char EtherDrive Control Device | |
| 2318 | 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive | |
| 2319 | 1 = /dev/etherd/err Monitor errors | |
| 2320 | 2 = /dev/etherd/raw Raw AoE packet monitor | |
| 2321 | ||
| 2322 | 152 block EtherDrive Block Devices | |
| 2323 | 0 = /dev/etherd/0 EtherDrive 0 | |
| 2324 | ... | |
| 2325 | 255 = /dev/etherd/255 EtherDrive 255 | |
| 2326 | ||
| 2327 | 153 char SPI Bus Interface (sometimes referred to as MicroWire) | |
| 2328 | 0 = /dev/spi0 First SPI device on the bus | |
| 2329 | 1 = /dev/spi1 Second SPI device on the bus | |
| 2330 | ... | |
| 2331 | 15 = /dev/spi15 Sixteenth SPI device on the bus | |
| 2332 | ||
| 2333 | 153 block Enhanced Metadisk RAID (EMD) storage units | |
| 2334 | 0 = /dev/emd/0 First unit | |
| 2335 | 1 = /dev/emd/0p1 Partition 1 on First unit | |
| 2336 | 2 = /dev/emd/0p2 Partition 2 on First unit | |
| 2337 | ... | |
| 2338 | 15 = /dev/emd/0p15 Partition 15 on First unit | |
| 2339 | ||
| 2340 | 16 = /dev/emd/1 Second unit | |
| 2341 | 32 = /dev/emd/2 Third unit | |
| 2342 | ... | |
| 2343 | 240 = /dev/emd/15 Sixteenth unit | |
| 2344 | ||
| 2345 | Partitions are handled in the same way as for IDE | |
| 2346 | disks (see major number 3) except that the limit on | |
| 2347 | partitions is 15. | |
| 2348 | ||
| 2349 | 154 char Specialix RIO serial card | |
| 2350 | 0 = /dev/ttySR0 First RIO port | |
| 2351 | ... | |
| 2352 | 255 = /dev/ttySR255 256th RIO port | |
| 2353 | ||
| 2354 | 155 char Specialix RIO serial card - alternate devices | |
| 2355 | 0 = /dev/cusr0 Callout device for ttySR0 | |
| 2356 | ... | |
| 2357 | 255 = /dev/cusr255 Callout device for ttySR255 | |
| 2358 | ||
| 2359 | 156 char Specialix RIO serial card | |
| 2360 | 0 = /dev/ttySR256 257th RIO port | |
| 2361 | ... | |
| 2362 | 255 = /dev/ttySR511 512th RIO port | |
| 2363 | ||
| 2364 | 157 char Specialix RIO serial card - alternate devices | |
| 2365 | 0 = /dev/cusr256 Callout device for ttySR256 | |
| 2366 | ... | |
| 2367 | 255 = /dev/cusr511 Callout device for ttySR511 | |
| 2368 | ||
| 2369 | 158 char Dialogic GammaLink fax driver | |
| 2370 | 0 = /dev/gfax0 GammaLink channel 0 | |
| 2371 | 1 = /dev/gfax1 GammaLink channel 1 | |
| 2372 | ... | |
| 2373 | ||
| 2374 | 159 char RESERVED | |
| 30aaa5c6 | 2375 | |
| 1da177e4 LT |
2376 | 159 block RESERVED |
| 2377 | ||
| 2378 | 160 char General Purpose Instrument Bus (GPIB) | |
| 2379 | 0 = /dev/gpib0 First GPIB bus | |
| 2380 | 1 = /dev/gpib1 Second GPIB bus | |
| 2381 | ... | |
| 2382 | ||
| 2383 | 160 block Carmel 8-port SATA Disks on First Controller | |
| 2384 | 0 = /dev/carmel/0 SATA disk 0 whole disk | |
| 2385 | 1 = /dev/carmel/0p1 SATA disk 0 partition 1 | |
| 2386 | ... | |
| 2387 | 31 = /dev/carmel/0p31 SATA disk 0 partition 31 | |
| 2388 | ||
| 2389 | 32 = /dev/carmel/1 SATA disk 1 whole disk | |
| 2390 | 64 = /dev/carmel/2 SATA disk 2 whole disk | |
| 2391 | ... | |
| 2392 | 224 = /dev/carmel/7 SATA disk 7 whole disk | |
| 2393 | ||
| 2394 | Partitions are handled in the same way as for IDE | |
| 2395 | disks (see major number 3) except that the limit on | |
| 2396 | partitions is 31. | |
| 2397 | ||
| 2398 | 161 char IrCOMM devices (IrDA serial/parallel emulation) | |
| 2399 | 0 = /dev/ircomm0 First IrCOMM device | |
| 2400 | 1 = /dev/ircomm1 Second IrCOMM device | |
| 2401 | ... | |
| 2402 | 16 = /dev/irlpt0 First IrLPT device | |
| 2403 | 17 = /dev/irlpt1 Second IrLPT device | |
| 2404 | ... | |
| 2405 | ||
| 2406 | 161 block Carmel 8-port SATA Disks on Second Controller | |
| 2407 | 0 = /dev/carmel/8 SATA disk 8 whole disk | |
| 2408 | 1 = /dev/carmel/8p1 SATA disk 8 partition 1 | |
| 2409 | ... | |
| 2410 | 31 = /dev/carmel/8p31 SATA disk 8 partition 31 | |
| 2411 | ||
| 2412 | 32 = /dev/carmel/9 SATA disk 9 whole disk | |
| 2413 | 64 = /dev/carmel/10 SATA disk 10 whole disk | |
| 2414 | ... | |
| 2415 | 224 = /dev/carmel/15 SATA disk 15 whole disk | |
| 2416 | ||
| 2417 | Partitions are handled in the same way as for IDE | |
| 2418 | disks (see major number 3) except that the limit on | |
| 30aaa5c6 | 2419 | partitions is 31. |
| 1da177e4 LT |
2420 | |
| 2421 | 162 char Raw block device interface | |
| 2422 | 0 = /dev/rawctl Raw I/O control device | |
| 2423 | 1 = /dev/raw/raw1 First raw I/O device | |
| 2424 | 2 = /dev/raw/raw2 Second raw I/O device | |
| 2425 | ... | |
| d2582a7a KM |
2426 | max minor number of raw device is set by kernel config |
| 2427 | MAX_RAW_DEVS or raw module parameter 'max_raw_devs' | |
| 1da177e4 | 2428 | |
| 04c860c1 | 2429 | 163 char |
| 1da177e4 LT |
2430 | |
| 2431 | 164 char Chase Research AT/PCI-Fast serial card | |
| 2432 | 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0 | |
| 2433 | ... | |
| 2434 | 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15 | |
| 2435 | 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0 | |
| 2436 | ... | |
| 2437 | 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15 | |
| 2438 | 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0 | |
| 2439 | ... | |
| 2440 | 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15 | |
| 2441 | 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0 | |
| 2442 | ... | |
| 2443 | 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15 | |
| 2444 | ||
| 2445 | 165 char Chase Research AT/PCI-Fast serial card - alternate devices | |
| 2446 | 0 = /dev/cuch0 Callout device for ttyCH0 | |
| 2447 | ... | |
| 2448 | 63 = /dev/cuch63 Callout device for ttyCH63 | |
| 2449 | ||
| 2450 | 166 char ACM USB modems | |
| 2451 | 0 = /dev/ttyACM0 First ACM modem | |
| 2452 | 1 = /dev/ttyACM1 Second ACM modem | |
| 2453 | ... | |
| 2454 | ||
| 2455 | 167 char ACM USB modems - alternate devices | |
| 2456 | 0 = /dev/cuacm0 Callout device for ttyACM0 | |
| 2457 | 1 = /dev/cuacm1 Callout device for ttyACM1 | |
| 2458 | ... | |
| 2459 | ||
| 2460 | 168 char Eracom CSA7000 PCI encryption adaptor | |
| 2461 | 0 = /dev/ecsa0 First CSA7000 | |
| 2462 | 1 = /dev/ecsa1 Second CSA7000 | |
| 2463 | ... | |
| 2464 | ||
| 2465 | 169 char Eracom CSA8000 PCI encryption adaptor | |
| 2466 | 0 = /dev/ecsa8-0 First CSA8000 | |
| 2467 | 1 = /dev/ecsa8-1 Second CSA8000 | |
| 2468 | ... | |
| 2469 | ||
| 2470 | 170 char AMI MegaRAC remote access controller | |
| 2471 | 0 = /dev/megarac0 First MegaRAC card | |
| 2472 | 1 = /dev/megarac1 Second MegaRAC card | |
| 2473 | ... | |
| 2474 | ||
| 2475 | 171 char Reserved for IEEE 1394 (Firewire) | |
| 2476 | ||
| 1da177e4 LT |
2477 | 172 char Moxa Intellio serial card |
| 2478 | 0 = /dev/ttyMX0 First Moxa port | |
| 2479 | 1 = /dev/ttyMX1 Second Moxa port | |
| 2480 | ... | |
| 2481 | 127 = /dev/ttyMX127 128th Moxa port | |
| 2482 | 128 = /dev/moxactl Moxa control port | |
| 2483 | ||
| 2484 | 173 char Moxa Intellio serial card - alternate devices | |
| 2485 | 0 = /dev/cumx0 Callout device for ttyMX0 | |
| 2486 | 1 = /dev/cumx1 Callout device for ttyMX1 | |
| 2487 | ... | |
| 2488 | 127 = /dev/cumx127 Callout device for ttyMX127 | |
| 2489 | ||
| 2490 | 174 char SmartIO serial card | |
| 2491 | 0 = /dev/ttySI0 First SmartIO port | |
| 2492 | 1 = /dev/ttySI1 Second SmartIO port | |
| 2493 | ... | |
| 2494 | ||
| 2495 | 175 char SmartIO serial card - alternate devices | |
| 2496 | 0 = /dev/cusi0 Callout device for ttySI0 | |
| 2497 | 1 = /dev/cusi1 Callout device for ttySI1 | |
| 2498 | ... | |
| 2499 | ||
| 2500 | 176 char nCipher nFast PCI crypto accelerator | |
| 2501 | 0 = /dev/nfastpci0 First nFast PCI device | |
| 2502 | 1 = /dev/nfastpci1 First nFast PCI device | |
| 2503 | ... | |
| 2504 | ||
| 2505 | 177 char TI PCILynx memory spaces | |
| 2506 | 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card | |
| 2507 | ... | |
| 2508 | 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card | |
| 2509 | 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card | |
| 2510 | ... | |
| 2511 | 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card | |
| 2512 | 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card | |
| 2513 | ... | |
| 2514 | 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card | |
| 2515 | ||
| 2516 | 178 char Giganet cLAN1xxx virtual interface adapter | |
| 2517 | 0 = /dev/clanvi0 First cLAN adapter | |
| 2518 | 1 = /dev/clanvi1 Second cLAN adapter | |
| 2519 | ... | |
| 2520 | ||
| 04c860c1 AC |
2521 | 179 block MMC block devices |
| 2522 | 0 = /dev/mmcblk0 First SD/MMC card | |
| 2523 | 1 = /dev/mmcblk0p1 First partition on first MMC card | |
| 2524 | 8 = /dev/mmcblk1 Second SD/MMC card | |
| 2525 | ... | |
| 2526 | ||
| 5e71b7a6 OJ |
2527 | The start of next SD/MMC card can be configured with |
| 2528 | CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe | |
| 2529 | time using the mmcblk.perdev_minors option. That would | |
| 2530 | bump the offset between each card to be the configured | |
| 2531 | value instead of the default 8. | |
| 2532 | ||
| 1da177e4 LT |
2533 | 179 char CCube DVXChip-based PCI products |
| 2534 | 0 = /dev/dvxirq0 First DVX device | |
| 2535 | 1 = /dev/dvxirq1 Second DVX device | |
| 2536 | ... | |
| 2537 | ||
| 2538 | 180 char USB devices | |
| 2539 | 0 = /dev/usb/lp0 First USB printer | |
| 2540 | ... | |
| 2541 | 15 = /dev/usb/lp15 16th USB printer | |
| 1da177e4 LT |
2542 | 48 = /dev/usb/scanner0 First USB scanner |
| 2543 | ... | |
| 2544 | 63 = /dev/usb/scanner15 16th USB scanner | |
| 2545 | 64 = /dev/usb/rio500 Diamond Rio 500 | |
| 2546 | 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de) | |
| 2547 | 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD) | |
| 11420211 JE |
2548 | 96 = /dev/usb/hiddev0 1st USB HID device |
| 2549 | ... | |
| 2550 | 111 = /dev/usb/hiddev15 16th USB HID device | |
| 04c860c1 AC |
2551 | 112 = /dev/usb/auer0 1st auerswald ISDN device |
| 2552 | ... | |
| 2553 | 127 = /dev/usb/auer15 16th auerswald ISDN device | |
| 11420211 JE |
2554 | 128 = /dev/usb/brlvgr0 First Braille Voyager device |
| 2555 | ... | |
| 2556 | 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device | |
| 2557 | 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device | |
| 2558 | 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device | |
| 2559 | ... | |
| 30aaa5c6 | 2560 | 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device |
| 11420211 JE |
2561 | 144 = /dev/usb/lcd USB LCD device |
| 2562 | 160 = /dev/usb/legousbtower0 1st USB Legotower device | |
| 2563 | ... | |
| 2564 | 175 = /dev/usb/legousbtower15 16th USB Legotower device | |
| 5b775f67 GKH |
2565 | 176 = /dev/usb/usbtmc1 First USB TMC device |
| 2566 | ... | |
| 1b62d258 GKH |
2567 | 191 = /dev/usb/usbtmc16 16th USB TMC device |
| 2568 | 192 = /dev/usb/yurex1 First USB Yurex device | |
| 2569 | ... | |
| 2570 | 209 = /dev/usb/yurex16 16th USB Yurex device | |
| 1da177e4 LT |
2571 | |
| 2572 | 180 block USB block devices | |
| 953a7f20 PZ |
2573 | 0 = /dev/uba First USB block device |
| 2574 | 8 = /dev/ubb Second USB block device | |
| 2575 | 16 = /dev/ubc Third USB block device | |
| 30aaa5c6 | 2576 | ... |
| 1da177e4 LT |
2577 | |
| 2578 | 181 char Conrad Electronic parallel port radio clocks | |
| 2579 | 0 = /dev/pcfclock0 First Conrad radio clock | |
| 2580 | 1 = /dev/pcfclock1 Second Conrad radio clock | |
| 2581 | ... | |
| 2582 | ||
| 2583 | 182 char Picture Elements THR2 binarizer | |
| 2584 | 0 = /dev/pethr0 First THR2 board | |
| 2585 | 1 = /dev/pethr1 Second THR2 board | |
| 2586 | ... | |
| 2587 | ||
| 2588 | 183 char SST 5136-DN DeviceNet interface | |
| 2589 | 0 = /dev/ss5136dn0 First DeviceNet interface | |
| 2590 | 1 = /dev/ss5136dn1 Second DeviceNet interface | |
| 2591 | ... | |
| 2592 | ||
| 2593 | This device used to be assigned to major number 144. | |
| 2594 | It had to be moved due to an unfortunate conflict. | |
| 2595 | ||
| 2596 | 184 char Picture Elements' video simulator/sender | |
| 2597 | 0 = /dev/pevss0 First sender board | |
| 2598 | 1 = /dev/pevss1 Second sender board | |
| 2599 | ... | |
| 2600 | ||
| 2601 | 185 char InterMezzo high availability file system | |
| 2602 | 0 = /dev/intermezzo0 First cache manager | |
| 2603 | 1 = /dev/intermezzo1 Second cache manager | |
| 2604 | ... | |
| 2605 | ||
| 0ea6e611 JM |
2606 | See http://web.archive.org/web/20080115195241/ |
| 2607 | http://inter-mezzo.org/index.html | |
| 1da177e4 LT |
2608 | |
| 2609 | 186 char Object-based storage control device | |
| 2610 | 0 = /dev/obd0 First obd control device | |
| 2611 | 1 = /dev/obd1 Second obd control device | |
| 2612 | ... | |
| 2613 | ||
| 2614 | See ftp://ftp.lustre.org/pub/obd for code and information. | |
| 2615 | ||
| 2616 | 187 char DESkey hardware encryption device | |
| 2617 | 0 = /dev/deskey0 First DES key | |
| 2618 | 1 = /dev/deskey1 Second DES key | |
| 2619 | ... | |
| 2620 | ||
| 2621 | 188 char USB serial converters | |
| 2622 | 0 = /dev/ttyUSB0 First USB serial converter | |
| 2623 | 1 = /dev/ttyUSB1 Second USB serial converter | |
| 2624 | ... | |
| 2625 | ||
| 2626 | 189 char USB serial converters - alternate devices | |
| 2627 | 0 = /dev/cuusb0 Callout device for ttyUSB0 | |
| 2628 | 1 = /dev/cuusb1 Callout device for ttyUSB1 | |
| 2629 | ... | |
| 2630 | ||
| 2631 | 190 char Kansas City tracker/tuner card | |
| 2632 | 0 = /dev/kctt0 First KCT/T card | |
| 2633 | 1 = /dev/kctt1 Second KCT/T card | |
| 2634 | ... | |
| 2635 | ||
| 2636 | 191 char Reserved for PCMCIA | |
| 2637 | ||
| 2638 | 192 char Kernel profiling interface | |
| 2639 | 0 = /dev/profile Profiling control device | |
| 2640 | 1 = /dev/profile0 Profiling device for CPU 0 | |
| 2641 | 2 = /dev/profile1 Profiling device for CPU 1 | |
| 2642 | ... | |
| 2643 | ||
| 2644 | 193 char Kernel event-tracing interface | |
| 2645 | 0 = /dev/trace Tracing control device | |
| 2646 | 1 = /dev/trace0 Tracing device for CPU 0 | |
| 2647 | 2 = /dev/trace1 Tracing device for CPU 1 | |
| 2648 | ... | |
| 2649 | ||
| 2650 | 194 char linVideoStreams (LINVS) | |
| 2651 | 0 = /dev/mvideo/status0 Video compression status | |
| 2652 | 1 = /dev/mvideo/stream0 Video stream | |
| 2653 | 2 = /dev/mvideo/frame0 Single compressed frame | |
| 2654 | 3 = /dev/mvideo/rawframe0 Raw uncompressed frame | |
| 2655 | 4 = /dev/mvideo/codec0 Direct codec access | |
| 2656 | 5 = /dev/mvideo/video4linux0 Video4Linux compatibility | |
| 2657 | ||
| 2658 | 16 = /dev/mvideo/status1 Second device | |
| 2659 | ... | |
| 2660 | 32 = /dev/mvideo/status2 Third device | |
| 2661 | ... | |
| 2662 | ... | |
| 30aaa5c6 | 2663 | 240 = /dev/mvideo/status15 16th device |
| 1da177e4 LT |
2664 | ... |
| 2665 | ||
| 2666 | 195 char Nvidia graphics devices | |
| 2667 | 0 = /dev/nvidia0 First Nvidia card | |
| 2668 | 1 = /dev/nvidia1 Second Nvidia card | |
| 2669 | ... | |
| 2670 | 255 = /dev/nvidiactl Nvidia card control device | |
| 2671 | ||
| 2672 | 196 char Tormenta T1 card | |
| 2673 | 0 = /dev/tor/0 Master control channel for all cards | |
| 2674 | 1 = /dev/tor/1 First DS0 | |
| 2675 | 2 = /dev/tor/2 Second DS0 | |
| 2676 | ... | |
| 2677 | 48 = /dev/tor/48 48th DS0 | |
| 2678 | 49 = /dev/tor/49 First pseudo-channel | |
| 2679 | 50 = /dev/tor/50 Second pseudo-channel | |
| 2680 | ... | |
| 2681 | ||
| 2682 | 197 char OpenTNF tracing facility | |
| 2683 | 0 = /dev/tnf/t0 Trace 0 data extraction | |
| 2684 | 1 = /dev/tnf/t1 Trace 1 data extraction | |
| 2685 | ... | |
| 2686 | 128 = /dev/tnf/status Tracing facility status | |
| 2687 | 130 = /dev/tnf/trace Tracing device | |
| 2688 | ||
| 2689 | 198 char Total Impact TPMP2 quad coprocessor PCI card | |
| 2690 | 0 = /dev/tpmp2/0 First card | |
| 2691 | 1 = /dev/tpmp2/1 Second card | |
| 2692 | ... | |
| 2693 | ||
| 2694 | 199 char Veritas volume manager (VxVM) volumes | |
| 2695 | 0 = /dev/vx/rdsk/*/* First volume | |
| 2696 | 1 = /dev/vx/rdsk/*/* Second volume | |
| 2697 | ... | |
| 2698 | ||
| 2699 | 199 block Veritas volume manager (VxVM) volumes | |
| 2700 | 0 = /dev/vx/dsk/*/* First volume | |
| 2701 | 1 = /dev/vx/dsk/*/* Second volume | |
| 2702 | ... | |
| 2703 | ||
| 2704 | The namespace in these directories is maintained by | |
| 2705 | the user space VxVM software. | |
| 2706 | ||
| 2707 | 200 char Veritas VxVM configuration interface | |
| 2708 | 0 = /dev/vx/config Configuration access node | |
| 2709 | 1 = /dev/vx/trace Volume i/o trace access node | |
| 2710 | 2 = /dev/vx/iod Volume i/o daemon access node | |
| 2711 | 3 = /dev/vx/info Volume information access node | |
| 2712 | 4 = /dev/vx/task Volume tasks access node | |
| 2713 | 5 = /dev/vx/taskmon Volume tasks monitor daemon | |
| 2714 | ||
| 2715 | 201 char Veritas VxVM dynamic multipathing driver | |
| 2716 | 0 = /dev/vx/rdmp/* First multipath device | |
| 2717 | 1 = /dev/vx/rdmp/* Second multipath device | |
| 2718 | ... | |
| 2719 | 201 block Veritas VxVM dynamic multipathing driver | |
| 2720 | 0 = /dev/vx/dmp/* First multipath device | |
| 2721 | 1 = /dev/vx/dmp/* Second multipath device | |
| 2722 | ... | |
| 2723 | ||
| 2724 | The namespace in these directories is maintained by | |
| 2725 | the user space VxVM software. | |
| 2726 | ||
| 2727 | 202 char CPU model-specific registers | |
| 2728 | 0 = /dev/cpu/0/msr MSRs on CPU 0 | |
| 2729 | 1 = /dev/cpu/1/msr MSRs on CPU 1 | |
| 2730 | ... | |
| 2731 | ||
| 11420211 JE |
2732 | 202 block Xen Virtual Block Device |
| 2733 | 0 = /dev/xvda First Xen VBD whole disk | |
| 2734 | 16 = /dev/xvdb Second Xen VBD whole disk | |
| 2735 | 32 = /dev/xvdc Third Xen VBD whole disk | |
| 2736 | ... | |
| 2737 | 240 = /dev/xvdp Sixteenth Xen VBD whole disk | |
| 2738 | ||
| 2739 | Partitions are handled in the same way as for IDE | |
| 2740 | disks (see major number 3) except that the limit on | |
| 2741 | partitions is 15. | |
| 2742 | ||
| 1da177e4 LT |
2743 | 203 char CPU CPUID information |
| 2744 | 0 = /dev/cpu/0/cpuid CPUID on CPU 0 | |
| 2745 | 1 = /dev/cpu/1/cpuid CPUID on CPU 1 | |
| 2746 | ... | |
| 2747 | ||
| 2748 | 204 char Low-density serial ports | |
| 2749 | 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0 | |
| 2750 | 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1 | |
| 2751 | 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2 | |
| 2752 | 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3 | |
| 2753 | 4 = /dev/ttyFB0 Intel Footbridge (ARM) | |
| 2754 | 5 = /dev/ttySA0 StrongARM builtin serial port 0 | |
| 2755 | 6 = /dev/ttySA1 StrongARM builtin serial port 1 | |
| 2756 | 7 = /dev/ttySA2 StrongARM builtin serial port 2 | |
| 2757 | 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0 | |
| 2758 | 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1 | |
| 2759 | 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2 | |
| 2760 | 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3 | |
| 2761 | 12 = /dev/ttyFW0 Firmware console - port 0 | |
| 2762 | 13 = /dev/ttyFW1 Firmware console - port 1 | |
| 2763 | 14 = /dev/ttyFW2 Firmware console - port 2 | |
| 2764 | 15 = /dev/ttyFW3 Firmware console - port 3 | |
| 2765 | 16 = /dev/ttyAM0 ARM "AMBA" serial port 0 | |
| 2766 | ... | |
| 2767 | 31 = /dev/ttyAM15 ARM "AMBA" serial port 15 | |
| 2768 | 32 = /dev/ttyDB0 DataBooster serial port 0 | |
| 2769 | ... | |
| 2770 | 39 = /dev/ttyDB7 DataBooster serial port 7 | |
| 2771 | 40 = /dev/ttySG0 SGI Altix console port | |
| 2772 | 41 = /dev/ttySMX0 Motorola i.MX - port 0 | |
| 2773 | 42 = /dev/ttySMX1 Motorola i.MX - port 1 | |
| 2774 | 43 = /dev/ttySMX2 Motorola i.MX - port 2 | |
| 2775 | 44 = /dev/ttyMM0 Marvell MPSC - port 0 | |
| 2776 | 45 = /dev/ttyMM1 Marvell MPSC - port 1 | |
| 2777 | 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0 | |
| 2778 | ... | |
| 2779 | 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5 | |
| 11420211 JE |
2780 | 50 = /dev/ttyIOC0 Altix serial card |
| 2781 | ... | |
| 2782 | 81 = /dev/ttyIOC31 Altix serial card | |
| 2783 | 82 = /dev/ttyVR0 NEC VR4100 series SIU | |
| 2784 | 83 = /dev/ttyVR1 NEC VR4100 series DSIU | |
| 2785 | 84 = /dev/ttyIOC84 Altix ioc4 serial card | |
| 2786 | ... | |
| 2787 | 115 = /dev/ttyIOC115 Altix ioc4 serial card | |
| 2788 | 116 = /dev/ttySIOC0 Altix ioc3 serial card | |
| 2789 | ... | |
| 2790 | 147 = /dev/ttySIOC31 Altix ioc3 serial card | |
| 2791 | 148 = /dev/ttyPSC0 PPC PSC - port 0 | |
| 2792 | ... | |
| 2793 | 153 = /dev/ttyPSC5 PPC PSC - port 5 | |
| 2794 | 154 = /dev/ttyAT0 ATMEL serial port 0 | |
| 1da177e4 | 2795 | ... |
| 11420211 JE |
2796 | 169 = /dev/ttyAT15 ATMEL serial port 15 |
| 2797 | 170 = /dev/ttyNX0 Hilscher netX serial port 0 | |
| 2798 | ... | |
| 2799 | 185 = /dev/ttyNX15 Hilscher netX serial port 15 | |
| a4521948 | 2800 | 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation |
| 30aaa5c6 TM |
2801 | 187 = /dev/ttyUL0 Xilinx uartlite - port 0 |
| 2802 | ... | |
| 2803 | 190 = /dev/ttyUL3 Xilinx uartlite - port 3 | |
| 2804 | 191 = /dev/xvc0 Xen virtual console - port 0 | |
| 04c860c1 AC |
2805 | 192 = /dev/ttyPZ0 pmac_zilog - port 0 |
| 2806 | ... | |
| 2807 | 195 = /dev/ttyPZ3 pmac_zilog - port 3 | |
| 2808 | 196 = /dev/ttyTX0 TX39/49 serial port 0 | |
| 2809 | ... | |
| 2810 | 204 = /dev/ttyTX7 TX39/49 serial port 7 | |
| 2811 | 205 = /dev/ttySC0 SC26xx serial port 0 | |
| 2812 | 206 = /dev/ttySC1 SC26xx serial port 1 | |
| 2813 | 207 = /dev/ttySC2 SC26xx serial port 2 | |
| 2814 | 208 = /dev/ttySC3 SC26xx serial port 3 | |
| 05b36302 AC |
2815 | 209 = /dev/ttyMAX0 MAX3100 serial port 0 |
| 2816 | 210 = /dev/ttyMAX1 MAX3100 serial port 1 | |
| 2817 | 211 = /dev/ttyMAX2 MAX3100 serial port 2 | |
| 2818 | 212 = /dev/ttyMAX3 MAX3100 serial port 3 | |
| 1da177e4 LT |
2819 | |
| 2820 | 205 char Low-density serial ports (alternate device) | |
| 2821 | 0 = /dev/culu0 Callout device for ttyLU0 | |
| 2822 | 1 = /dev/culu1 Callout device for ttyLU1 | |
| 2823 | 2 = /dev/culu2 Callout device for ttyLU2 | |
| 2824 | 3 = /dev/culu3 Callout device for ttyLU3 | |
| 2825 | 4 = /dev/cufb0 Callout device for ttyFB0 | |
| 2826 | 5 = /dev/cusa0 Callout device for ttySA0 | |
| 2827 | 6 = /dev/cusa1 Callout device for ttySA1 | |
| 2828 | 7 = /dev/cusa2 Callout device for ttySA2 | |
| 2829 | 8 = /dev/cusc0 Callout device for ttySC0 | |
| 2830 | 9 = /dev/cusc1 Callout device for ttySC1 | |
| 2831 | 10 = /dev/cusc2 Callout device for ttySC2 | |
| 2832 | 11 = /dev/cusc3 Callout device for ttySC3 | |
| 2833 | 12 = /dev/cufw0 Callout device for ttyFW0 | |
| 2834 | 13 = /dev/cufw1 Callout device for ttyFW1 | |
| 2835 | 14 = /dev/cufw2 Callout device for ttyFW2 | |
| 2836 | 15 = /dev/cufw3 Callout device for ttyFW3 | |
| 2837 | 16 = /dev/cuam0 Callout device for ttyAM0 | |
| 2838 | ... | |
| 2839 | 31 = /dev/cuam15 Callout device for ttyAM15 | |
| 2840 | 32 = /dev/cudb0 Callout device for ttyDB0 | |
| 2841 | ... | |
| 2842 | 39 = /dev/cudb7 Callout device for ttyDB7 | |
| 2843 | 40 = /dev/cusg0 Callout device for ttySG0 | |
| 2844 | 41 = /dev/ttycusmx0 Callout device for ttySMX0 | |
| 2845 | 42 = /dev/ttycusmx1 Callout device for ttySMX1 | |
| 2846 | 43 = /dev/ttycusmx2 Callout device for ttySMX2 | |
| 2847 | 46 = /dev/cucpm0 Callout device for ttyCPM0 | |
| 2848 | ... | |
| 2849 | 49 = /dev/cucpm5 Callout device for ttyCPM5 | |
| 2850 | 50 = /dev/cuioc40 Callout device for ttyIOC40 | |
| 2851 | ... | |
| 2852 | 81 = /dev/cuioc431 Callout device for ttyIOC431 | |
| 11420211 JE |
2853 | 82 = /dev/cuvr0 Callout device for ttyVR0 |
| 2854 | 83 = /dev/cuvr1 Callout device for ttyVR1 | |
| 1da177e4 | 2855 | |
| 1da177e4 LT |
2856 | 206 char OnStream SC-x0 tape devices |
| 2857 | 0 = /dev/osst0 First OnStream SCSI tape, mode 0 | |
| 2858 | 1 = /dev/osst1 Second OnStream SCSI tape, mode 0 | |
| 2859 | ... | |
| 2860 | 32 = /dev/osst0l First OnStream SCSI tape, mode 1 | |
| 2861 | 33 = /dev/osst1l Second OnStream SCSI tape, mode 1 | |
| 2862 | ... | |
| 2863 | 64 = /dev/osst0m First OnStream SCSI tape, mode 2 | |
| 2864 | 65 = /dev/osst1m Second OnStream SCSI tape, mode 2 | |
| 2865 | ... | |
| 2866 | 96 = /dev/osst0a First OnStream SCSI tape, mode 3 | |
| 2867 | 97 = /dev/osst1a Second OnStream SCSI tape, mode 3 | |
| 2868 | ... | |
| 2869 | 128 = /dev/nosst0 No rewind version of /dev/osst0 | |
| 2870 | 129 = /dev/nosst1 No rewind version of /dev/osst1 | |
| 2871 | ... | |
| 2872 | 160 = /dev/nosst0l No rewind version of /dev/osst0l | |
| 2873 | 161 = /dev/nosst1l No rewind version of /dev/osst1l | |
| 2874 | ... | |
| 2875 | 192 = /dev/nosst0m No rewind version of /dev/osst0m | |
| 2876 | 193 = /dev/nosst1m No rewind version of /dev/osst1m | |
| 2877 | ... | |
| 2878 | 224 = /dev/nosst0a No rewind version of /dev/osst0a | |
| 2879 | 225 = /dev/nosst1a No rewind version of /dev/osst1a | |
| 2880 | ... | |
| 2881 | ||
| 2882 | The OnStream SC-x0 SCSI tapes do not support the | |
| 2883 | standard SCSI SASD command set and therefore need | |
| 2884 | their own driver "osst". Note that the IDE, USB (and | |
| 2885 | maybe ParPort) versions may be driven via ide-scsi or | |
| 2886 | usb-storage SCSI emulation and this osst device and | |
| 2887 | driver as well. The ADR-x0 drives are QIC-157 | |
| 2888 | compliant and don't need osst. | |
| 2889 | ||
| 2890 | 207 char Compaq ProLiant health feature indicate | |
| 2891 | 0 = /dev/cpqhealth/cpqw Redirector interface | |
| 2892 | 1 = /dev/cpqhealth/crom EISA CROM | |
| 2893 | 2 = /dev/cpqhealth/cdt Data Table | |
| 2894 | 3 = /dev/cpqhealth/cevt Event Log | |
| 2895 | 4 = /dev/cpqhealth/casr Automatic Server Recovery | |
| 2896 | 5 = /dev/cpqhealth/cecc ECC Memory | |
| 2897 | 6 = /dev/cpqhealth/cmca Machine Check Architecture | |
| 2898 | 7 = /dev/cpqhealth/ccsm Deprecated CDT | |
| 2899 | 8 = /dev/cpqhealth/cnmi NMI Handling | |
| 2900 | 9 = /dev/cpqhealth/css Sideshow Management | |
| 2901 | 10 = /dev/cpqhealth/cram CMOS interface | |
| 2902 | 11 = /dev/cpqhealth/cpci PCI IRQ interface | |
| 2903 | ||
| 2904 | 208 char User space serial ports | |
| 2905 | 0 = /dev/ttyU0 First user space serial port | |
| 2906 | 1 = /dev/ttyU1 Second user space serial port | |
| 2907 | ... | |
| 2908 | ||
| 2909 | 209 char User space serial ports (alternate devices) | |
| 2910 | 0 = /dev/cuu0 Callout device for ttyU0 | |
| 2911 | 1 = /dev/cuu1 Callout device for ttyU1 | |
| 2912 | ... | |
| 2913 | ||
| 2914 | 210 char SBE, Inc. sync/async serial card | |
| 2915 | 0 = /dev/sbei/wxcfg0 Configuration device for board 0 | |
| 2916 | 1 = /dev/sbei/dld0 Download device for board 0 | |
| 2917 | 2 = /dev/sbei/wan00 WAN device, port 0, board 0 | |
| 2918 | 3 = /dev/sbei/wan01 WAN device, port 1, board 0 | |
| 2919 | 4 = /dev/sbei/wan02 WAN device, port 2, board 0 | |
| 2920 | 5 = /dev/sbei/wan03 WAN device, port 3, board 0 | |
| 2921 | 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0 | |
| 2922 | 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0 | |
| 2923 | 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0 | |
| 2924 | 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0 | |
| 2925 | 10 = /dev/sbei/wxcfg1 Configuration device for board 1 | |
| 2926 | 11 = /dev/sbei/dld1 Download device for board 1 | |
| 2927 | 12 = /dev/sbei/wan10 WAN device, port 0, board 1 | |
| 2928 | 13 = /dev/sbei/wan11 WAN device, port 1, board 1 | |
| 2929 | 14 = /dev/sbei/wan12 WAN device, port 2, board 1 | |
| 2930 | 15 = /dev/sbei/wan13 WAN device, port 3, board 1 | |
| 2931 | 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1 | |
| 2932 | 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1 | |
| 2933 | 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1 | |
| 2934 | 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1 | |
| 2935 | ... | |
| 2936 | ||
| 2937 | Yes, each board is really spaced 10 (decimal) apart. | |
| 2938 | ||
| 2939 | 211 char Addinum CPCI1500 digital I/O card | |
| 2940 | 0 = /dev/addinum/cpci1500/0 First CPCI1500 card | |
| 2941 | 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card | |
| 2942 | ... | |
| 2943 | ||
| 2944 | 212 char LinuxTV.org DVB driver subsystem | |
| 1da177e4 LT |
2945 | 0 = /dev/dvb/adapter0/video0 first video decoder of first card |
| 2946 | 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card | |
| 2947 | 2 = /dev/dvb/adapter0/sec0 (obsolete/unused) | |
| 2948 | 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card | |
| 2949 | 4 = /dev/dvb/adapter0/demux0 first demux device of first card | |
| 2950 | 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card | |
| 2951 | 6 = /dev/dvb/adapter0/ca0 first common access port of first card | |
| 2952 | 7 = /dev/dvb/adapter0/net0 first network device of first card | |
| 2953 | 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card | |
| 2954 | 9 = /dev/dvb/adapter0/video1 second video decoder of first card | |
| 2955 | ... | |
| 2956 | 64 = /dev/dvb/adapter1/video0 first video decoder of second card | |
| 2957 | ... | |
| 2958 | 128 = /dev/dvb/adapter2/video0 first video decoder of third card | |
| 2959 | ... | |
| 2960 | 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card | |
| 2961 | ||
| c611d2cd MH |
2962 | 216 char Bluetooth RFCOMM TTY devices |
| 2963 | 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device | |
| 2964 | 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device | |
| 1da177e4 LT |
2965 | ... |
| 2966 | ||
| c611d2cd MH |
2967 | 217 char Bluetooth RFCOMM TTY devices (alternate devices) |
| 2968 | 0 = /dev/curf0 Callout device for rfcomm0 | |
| 2969 | 1 = /dev/curf1 Callout device for rfcomm1 | |
| 1da177e4 LT |
2970 | ... |
| 2971 | ||
| 2972 | 218 char The Logical Company bus Unibus/Qbus adapters | |
| 2973 | 0 = /dev/logicalco/bci/0 First bus adapter | |
| 2974 | 1 = /dev/logicalco/bci/1 First bus adapter | |
| 2975 | ... | |
| 2976 | ||
| 2977 | 219 char The Logical Company DCI-1300 digital I/O card | |
| 2978 | 0 = /dev/logicalco/dci1300/0 First DCI-1300 card | |
| 2979 | 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card | |
| 2980 | ... | |
| 2981 | ||
| 2982 | 220 char Myricom Myrinet "GM" board | |
| 2983 | 0 = /dev/myricom/gm0 First Myrinet GM board | |
| 2984 | 1 = /dev/myricom/gmp0 First board "root access" | |
| 2985 | 2 = /dev/myricom/gm1 Second Myrinet GM board | |
| 2986 | 3 = /dev/myricom/gmp1 Second board "root access" | |
| 2987 | ... | |
| 2988 | ||
| 2989 | 221 char VME bus | |
| 2990 | 0 = /dev/bus/vme/m0 First master image | |
| 2991 | 1 = /dev/bus/vme/m1 Second master image | |
| 2992 | 2 = /dev/bus/vme/m2 Third master image | |
| 2993 | 3 = /dev/bus/vme/m3 Fourth master image | |
| 2994 | 4 = /dev/bus/vme/s0 First slave image | |
| 2995 | 5 = /dev/bus/vme/s1 Second slave image | |
| 2996 | 6 = /dev/bus/vme/s2 Third slave image | |
| 2997 | 7 = /dev/bus/vme/s3 Fourth slave image | |
| 2998 | 8 = /dev/bus/vme/ctl Control | |
| 2999 | ||
| 3000 | It is expected that all VME bus drivers will use the | |
| 3001 | same interface. For interface documentation see | |
| 3002 | http://www.vmelinux.org/. | |
| 3003 | ||
| 3004 | 224 char A2232 serial card | |
| 3005 | 0 = /dev/ttyY0 First A2232 port | |
| 3006 | 1 = /dev/ttyY1 Second A2232 port | |
| 3007 | ... | |
| 3008 | ||
| 3009 | 225 char A2232 serial card (alternate devices) | |
| 3010 | 0 = /dev/cuy0 Callout device for ttyY0 | |
| 3011 | 1 = /dev/cuy1 Callout device for ttyY1 | |
| 3012 | ... | |
| 3013 | ||
| 3014 | 226 char Direct Rendering Infrastructure (DRI) | |
| 3015 | 0 = /dev/dri/card0 First graphics card | |
| 3016 | 1 = /dev/dri/card1 Second graphics card | |
| 3017 | ... | |
| 3018 | ||
| 3019 | 227 char IBM 3270 terminal Unix tty access | |
| 3020 | 1 = /dev/3270/tty1 First 3270 terminal | |
| 3021 | 2 = /dev/3270/tty2 Seconds 3270 terminal | |
| 3022 | ... | |
| 3023 | ||
| 3024 | 228 char IBM 3270 terminal block-mode access | |
| 3025 | 0 = /dev/3270/tub Controlling interface | |
| 3026 | 1 = /dev/3270/tub1 First 3270 terminal | |
| 3027 | 2 = /dev/3270/tub2 Second 3270 terminal | |
| 3028 | ... | |
| 3029 | ||
| 30aaa5c6 TM |
3030 | 229 char IBM iSeries/pSeries virtual console |
| 3031 | 0 = /dev/hvc0 First console port | |
| 3032 | 1 = /dev/hvc1 Second console port | |
| 1da177e4 LT |
3033 | ... |
| 3034 | ||
| 3035 | 230 char IBM iSeries virtual tape | |
| 3036 | 0 = /dev/iseries/vt0 First virtual tape, mode 0 | |
| 3037 | 1 = /dev/iseries/vt1 Second virtual tape, mode 0 | |
| 3038 | ... | |
| 3039 | 32 = /dev/iseries/vt0l First virtual tape, mode 1 | |
| 3040 | 33 = /dev/iseries/vt1l Second virtual tape, mode 1 | |
| 3041 | ... | |
| 3042 | 64 = /dev/iseries/vt0m First virtual tape, mode 2 | |
| 3043 | 65 = /dev/iseries/vt1m Second virtual tape, mode 2 | |
| 3044 | ... | |
| 3045 | 96 = /dev/iseries/vt0a First virtual tape, mode 3 | |
| 3046 | 97 = /dev/iseries/vt1a Second virtual tape, mode 3 | |
| 3047 | ... | |
| 3048 | 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind | |
| 3049 | 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind | |
| 3050 | ... | |
| 3051 | 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind | |
| 3052 | 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind | |
| 3053 | ... | |
| 3054 | 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind | |
| 3055 | 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind | |
| 3056 | ... | |
| 3057 | 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind | |
| 3058 | 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind | |
| 3059 | ... | |
| 3060 | ||
| 3061 | "No rewind" refers to the omission of the default | |
| 3062 | automatic rewind on device close. The MTREW or MTOFFL | |
| 3063 | ioctl()'s can be used to rewind the tape regardless of | |
| 3064 | the device used to access it. | |
| 3065 | ||
| 11420211 | 3066 | 231 char InfiniBand |
| 1da177e4 LT |
3067 | 0 = /dev/infiniband/umad0 |
| 3068 | 1 = /dev/infiniband/umad1 | |
| 11420211 JE |
3069 | ... |
| 3070 | 63 = /dev/infiniband/umad63 63rd InfiniBandMad device | |
| 3071 | 64 = /dev/infiniband/issm0 First InfiniBand IsSM device | |
| 3072 | 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device | |
| 3073 | ... | |
| 3074 | 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device | |
| 3075 | 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device | |
| 3076 | 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device | |
| 3077 | ... | |
| 3078 | 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device | |
| 3079 | ||
| 3080 | 232 char Biometric Devices | |
| 3081 | 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device | |
| 3082 | 1 = /dev/biometric/sensor0/iris first iris sensor on first device | |
| 3083 | 2 = /dev/biometric/sensor0/retina first retina sensor on first device | |
| 3084 | 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device | |
| 3085 | 4 = /dev/biometric/sensor0/facial first facial sensor on first device | |
| 3086 | 5 = /dev/biometric/sensor0/hand first hand sensor on first device | |
| 3087 | ... | |
| 3088 | 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device | |
| 3089 | ... | |
| 3090 | 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device | |
| 3091 | ... | |
| 1da177e4 | 3092 | |
| 11420211 JE |
3093 | 233 char PathScale InfiniPath interconnect |
| 3094 | 0 = /dev/ipath Primary device for programs (any unit) | |
| 3095 | 1 = /dev/ipath0 Access specifically to unit 0 | |
| 3096 | 2 = /dev/ipath1 Access specifically to unit 1 | |
| 3097 | ... | |
| 3098 | 4 = /dev/ipath3 Access specifically to unit 3 | |
| 3099 | 129 = /dev/ipath_sma Device used by Subnet Management Agent | |
| 3100 | 130 = /dev/ipath_diag Device used by diagnostics programs | |
| 3101 | ||
| 3102 | 234-239 UNASSIGNED | |
| 1da177e4 LT |
3103 | |
| 3104 | 240-254 char LOCAL/EXPERIMENTAL USE | |
| 30aaa5c6 | 3105 | |
| 1da177e4 LT |
3106 | 240-254 block LOCAL/EXPERIMENTAL USE |
| 3107 | Allocated for local/experimental use. For devices not | |
| 3108 | assigned official numbers, these ranges should be | |
| 3109 | used in order to avoid conflicting with future assignments. | |
| 3110 | ||
| 3111 | 255 char RESERVED | |
| 30aaa5c6 | 3112 | |
| 1da177e4 LT |
3113 | 255 block RESERVED |
| 3114 | ||
| 3115 | This major is reserved to assist the expansion to a | |
| 3116 | larger number space. No device nodes with this major | |
| 3117 | should ever be created on the filesystem. | |
| 992caacf | 3118 | (This is probably not true anymore, but I'll leave it |
| 11420211 JE |
3119 | for now /Torben) |
| 3120 | ||
| 3121 | ---LARGE MAJORS!!!!!--- | |
| 3122 | ||
| 3123 | 256 char Equinox SST multi-port serial boards | |
| 3124 | 0 = /dev/ttyEQ0 First serial port on first Equinox SST board | |
| 3125 | 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board | |
| 3126 | 128 = /dev/ttyEQ128 First serial port on second Equinox SST board | |
| 3127 | ... | |
| 3128 | 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board | |
| 3129 | ||
| 3130 | 256 block Resident Flash Disk Flash Translation Layer | |
| 3131 | 0 = /dev/rfda First RFD FTL layer | |
| 3132 | 16 = /dev/rfdb Second RFD FTL layer | |
| 3133 | ... | |
| 3134 | 240 = /dev/rfdp 16th RFD FTL layer | |
| 3135 | ||
| a4521948 JE |
3136 | 257 char Phoenix Technologies Cryptographic Services Driver |
| 3137 | 0 = /dev/ptlsec Crypto Services Driver | |
| 3138 | ||
| 30aaa5c6 TM |
3139 | 257 block SSFDC Flash Translation Layer filesystem |
| 3140 | 0 = /dev/ssfdca First SSFDC layer | |
| 3141 | 8 = /dev/ssfdcb Second SSFDC layer | |
| 3142 | 16 = /dev/ssfdcc Third SSFDC layer | |
| 3143 | 24 = /dev/ssfdcd 4th SSFDC layer | |
| 3144 | 32 = /dev/ssfdce 5th SSFDC layer | |
| 3145 | 40 = /dev/ssfdcf 6th SSFDC layer | |
| 3146 | 48 = /dev/ssfdcg 7th SSFDC layer | |
| 3147 | 56 = /dev/ssfdch 8th SSFDC layer | |
| 3148 | ||
| 3149 | 258 block ROM/Flash read-only translation layer | |
| 3150 | 0 = /dev/blockrom0 First ROM card's translation layer interface | |
| 3151 | 1 = /dev/blockrom1 Second ROM card's translation layer interface | |
| 3152 | ... | |
| 1da177e4 | 3153 | |
| 04c860c1 AC |
3154 | 259 block Block Extended Major |
| 3155 | Used dynamically to hold additional partition minor | |
| 3156 | numbers and allow large numbers of partitions per device | |
| 3157 | ||
| 3158 | 259 char FPGA configuration interfaces | |
| 3159 | 0 = /dev/icap0 First Xilinx internal configuration | |
| 3160 | 1 = /dev/icap1 Second Xilinx internal configuration | |
| 3161 | ||
| 71969fd9 BH |
3162 | 260 char OSD (Object-based-device) SCSI Device |
| 3163 | 0 = /dev/osd0 First OSD Device | |
| 3164 | 1 = /dev/osd1 Second OSD Device | |
| 3165 | ... | |
| 3166 | 255 = /dev/osd255 256th OSD Device | |
| 3167 | ||
| 1da177e4 LT |
3168 | **** ADDITIONAL /dev DIRECTORY ENTRIES |
| 3169 | ||
| 3170 | This section details additional entries that should or may exist in | |
| 3171 | the /dev directory. It is preferred that symbolic links use the same | |
| 3172 | form (absolute or relative) as is indicated here. Links are | |
| 3173 | classified as "hard" or "symbolic" depending on the preferred type of | |
| 3174 | link; if possible, the indicated type of link should be used. | |
| 3175 | ||
| 3176 | ||
| 3177 | Compulsory links | |
| 3178 | ||
| 3179 | These links should exist on all systems: | |
| 3180 | ||
| 3181 | /dev/fd /proc/self/fd symbolic File descriptors | |
| 3182 | /dev/stdin fd/0 symbolic stdin file descriptor | |
| 3183 | /dev/stdout fd/1 symbolic stdout file descriptor | |
| 3184 | /dev/stderr fd/2 symbolic stderr file descriptor | |
| 3185 | /dev/nfsd socksys symbolic Required by iBCS-2 | |
| 3186 | /dev/X0R null symbolic Required by iBCS-2 | |
| 3187 | ||
| 3188 | Note: /dev/X0R is <letter X>-<digit 0>-<letter R>. | |
| 3189 | ||
| 3190 | Recommended links | |
| 3191 | ||
| 3192 | It is recommended that these links exist on all systems: | |
| 3193 | ||
| 3194 | /dev/core /proc/kcore symbolic Backward compatibility | |
| 3195 | /dev/ramdisk ram0 symbolic Backward compatibility | |
| 3196 | /dev/ftape qft0 symbolic Backward compatibility | |
| 3197 | /dev/bttv0 video0 symbolic Backward compatibility | |
| 3198 | /dev/radio radio0 symbolic Backward compatibility | |
| 3199 | /dev/i2o* /dev/i2o/* symbolic Backward compatibility | |
| 3200 | /dev/scd? sr? hard Alternate SCSI CD-ROM name | |
| 3201 | ||
| 3202 | Locally defined links | |
| 3203 | ||
| 3204 | The following links may be established locally to conform to the | |
| 3205 | configuration of the system. This is merely a tabulation of existing | |
| 3206 | practice, and does not constitute a recommendation. However, if they | |
| 3207 | exist, they should have the following uses. | |
| 3208 | ||
| 3209 | /dev/mouse mouse port symbolic Current mouse device | |
| 3210 | /dev/tape tape device symbolic Current tape device | |
| 3211 | /dev/cdrom CD-ROM device symbolic Current CD-ROM device | |
| 3212 | /dev/cdwriter CD-writer symbolic Current CD-writer device | |
| 3213 | /dev/scanner scanner symbolic Current scanner device | |
| 3214 | /dev/modem modem port symbolic Current dialout device | |
| 3215 | /dev/root root device symbolic Current root filesystem | |
| 3216 | /dev/swap swap device symbolic Current swap device | |
| 3217 | ||
| 3218 | /dev/modem should not be used for a modem which supports dialin as | |
| 3219 | well as dialout, as it tends to cause lock file problems. If it | |
| 3220 | exists, /dev/modem should point to the appropriate primary TTY device | |
| 3221 | (the use of the alternate callout devices is deprecated). | |
| 3222 | ||
| 3223 | For SCSI devices, /dev/tape and /dev/cdrom should point to the | |
| 3224 | ``cooked'' devices (/dev/st* and /dev/sr*, respectively), whereas | |
| 3225 | /dev/cdwriter and /dev/scanner should point to the appropriate generic | |
| 3226 | SCSI devices (/dev/sg*). | |
| 3227 | ||
| 3228 | /dev/mouse may point to a primary serial TTY device, a hardware mouse | |
| 3229 | device, or a socket for a mouse driver program (e.g. /dev/gpmdata). | |
| 3230 | ||
| 3231 | Sockets and pipes | |
| 3232 | ||
| 3233 | Non-transient sockets and named pipes may exist in /dev. Common entries are: | |
| 3234 | ||
| 3235 | /dev/printer socket lpd local socket | |
| 3236 | /dev/log socket syslog local socket | |
| 3237 | /dev/gpmdata socket gpm mouse multiplexer | |
| 3238 | ||
| 3239 | Mount points | |
| 3240 | ||
| 3241 | The following names are reserved for mounting special filesystems | |
| 3242 | under /dev. These special filesystems provide kernel interfaces that | |
| 3243 | cannot be provided with standard device nodes. | |
| 3244 | ||
| 3245 | /dev/pts devpts PTY slave filesystem | |
| 3246 | /dev/shm tmpfs POSIX shared memory maintenance access | |
| 3247 | ||
| 3248 | **** TERMINAL DEVICES | |
| 3249 | ||
| 3250 | Terminal, or TTY devices are a special class of character devices. A | |
| 3251 | terminal device is any device that could act as a controlling terminal | |
| 3252 | for a session; this includes virtual consoles, serial ports, and | |
| 3253 | pseudoterminals (PTYs). | |
| 3254 | ||
| 3255 | All terminal devices share a common set of capabilities known as line | |
| fff9289b | 3256 | disciplines; these include the common terminal line discipline as well |
| 1da177e4 LT |
3257 | as SLIP and PPP modes. |
| 3258 | ||
| 3259 | All terminal devices are named similarly; this section explains the | |
| 3260 | naming and use of the various types of TTYs. Note that the naming | |
| 3261 | conventions include several historical warts; some of these are | |
| 3262 | Linux-specific, some were inherited from other systems, and some | |
| 3263 | reflect Linux outgrowing a borrowed convention. | |
| 3264 | ||
| 3265 | A hash mark (#) in a device name is used here to indicate a decimal | |
| 3266 | number without leading zeroes. | |
| 3267 | ||
| 3268 | Virtual consoles and the console device | |
| 3269 | ||
| 3270 | Virtual consoles are full-screen terminal displays on the system video | |
| 3271 | monitor. Virtual consoles are named /dev/tty#, with numbering | |
| 3272 | starting at /dev/tty1; /dev/tty0 is the current virtual console. | |
| 3273 | /dev/tty0 is the device that should be used to access the system video | |
| 3274 | card on those architectures for which the frame buffer devices | |
| 3275 | (/dev/fb*) are not applicable. Do not use /dev/console | |
| 3276 | for this purpose. | |
| 3277 | ||
| 3278 | The console device, /dev/console, is the device to which system | |
| 3279 | messages should be sent, and on which logins should be permitted in | |
| 3280 | single-user mode. Starting with Linux 2.1.71, /dev/console is managed | |
| 3281 | by the kernel; for previous versions it should be a symbolic link to | |
| 3282 | either /dev/tty0, a specific virtual console such as /dev/tty1, or to | |
| 3283 | a serial port primary (tty*, not cu*) device, depending on the | |
| 3284 | configuration of the system. | |
| 3285 | ||
| 3286 | Serial ports | |
| 3287 | ||
| 3288 | Serial ports are RS-232 serial ports and any device which simulates | |
| 3289 | one, either in hardware (such as internal modems) or in software (such | |
| 3290 | as the ISDN driver.) Under Linux, each serial ports has two device | |
| 3291 | names, the primary or callin device and the alternate or callout one. | |
| 3292 | Each kind of device is indicated by a different letter. For any | |
| 3293 | letter X, the names of the devices are /dev/ttyX# and /dev/cux#, | |
| 3294 | respectively; for historical reasons, /dev/ttyS# and /dev/ttyC# | |
| 3295 | correspond to /dev/cua# and /dev/cub#. In the future, it should be | |
| 3296 | expected that multiple letters will be used; all letters will be upper | |
| 3297 | case for the "tty" device (e.g. /dev/ttyDP#) and lower case for the | |
| 3298 | "cu" device (e.g. /dev/cudp#). | |
| 3299 | ||
| 3300 | The names /dev/ttyQ# and /dev/cuq# are reserved for local use. | |
| 3301 | ||
| 3302 | The alternate devices provide for kernel-based exclusion and somewhat | |
| 3303 | different defaults than the primary devices. Their main purpose is to | |
| 3304 | allow the use of serial ports with programs with no inherent or broken | |
| 3305 | support for serial ports. Their use is deprecated, and they may be | |
| 3306 | removed from a future version of Linux. | |
| 3307 | ||
| 3308 | Arbitration of serial ports is provided by the use of lock files with | |
| 3309 | the names /var/lock/LCK..ttyX#. The contents of the lock file should | |
| 3310 | be the PID of the locking process as an ASCII number. | |
| 3311 | ||
| 3312 | It is common practice to install links such as /dev/modem | |
| 3313 | which point to serial ports. In order to ensure proper locking in the | |
| 3314 | presence of these links, it is recommended that software chase | |
| 3315 | symlinks and lock all possible names; additionally, it is recommended | |
| 3316 | that a lock file be installed with the corresponding alternate | |
| 3317 | device. In order to avoid deadlocks, it is recommended that the locks | |
| 3318 | are acquired in the following order, and released in the reverse: | |
| 3319 | ||
| 3320 | 1. The symbolic link name, if any (/var/lock/LCK..modem) | |
| 3321 | 2. The "tty" name (/var/lock/LCK..ttyS2) | |
| 3322 | 3. The alternate device name (/var/lock/LCK..cua2) | |
| 3323 | ||
| 3324 | In the case of nested symbolic links, the lock files should be | |
| 3325 | installed in the order the symlinks are resolved. | |
| 3326 | ||
| 3327 | Under no circumstances should an application hold a lock while waiting | |
| 3328 | for another to be released. In addition, applications which attempt | |
| 3329 | to create lock files for the corresponding alternate device names | |
| 3330 | should take into account the possibility of being used on a non-serial | |
| 3331 | port TTY, for which no alternate device would exist. | |
| 3332 | ||
| 3333 | Pseudoterminals (PTYs) | |
| 3334 | ||
| 3335 | Pseudoterminals, or PTYs, are used to create login sessions or provide | |
| fff9289b | 3336 | other capabilities requiring a TTY line discipline (including SLIP or |
| 1da177e4 LT |
3337 | PPP capability) to arbitrary data-generation processes. Each PTY has |
| 3338 | a master side, named /dev/pty[p-za-e][0-9a-f], and a slave side, named | |
| 3339 | /dev/tty[p-za-e][0-9a-f]. The kernel arbitrates the use of PTYs by | |
| 3340 | allowing each master side to be opened only once. | |
| 3341 | ||
| 3342 | Once the master side has been opened, the corresponding slave device | |
| 3343 | can be used in the same manner as any TTY device. The master and | |
| 3344 | slave devices are connected by the kernel, generating the equivalent | |
| 3345 | of a bidirectional pipe with TTY capabilities. | |
| 3346 | ||
| 3347 | Recent versions of the Linux kernels and GNU libc contain support for | |
| 3348 | the System V/Unix98 naming scheme for PTYs, which assigns a common | |
| 3349 | device, /dev/ptmx, to all the masters (opening it will automatically | |
| 3350 | give you a previously unassigned PTY) and a subdirectory, /dev/pts, | |
| 3351 | for the slaves; the slaves are named with decimal integers (/dev/pts/# | |
| 3352 | in our notation). This removes the problem of exhausting the | |
| 3353 | namespace and enables the kernel to automatically create the device | |
| 3354 | nodes for the slaves on demand using the "devpts" filesystem. | |
| 3355 |