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Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[linux-2.6-block.git] / Documentation / admin-guide / devices.txt
CommitLineData
07c7e30c
JN		 1 0 Unnamed devices (e.g. non-device mounts)
2 0 = reserved as null device number
3 See block major 144, 145, 146 for expansion areas.
4
5 1 char Memory devices
6 1 = /dev/mem Physical memory access
7 2 = /dev/kmem Kernel virtual memory access
8 3 = /dev/null Null device
9 4 = /dev/port I/O port access
10 5 = /dev/zero Null byte source
11 6 = /dev/core OBSOLETE - replaced by /proc/kcore
12 7 = /dev/full Returns ENOSPC on write
13 8 = /dev/random Nondeterministic random number gen.
14 9 = /dev/urandom Faster, less secure random number gen.
15 10 = /dev/aio Asynchronous I/O notification interface
16 11 = /dev/kmsg Writes to this come out as printk's, reads
17 export the buffered printk records.
18 12 = /dev/oldmem OBSOLETE - replaced by /proc/vmcore
19
20 1 block RAM disk
21 0 = /dev/ram0 First RAM disk
22 1 = /dev/ram1 Second RAM disk
23 ...
24 250 = /dev/initrd Initial RAM disk
25
26 Older kernels had /dev/ramdisk (1, 1) here.
27 /dev/initrd refers to a RAM disk which was preloaded
28 by the boot loader; newer kernels use /dev/ram0 for
29 the initrd.
30
31 2 char Pseudo-TTY masters
32 0 = /dev/ptyp0 First PTY master
33 1 = /dev/ptyp1 Second PTY master
34 ...
35 255 = /dev/ptyef 256th PTY master
36
37 Pseudo-tty's are named as follows:
38 * Masters are "pty", slaves are "tty";
39 * the fourth letter is one of pqrstuvwxyzabcde indicating
40 the 1st through 16th series of 16 pseudo-ttys each, and
41 * the fifth letter is one of 0123456789abcdef indicating
42 the position within the series.
43
44 These are the old-style (BSD) PTY devices; Unix98
45 devices are on major 128 and above and use the PTY
46 master multiplex (/dev/ptmx) to acquire a PTY on
47 demand.
48
49 2 block Floppy disks
50 0 = /dev/fd0 Controller 0, drive 0, autodetect
51 1 = /dev/fd1 Controller 0, drive 1, autodetect
52 2 = /dev/fd2 Controller 0, drive 2, autodetect
53 3 = /dev/fd3 Controller 0, drive 3, autodetect
54 128 = /dev/fd4 Controller 1, drive 0, autodetect
55 129 = /dev/fd5 Controller 1, drive 1, autodetect
56 130 = /dev/fd6 Controller 1, drive 2, autodetect
57 131 = /dev/fd7 Controller 1, drive 3, autodetect
58
59 To specify format, add to the autodetect device number:
60 0 = /dev/fd? Autodetect format
61 4 = /dev/fd?d360 5.25" 360K in a 360K drive(1)
62 20 = /dev/fd?h360 5.25" 360K in a 1200K drive(1)
63 48 = /dev/fd?h410 5.25" 410K in a 1200K drive
64 64 = /dev/fd?h420 5.25" 420K in a 1200K drive
65 24 = /dev/fd?h720 5.25" 720K in a 1200K drive
66 80 = /dev/fd?h880 5.25" 880K in a 1200K drive(1)
67 8 = /dev/fd?h1200 5.25" 1200K in a 1200K drive(1)
68 40 = /dev/fd?h1440 5.25" 1440K in a 1200K drive(1)
69 56 = /dev/fd?h1476 5.25" 1476K in a 1200K drive
70 72 = /dev/fd?h1494 5.25" 1494K in a 1200K drive
71 92 = /dev/fd?h1600 5.25" 1600K in a 1200K drive(1)
72
73 12 = /dev/fd?u360 3.5" 360K Double Density(2)
74 16 = /dev/fd?u720 3.5" 720K Double Density(1)
75 120 = /dev/fd?u800 3.5" 800K Double Density(2)
76 52 = /dev/fd?u820 3.5" 820K Double Density
77 68 = /dev/fd?u830 3.5" 830K Double Density
78 84 = /dev/fd?u1040 3.5" 1040K Double Density(1)
79 88 = /dev/fd?u1120 3.5" 1120K Double Density(1)
80 28 = /dev/fd?u1440 3.5" 1440K High Density(1)
81 124 = /dev/fd?u1600 3.5" 1600K High Density(1)
82 44 = /dev/fd?u1680 3.5" 1680K High Density(3)
83 60 = /dev/fd?u1722 3.5" 1722K High Density
84 76 = /dev/fd?u1743 3.5" 1743K High Density
85 96 = /dev/fd?u1760 3.5" 1760K High Density
86 116 = /dev/fd?u1840 3.5" 1840K High Density(3)
87 100 = /dev/fd?u1920 3.5" 1920K High Density(1)
88 32 = /dev/fd?u2880 3.5" 2880K Extra Density(1)
89 104 = /dev/fd?u3200 3.5" 3200K Extra Density
90 108 = /dev/fd?u3520 3.5" 3520K Extra Density
91 112 = /dev/fd?u3840 3.5" 3840K Extra Density(1)
92
93 36 = /dev/fd?CompaQ Compaq 2880K drive; obsolete?
94
95 (1) Autodetectable format
96 (2) Autodetectable format in a Double Density (720K) drive only
97 (3) Autodetectable format in a High Density (1440K) drive only
98
99 NOTE: The letter in the device name (d, q, h or u)
100 signifies the type of drive: 5.25" Double Density (d),
101 5.25" Quad Density (q), 5.25" High Density (h) or 3.5"
102 (any model, u). The use of the capital letters D, H
103 and E for the 3.5" models have been deprecated, since
104 the drive type is insignificant for these devices.
105
106 3 char Pseudo-TTY slaves
107 0 = /dev/ttyp0 First PTY slave
108 1 = /dev/ttyp1 Second PTY slave
109 ...
110 255 = /dev/ttyef 256th PTY slave
111
112 These are the old-style (BSD) PTY devices; Unix98
113 devices are on major 136 and above.
114
115 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
116 0 = /dev/hda Master: whole disk (or CD-ROM)
117 64 = /dev/hdb Slave: whole disk (or CD-ROM)
118
119 For partitions, add to the whole disk device number:
120 0 = /dev/hd? Whole disk
121 1 = /dev/hd?1 First partition
122 2 = /dev/hd?2 Second partition
123 ...
124 63 = /dev/hd?63 63rd partition
125
126 For Linux/i386, partitions 1-4 are the primary
127 partitions, and 5 and above are logical partitions.
128 Other versions of Linux use partitioning schemes
129 appropriate to their respective architectures.
130
131 4 char TTY devices
132 0 = /dev/tty0 Current virtual console
133
134 1 = /dev/tty1 First virtual console
135 ...
136 63 = /dev/tty63 63rd virtual console
137 64 = /dev/ttyS0 First UART serial port
138 ...
139 255 = /dev/ttyS191 192nd UART serial port
140
141 UART serial ports refer to 8250/16450/16550 series devices.
142
143 Older versions of the Linux kernel used this major
144 number for BSD PTY devices. As of Linux 2.1.115, this
145 is no longer supported. Use major numbers 2 and 3.
146
147 4 block Aliases for dynamically allocated major devices to be used
148 when its not possible to create the real device nodes
149 because the root filesystem is mounted read-only.
150
151 0 = /dev/root
152
153 5 char Alternate TTY devices
154 0 = /dev/tty Current TTY device
155 1 = /dev/console System console
156 2 = /dev/ptmx PTY master multiplex
157 3 = /dev/ttyprintk User messages via printk TTY device
158 64 = /dev/cua0 Callout device for ttyS0
159 ...
160 255 = /dev/cua191 Callout device for ttyS191
161
162 (5,1) is /dev/console starting with Linux 2.1.71. See
163 the section on terminal devices for more information
164 on /dev/console.
165
166 6 char Parallel printer devices
167 0 = /dev/lp0 Parallel printer on parport0
168 1 = /dev/lp1 Parallel printer on parport1
169 ...
170
171 Current Linux kernels no longer have a fixed mapping
172 between parallel ports and I/O addresses. Instead,
173 they are redirected through the parport multiplex layer.
174
175 7 char Virtual console capture devices
13aa0a12
NP		 176 0 = /dev/vcs Current vc text (glyph) contents
177 1 = /dev/vcs1 tty1 text (glyph) contents
07c7e30c 178 ...
13aa0a12
NP		 179 63 = /dev/vcs63 tty63 text (glyph) contents
180 64 = /dev/vcsu Current vc text (unicode) contents
181 65 = /dev/vcsu1 tty1 text (unicode) contents
07c7e30c 182 ...
13aa0a12
NP		 183 127 = /dev/vcsu63 tty63 text (unicode) contents
184 128 = /dev/vcsa Current vc text/attribute (glyph) contents
185 129 = /dev/vcsa1 tty1 text/attribute (glyph) contents
186 ...
187 191 = /dev/vcsa63 tty63 text/attribute (glyph) contents
07c7e30c
JN		 188
189 NOTE: These devices permit both read and write access.
190
191 7 block Loopback devices
192 0 = /dev/loop0 First loop device
193 1 = /dev/loop1 Second loop device
194 ...
195
196 The loop devices are used to mount filesystems not
197 associated with block devices. The binding to the
198 loop devices is handled by mount(8) or losetup(8).
199
200 8 block SCSI disk devices (0-15)
201 0 = /dev/sda First SCSI disk whole disk
202 16 = /dev/sdb Second SCSI disk whole disk
203 32 = /dev/sdc Third SCSI disk whole disk
204 ...
205 240 = /dev/sdp Sixteenth SCSI disk whole disk
206
207 Partitions are handled in the same way as for IDE
208 disks (see major number 3) except that the limit on
209 partitions is 15.
210
211 9 char SCSI tape devices
212 0 = /dev/st0 First SCSI tape, mode 0
213 1 = /dev/st1 Second SCSI tape, mode 0
214 ...
215 32 = /dev/st0l First SCSI tape, mode 1
216 33 = /dev/st1l Second SCSI tape, mode 1
217 ...
218 64 = /dev/st0m First SCSI tape, mode 2
219 65 = /dev/st1m Second SCSI tape, mode 2
220 ...
221 96 = /dev/st0a First SCSI tape, mode 3
222 97 = /dev/st1a Second SCSI tape, mode 3
223 ...
224 128 = /dev/nst0 First SCSI tape, mode 0, no rewind
225 129 = /dev/nst1 Second SCSI tape, mode 0, no rewind
226 ...
227 160 = /dev/nst0l First SCSI tape, mode 1, no rewind
228 161 = /dev/nst1l Second SCSI tape, mode 1, no rewind
229 ...
230 192 = /dev/nst0m First SCSI tape, mode 2, no rewind
231 193 = /dev/nst1m Second SCSI tape, mode 2, no rewind
232 ...
233 224 = /dev/nst0a First SCSI tape, mode 3, no rewind
234 225 = /dev/nst1a Second SCSI tape, mode 3, no rewind
235 ...
236
237 "No rewind" refers to the omission of the default
238 automatic rewind on device close. The MTREW or MTOFFL
239 ioctl()'s can be used to rewind the tape regardless of
240 the device used to access it.
241
242 9 block Metadisk (RAID) devices
243 0 = /dev/md0 First metadisk group
244 1 = /dev/md1 Second metadisk group
245 ...
246
247 The metadisk driver is used to span a
248 filesystem across multiple physical disks.
249
250 10 char Non-serial mice, misc features
251 0 = /dev/logibm Logitech bus mouse
252 1 = /dev/psaux PS/2-style mouse port
253 2 = /dev/inportbm Microsoft Inport bus mouse
254 3 = /dev/atibm ATI XL bus mouse
255 4 = /dev/jbm J-mouse
256 4 = /dev/amigamouse Amiga mouse (68k/Amiga)
257 5 = /dev/atarimouse Atari mouse
258 6 = /dev/sunmouse Sun mouse
259 7 = /dev/amigamouse1 Second Amiga mouse
260 8 = /dev/smouse Simple serial mouse driver
261 9 = /dev/pc110pad IBM PC-110 digitizer pad
262 10 = /dev/adbmouse Apple Desktop Bus mouse
263 11 = /dev/vrtpanel Vr41xx embedded touch panel
264 13 = /dev/vpcmouse Connectix Virtual PC Mouse
265 14 = /dev/touchscreen/ucb1x00 UCB 1x00 touchscreen
266 15 = /dev/touchscreen/mk712 MK712 touchscreen
267 128 = /dev/beep Fancy beep device
268 129 =
269 130 = /dev/watchdog Watchdog timer port
270 131 = /dev/temperature Machine internal temperature
271 132 = /dev/hwtrap Hardware fault trap
272 133 = /dev/exttrp External device trap
273 134 = /dev/apm_bios Advanced Power Management BIOS
274 135 = /dev/rtc Real Time Clock
275 137 = /dev/vhci Bluetooth virtual HCI driver
276 139 = /dev/openprom SPARC OpenBoot PROM
277 140 = /dev/relay8 Berkshire Products Octal relay card
278 141 = /dev/relay16 Berkshire Products ISO-16 relay card
279 142 =
280 143 = /dev/pciconf PCI configuration space
281 144 = /dev/nvram Non-volatile configuration RAM
282 145 = /dev/hfmodem Soundcard shortwave modem control
283 146 = /dev/graphics Linux/SGI graphics device
284 147 = /dev/opengl Linux/SGI OpenGL pipe
285 148 = /dev/gfx Linux/SGI graphics effects device
286 149 = /dev/input/mouse Linux/SGI Irix emulation mouse
287 150 = /dev/input/keyboard Linux/SGI Irix emulation keyboard
288 151 = /dev/led Front panel LEDs
289 152 = /dev/kpoll Kernel Poll Driver
290 153 = /dev/mergemem Memory merge device
291 154 = /dev/pmu Macintosh PowerBook power manager
292 155 = /dev/isictl MultiTech ISICom serial control
293 156 = /dev/lcd Front panel LCD display
294 157 = /dev/ac Applicom Intl Profibus card
295 158 = /dev/nwbutton Netwinder external button
296 159 = /dev/nwdebug Netwinder debug interface
297 160 = /dev/nwflash Netwinder flash memory
298 161 = /dev/userdma User-space DMA access
299 162 = /dev/smbus System Management Bus
300 163 = /dev/lik Logitech Internet Keyboard
301 164 = /dev/ipmo Intel Intelligent Platform Management
302 165 = /dev/vmmon VMware virtual machine monitor
303 166 = /dev/i2o/ctl I2O configuration manager
304 167 = /dev/specialix_sxctl Specialix serial control
305 168 = /dev/tcldrv Technology Concepts serial control
306 169 = /dev/specialix_rioctl Specialix RIO serial control
307 170 = /dev/thinkpad/thinkpad IBM Thinkpad devices
308 171 = /dev/srripc QNX4 API IPC manager
309 172 = /dev/usemaclone Semaphore clone device
310 173 = /dev/ipmikcs Intelligent Platform Management
311 174 = /dev/uctrl SPARCbook 3 microcontroller
312 175 = /dev/agpgart AGP Graphics Address Remapping Table
313 176 = /dev/gtrsc Gorgy Timing radio clock
314 177 = /dev/cbm Serial CBM bus
315 178 = /dev/jsflash JavaStation OS flash SIMM
316 179 = /dev/xsvc High-speed shared-mem/semaphore service
317 180 = /dev/vrbuttons Vr41xx button input device
318 181 = /dev/toshiba Toshiba laptop SMM support
319 182 = /dev/perfctr Performance-monitoring counters
320 183 = /dev/hwrng Generic random number generator
321 184 = /dev/cpu/microcode CPU microcode update interface
322 186 = /dev/atomicps Atomic shapshot of process state data
323 187 = /dev/irnet IrNET device
324 188 = /dev/smbusbios SMBus BIOS
325 189 = /dev/ussp_ctl User space serial port control
326 190 = /dev/crash Mission Critical Linux crash dump facility
327 191 = /dev/pcl181 <information missing>
328 192 = /dev/nas_xbus NAS xbus LCD/buttons access
329 193 = /dev/d7s SPARC 7-segment display
330 194 = /dev/zkshim Zero-Knowledge network shim control
331 195 = /dev/elographics/e2201 Elographics touchscreen E271-2201
332 196 = /dev/vfio/vfio VFIO userspace driver interface
333 197 = /dev/pxa3xx-gcu PXA3xx graphics controller unit driver
334 198 = /dev/sexec Signed executable interface
335 199 = /dev/scanners/cuecat :CueCat barcode scanner
336 200 = /dev/net/tun TAP/TUN network device
337 201 = /dev/button/gulpb Transmeta GULP-B buttons
338 202 = /dev/emd/ctl Enhanced Metadisk RAID (EMD) control
339 203 = /dev/cuse Cuse (character device in user-space)
340 204 = /dev/video/em8300 EM8300 DVD decoder control
341 205 = /dev/video/em8300_mv EM8300 DVD decoder video
342 206 = /dev/video/em8300_ma EM8300 DVD decoder audio
343 207 = /dev/video/em8300_sp EM8300 DVD decoder subpicture
344 208 = /dev/compaq/cpqphpc Compaq PCI Hot Plug Controller
345 209 = /dev/compaq/cpqrid Compaq Remote Insight Driver
346 210 = /dev/impi/bt IMPI coprocessor block transfer
347 211 = /dev/impi/smic IMPI coprocessor stream interface
348 212 = /dev/watchdogs/0 First watchdog device
349 213 = /dev/watchdogs/1 Second watchdog device
350 214 = /dev/watchdogs/2 Third watchdog device
351 215 = /dev/watchdogs/3 Fourth watchdog device
352 216 = /dev/fujitsu/apanel Fujitsu/Siemens application panel
353 217 = /dev/ni/natmotn National Instruments Motion
354 218 = /dev/kchuid Inter-process chuid control
355 219 = /dev/modems/mwave MWave modem firmware upload
356 220 = /dev/mptctl Message passing technology (MPT) control
357 221 = /dev/mvista/hssdsi Montavista PICMG hot swap system driver
358 222 = /dev/mvista/hasi Montavista PICMG high availability
359 223 = /dev/input/uinput User level driver support for input
360 224 = /dev/tpm TCPA TPM driver
361 225 = /dev/pps Pulse Per Second driver
362 226 = /dev/systrace Systrace device
363 227 = /dev/mcelog X86_64 Machine Check Exception driver
364 228 = /dev/hpet HPET driver
365 229 = /dev/fuse Fuse (virtual filesystem in user-space)
366 230 = /dev/midishare MidiShare driver
367 231 = /dev/snapshot System memory snapshot device
368 232 = /dev/kvm Kernel-based virtual machine (hardware virtualization extensions)
369 233 = /dev/kmview View-OS A process with a view
370 234 = /dev/btrfs-control Btrfs control device
371 235 = /dev/autofs Autofs control device
372 236 = /dev/mapper/control Device-Mapper control device
373 237 = /dev/loop-control Loopback control device
374 238 = /dev/vhost-net Host kernel accelerator for virtio net
375 239 = /dev/uhid User-space I/O driver support for HID subsystem
f4660cc9
SH		 376 240 = /dev/userio Serio driver testing device
377 241 = /dev/vhost-vsock Host kernel driver for virtio vsock
07c7e30c 378
f4660cc9 379 242-254 Reserved for local use
07c7e30c
JN		 380 255 Reserved for MISC_DYNAMIC_MINOR
381
382 11 char Raw keyboard device (Linux/SPARC only)
383 0 = /dev/kbd Raw keyboard device
384
385 11 char Serial Mux device (Linux/PA-RISC only)
386 0 = /dev/ttyB0 First mux port
387 1 = /dev/ttyB1 Second mux port
388 ...
389
390 11 block SCSI CD-ROM devices
391 0 = /dev/scd0 First SCSI CD-ROM
392 1 = /dev/scd1 Second SCSI CD-ROM
393 ...
394
395 The prefix /dev/sr (instead of /dev/scd) has been deprecated.
396
397 12 char QIC-02 tape
398 2 = /dev/ntpqic11 QIC-11, no rewind-on-close
399 3 = /dev/tpqic11 QIC-11, rewind-on-close
400 4 = /dev/ntpqic24 QIC-24, no rewind-on-close
401 5 = /dev/tpqic24 QIC-24, rewind-on-close
402 6 = /dev/ntpqic120 QIC-120, no rewind-on-close
403 7 = /dev/tpqic120 QIC-120, rewind-on-close
404 8 = /dev/ntpqic150 QIC-150, no rewind-on-close
405 9 = /dev/tpqic150 QIC-150, rewind-on-close
406
407 The device names specified are proposed -- if there
408 are "standard" names for these devices, please let me know.
409
410 12 block
411
412 13 char Input core
413 0 = /dev/input/js0 First joystick
414 1 = /dev/input/js1 Second joystick
415 ...
416 32 = /dev/input/mouse0 First mouse
417 33 = /dev/input/mouse1 Second mouse
418 ...
419 63 = /dev/input/mice Unified mouse
420 64 = /dev/input/event0 First event queue
421 65 = /dev/input/event1 Second event queue
422 ...
423
424 Each device type has 5 bits (32 minors).
425
426 13 block Previously used for the XT disk (/dev/xdN)
427 Deleted in kernel v3.9.
428
429 14 char Open Sound System (OSS)
430 0 = /dev/mixer Mixer control
431 1 = /dev/sequencer Audio sequencer
432 2 = /dev/midi00 First MIDI port
433 3 = /dev/dsp Digital audio
434 4 = /dev/audio Sun-compatible digital audio
435 6 =
436 7 = /dev/audioctl SPARC audio control device
437 8 = /dev/sequencer2 Sequencer -- alternate device
438 16 = /dev/mixer1 Second soundcard mixer control
439 17 = /dev/patmgr0 Sequencer patch manager
440 18 = /dev/midi01 Second MIDI port
441 19 = /dev/dsp1 Second soundcard digital audio
442 20 = /dev/audio1 Second soundcard Sun digital audio
443 33 = /dev/patmgr1 Sequencer patch manager
444 34 = /dev/midi02 Third MIDI port
445 50 = /dev/midi03 Fourth MIDI port
446
447 14 block
448
449 15 char Joystick
450 0 = /dev/js0 First analog joystick
451 1 = /dev/js1 Second analog joystick
452 ...
453 128 = /dev/djs0 First digital joystick
454 129 = /dev/djs1 Second digital joystick
455 ...
456 15 block Sony CDU-31A/CDU-33A CD-ROM
457 0 = /dev/sonycd Sony CDU-31a CD-ROM
458
459 16 char Non-SCSI scanners
460 0 = /dev/gs4500 Genius 4500 handheld scanner
461
462 16 block GoldStar CD-ROM
463 0 = /dev/gscd GoldStar CD-ROM
464
465 17 char OBSOLETE (was Chase serial card)
466 0 = /dev/ttyH0 First Chase port
467 1 = /dev/ttyH1 Second Chase port
468 ...
469 17 block Optics Storage CD-ROM
470 0 = /dev/optcd Optics Storage CD-ROM
471
472 18 char OBSOLETE (was Chase serial card - alternate devices)
473 0 = /dev/cuh0 Callout device for ttyH0
474 1 = /dev/cuh1 Callout device for ttyH1
475 ...
476 18 block Sanyo CD-ROM
477 0 = /dev/sjcd Sanyo CD-ROM
478
479 19 char Cyclades serial card
480 0 = /dev/ttyC0 First Cyclades port
481 ...
482 31 = /dev/ttyC31 32nd Cyclades port
483
484 19 block "Double" compressed disk
485 0 = /dev/double0 First compressed disk
486 ...
487 7 = /dev/double7 Eighth compressed disk
488 128 = /dev/cdouble0 Mirror of first compressed disk
489 ...
490 135 = /dev/cdouble7 Mirror of eighth compressed disk
491
492 See the Double documentation for the meaning of the
493 mirror devices.
494
495 20 char Cyclades serial card - alternate devices
496 0 = /dev/cub0 Callout device for ttyC0
497 ...
498 31 = /dev/cub31 Callout device for ttyC31
499
500 20 block Hitachi CD-ROM (under development)
501 0 = /dev/hitcd Hitachi CD-ROM
502
503 21 char Generic SCSI access
504 0 = /dev/sg0 First generic SCSI device
505 1 = /dev/sg1 Second generic SCSI device
506 ...
507
508 Most distributions name these /dev/sga, /dev/sgb...;
509 this sets an unnecessary limit of 26 SCSI devices in
510 the system and is counter to standard Linux
511 device-naming practice.
512
513 21 block Acorn MFM hard drive interface
514 0 = /dev/mfma First MFM drive whole disk
515 64 = /dev/mfmb Second MFM drive whole disk
516
517 This device is used on the ARM-based Acorn RiscPC.
518 Partitions are handled the same way as for IDE disks
519 (see major number 3).
520
521 22 char Digiboard serial card
522 0 = /dev/ttyD0 First Digiboard port
523 1 = /dev/ttyD1 Second Digiboard port
524 ...
525 22 block Second IDE hard disk/CD-ROM interface
526 0 = /dev/hdc Master: whole disk (or CD-ROM)
527 64 = /dev/hdd Slave: whole disk (or CD-ROM)
528
529 Partitions are handled the same way as for the first
530 interface (see major number 3).
531
532 23 char Digiboard serial card - alternate devices
533 0 = /dev/cud0 Callout device for ttyD0
534 1 = /dev/cud1 Callout device for ttyD1
535 ...
536 23 block Mitsumi proprietary CD-ROM
537 0 = /dev/mcd Mitsumi CD-ROM
538
539 24 char Stallion serial card
540 0 = /dev/ttyE0 Stallion port 0 card 0
541 1 = /dev/ttyE1 Stallion port 1 card 0
542 ...
543 64 = /dev/ttyE64 Stallion port 0 card 1
544 65 = /dev/ttyE65 Stallion port 1 card 1
545 ...
546 128 = /dev/ttyE128 Stallion port 0 card 2
547 129 = /dev/ttyE129 Stallion port 1 card 2
548 ...
549 192 = /dev/ttyE192 Stallion port 0 card 3
550 193 = /dev/ttyE193 Stallion port 1 card 3
551 ...
552 24 block Sony CDU-535 CD-ROM
553 0 = /dev/cdu535 Sony CDU-535 CD-ROM
554
555 25 char Stallion serial card - alternate devices
556 0 = /dev/cue0 Callout device for ttyE0
557 1 = /dev/cue1 Callout device for ttyE1
558 ...
559 64 = /dev/cue64 Callout device for ttyE64
560 65 = /dev/cue65 Callout device for ttyE65
561 ...
562 128 = /dev/cue128 Callout device for ttyE128
563 129 = /dev/cue129 Callout device for ttyE129
564 ...
565 192 = /dev/cue192 Callout device for ttyE192
566 193 = /dev/cue193 Callout device for ttyE193
567 ...
568 25 block First Matsushita (Panasonic/SoundBlaster) CD-ROM
569 0 = /dev/sbpcd0 Panasonic CD-ROM controller 0 unit 0
570 1 = /dev/sbpcd1 Panasonic CD-ROM controller 0 unit 1
571 2 = /dev/sbpcd2 Panasonic CD-ROM controller 0 unit 2
572 3 = /dev/sbpcd3 Panasonic CD-ROM controller 0 unit 3
573
574 26 char
575
576 26 block Second Matsushita (Panasonic/SoundBlaster) CD-ROM
577 0 = /dev/sbpcd4 Panasonic CD-ROM controller 1 unit 0
578 1 = /dev/sbpcd5 Panasonic CD-ROM controller 1 unit 1
579 2 = /dev/sbpcd6 Panasonic CD-ROM controller 1 unit 2
580 3 = /dev/sbpcd7 Panasonic CD-ROM controller 1 unit 3
581
582 27 char QIC-117 tape
583 0 = /dev/qft0 Unit 0, rewind-on-close
584 1 = /dev/qft1 Unit 1, rewind-on-close
585 2 = /dev/qft2 Unit 2, rewind-on-close
586 3 = /dev/qft3 Unit 3, rewind-on-close
587 4 = /dev/nqft0 Unit 0, no rewind-on-close
588 5 = /dev/nqft1 Unit 1, no rewind-on-close
589 6 = /dev/nqft2 Unit 2, no rewind-on-close
590 7 = /dev/nqft3 Unit 3, no rewind-on-close
591 16 = /dev/zqft0 Unit 0, rewind-on-close, compression
592 17 = /dev/zqft1 Unit 1, rewind-on-close, compression
593 18 = /dev/zqft2 Unit 2, rewind-on-close, compression
594 19 = /dev/zqft3 Unit 3, rewind-on-close, compression
595 20 = /dev/nzqft0 Unit 0, no rewind-on-close, compression
596 21 = /dev/nzqft1 Unit 1, no rewind-on-close, compression
597 22 = /dev/nzqft2 Unit 2, no rewind-on-close, compression
598 23 = /dev/nzqft3 Unit 3, no rewind-on-close, compression
599 32 = /dev/rawqft0 Unit 0, rewind-on-close, no file marks
600 33 = /dev/rawqft1 Unit 1, rewind-on-close, no file marks
601 34 = /dev/rawqft2 Unit 2, rewind-on-close, no file marks
602 35 = /dev/rawqft3 Unit 3, rewind-on-close, no file marks
603 36 = /dev/nrawqft0 Unit 0, no rewind-on-close, no file marks
604 37 = /dev/nrawqft1 Unit 1, no rewind-on-close, no file marks
605 38 = /dev/nrawqft2 Unit 2, no rewind-on-close, no file marks
606 39 = /dev/nrawqft3 Unit 3, no rewind-on-close, no file marks
607
608 27 block Third Matsushita (Panasonic/SoundBlaster) CD-ROM
609 0 = /dev/sbpcd8 Panasonic CD-ROM controller 2 unit 0
610 1 = /dev/sbpcd9 Panasonic CD-ROM controller 2 unit 1
611 2 = /dev/sbpcd10 Panasonic CD-ROM controller 2 unit 2
612 3 = /dev/sbpcd11 Panasonic CD-ROM controller 2 unit 3
613
614 28 char Stallion serial card - card programming
615 0 = /dev/staliomem0 First Stallion card I/O memory
616 1 = /dev/staliomem1 Second Stallion card I/O memory
617 2 = /dev/staliomem2 Third Stallion card I/O memory
618 3 = /dev/staliomem3 Fourth Stallion card I/O memory
619
620 28 char Atari SLM ACSI laser printer (68k/Atari)
621 0 = /dev/slm0 First SLM laser printer
622 1 = /dev/slm1 Second SLM laser printer
623 ...
624 28 block Fourth Matsushita (Panasonic/SoundBlaster) CD-ROM
625 0 = /dev/sbpcd12 Panasonic CD-ROM controller 3 unit 0
626 1 = /dev/sbpcd13 Panasonic CD-ROM controller 3 unit 1
627 2 = /dev/sbpcd14 Panasonic CD-ROM controller 3 unit 2
628 3 = /dev/sbpcd15 Panasonic CD-ROM controller 3 unit 3
629
630 28 block ACSI disk (68k/Atari)
631 0 = /dev/ada First ACSI disk whole disk
632 16 = /dev/adb Second ACSI disk whole disk
633 32 = /dev/adc Third ACSI disk whole disk
634 ...
635 240 = /dev/adp 16th ACSI disk whole disk
636
637 Partitions are handled in the same way as for IDE
638 disks (see major number 3) except that the limit on
639 partitions is 15, like SCSI.
640
641 29 char Universal frame buffer
642 0 = /dev/fb0 First frame buffer
643 1 = /dev/fb1 Second frame buffer
644 ...
645 31 = /dev/fb31 32nd frame buffer
646
647 29 block Aztech/Orchid/Okano/Wearnes CD-ROM
648 0 = /dev/aztcd Aztech CD-ROM
649
650 30 char iBCS-2 compatibility devices
651 0 = /dev/socksys Socket access
652 1 = /dev/spx SVR3 local X interface
653 32 = /dev/inet/ip Network access
654 33 = /dev/inet/icmp
655 34 = /dev/inet/ggp
656 35 = /dev/inet/ipip
657 36 = /dev/inet/tcp
658 37 = /dev/inet/egp
659 38 = /dev/inet/pup
660 39 = /dev/inet/udp
661 40 = /dev/inet/idp
662 41 = /dev/inet/rawip
663
664 Additionally, iBCS-2 requires the following links:
665
666 /dev/ip -> /dev/inet/ip
667 /dev/icmp -> /dev/inet/icmp
668 /dev/ggp -> /dev/inet/ggp
669 /dev/ipip -> /dev/inet/ipip
670 /dev/tcp -> /dev/inet/tcp
671 /dev/egp -> /dev/inet/egp
672 /dev/pup -> /dev/inet/pup
673 /dev/udp -> /dev/inet/udp
674 /dev/idp -> /dev/inet/idp
675 /dev/rawip -> /dev/inet/rawip
676 /dev/inet/arp -> /dev/inet/udp
677 /dev/inet/rip -> /dev/inet/udp
678 /dev/nfsd -> /dev/socksys
679 /dev/X0R -> /dev/null (? apparently not required ?)
680
681 30 block Philips LMS CM-205 CD-ROM
682 0 = /dev/cm205cd Philips LMS CM-205 CD-ROM
683
684 /dev/lmscd is an older name for this device. This
685 driver does not work with the CM-205MS CD-ROM.
686
687 31 char MPU-401 MIDI
688 0 = /dev/mpu401data MPU-401 data port
689 1 = /dev/mpu401stat MPU-401 status port
690
691 31 block ROM/flash memory card
692 0 = /dev/rom0 First ROM card (rw)
693 ...
694 7 = /dev/rom7 Eighth ROM card (rw)
695 8 = /dev/rrom0 First ROM card (ro)
696 ...
697 15 = /dev/rrom7 Eighth ROM card (ro)
698 16 = /dev/flash0 First flash memory card (rw)
699 ...
700 23 = /dev/flash7 Eighth flash memory card (rw)
701 24 = /dev/rflash0 First flash memory card (ro)
702 ...
703 31 = /dev/rflash7 Eighth flash memory card (ro)
704
705 The read-write (rw) devices support back-caching
706 written data in RAM, as well as writing to flash RAM
707 devices. The read-only devices (ro) support reading
708 only.
709
710 32 char Specialix serial card
711 0 = /dev/ttyX0 First Specialix port
712 1 = /dev/ttyX1 Second Specialix port
713 ...
714 32 block Philips LMS CM-206 CD-ROM
715 0 = /dev/cm206cd Philips LMS CM-206 CD-ROM
716
717 33 char Specialix serial card - alternate devices
718 0 = /dev/cux0 Callout device for ttyX0
719 1 = /dev/cux1 Callout device for ttyX1
720 ...
721 33 block Third IDE hard disk/CD-ROM interface
722 0 = /dev/hde Master: whole disk (or CD-ROM)
723 64 = /dev/hdf Slave: whole disk (or CD-ROM)
724
725 Partitions are handled the same way as for the first
726 interface (see major number 3).
727
728 34 char Z8530 HDLC driver
729 0 = /dev/scc0 First Z8530, first port
730 1 = /dev/scc1 First Z8530, second port
731 2 = /dev/scc2 Second Z8530, first port
732 3 = /dev/scc3 Second Z8530, second port
733 ...
734
735 In a previous version these devices were named
736 /dev/sc1 for /dev/scc0, /dev/sc2 for /dev/scc1, and so
737 on.
738
739 34 block Fourth IDE hard disk/CD-ROM interface
740 0 = /dev/hdg Master: whole disk (or CD-ROM)
741 64 = /dev/hdh Slave: whole disk (or CD-ROM)
742
743 Partitions are handled the same way as for the first
744 interface (see major number 3).
745
746 35 char tclmidi MIDI driver
747 0 = /dev/midi0 First MIDI port, kernel timed
748 1 = /dev/midi1 Second MIDI port, kernel timed
749 2 = /dev/midi2 Third MIDI port, kernel timed
750 3 = /dev/midi3 Fourth MIDI port, kernel timed
751 64 = /dev/rmidi0 First MIDI port, untimed
752 65 = /dev/rmidi1 Second MIDI port, untimed
753 66 = /dev/rmidi2 Third MIDI port, untimed
754 67 = /dev/rmidi3 Fourth MIDI port, untimed
755 128 = /dev/smpte0 First MIDI port, SMPTE timed
756 129 = /dev/smpte1 Second MIDI port, SMPTE timed
757 130 = /dev/smpte2 Third MIDI port, SMPTE timed
758 131 = /dev/smpte3 Fourth MIDI port, SMPTE timed
759
760 35 block Slow memory ramdisk
761 0 = /dev/slram Slow memory ramdisk
762
763 36 char Netlink support
764 0 = /dev/route Routing, device updates, kernel to user
765 1 = /dev/skip enSKIP security cache control
766 3 = /dev/fwmonitor Firewall packet copies
767 16 = /dev/tap0 First Ethertap device
768 ...
769 31 = /dev/tap15 16th Ethertap device
770
771 36 block OBSOLETE (was MCA ESDI hard disk)
772
773 37 char IDE tape
774 0 = /dev/ht0 First IDE tape
775 1 = /dev/ht1 Second IDE tape
776 ...
777 128 = /dev/nht0 First IDE tape, no rewind-on-close
778 129 = /dev/nht1 Second IDE tape, no rewind-on-close
779 ...
780
781 Currently, only one IDE tape drive is supported.
782
783 37 block Zorro II ramdisk
784 0 = /dev/z2ram Zorro II ramdisk
785
786 38 char Myricom PCI Myrinet board
787 0 = /dev/mlanai0 First Myrinet board
788 1 = /dev/mlanai1 Second Myrinet board
789 ...
790
791 This device is used for status query, board control
792 and "user level packet I/O." This board is also
793 accessible as a standard networking "eth" device.
794
795 38 block OBSOLETE (was Linux/AP+)
796
797 39 char ML-16P experimental I/O board
798 0 = /dev/ml16pa-a0 First card, first analog channel
799 1 = /dev/ml16pa-a1 First card, second analog channel
800 ...
801 15 = /dev/ml16pa-a15 First card, 16th analog channel
802 16 = /dev/ml16pa-d First card, digital lines
803 17 = /dev/ml16pa-c0 First card, first counter/timer
804 18 = /dev/ml16pa-c1 First card, second counter/timer
805 19 = /dev/ml16pa-c2 First card, third counter/timer
806 32 = /dev/ml16pb-a0 Second card, first analog channel
807 33 = /dev/ml16pb-a1 Second card, second analog channel
808 ...
809 47 = /dev/ml16pb-a15 Second card, 16th analog channel
810 48 = /dev/ml16pb-d Second card, digital lines
811 49 = /dev/ml16pb-c0 Second card, first counter/timer
812 50 = /dev/ml16pb-c1 Second card, second counter/timer
813 51 = /dev/ml16pb-c2 Second card, third counter/timer
814 ...
815 39 block
816
817 40 char
818
819 40 block
820
821 41 char Yet Another Micro Monitor
822 0 = /dev/yamm Yet Another Micro Monitor
823
824 41 block
825
826 42 char Demo/sample use
827
828 42 block Demo/sample use
829
830 This number is intended for use in sample code, as
831 well as a general "example" device number. It
832 should never be used for a device driver that is being
833 distributed; either obtain an official number or use
834 the local/experimental range. The sudden addition or
835 removal of a driver with this number should not cause
836 ill effects to the system (bugs excepted.)
837
838 IN PARTICULAR, ANY DISTRIBUTION WHICH CONTAINS A
839 DEVICE DRIVER USING MAJOR NUMBER 42 IS NONCOMPLIANT.
840
841 43 char isdn4linux virtual modem
842 0 = /dev/ttyI0 First virtual modem
843 ...
844 63 = /dev/ttyI63 64th virtual modem
845
846 43 block Network block devices
847 0 = /dev/nb0 First network block device
848 1 = /dev/nb1 Second network block device
849 ...
850
851 Network Block Device is somehow similar to loopback
852 devices: If you read from it, it sends packet across
853 network asking server for data. If you write to it, it
854 sends packet telling server to write. It could be used
855 to mounting filesystems over the net, swapping over
856 the net, implementing block device in userland etc.
857
858 44 char isdn4linux virtual modem - alternate devices
859 0 = /dev/cui0 Callout device for ttyI0
860 ...
861 63 = /dev/cui63 Callout device for ttyI63
862
863 44 block Flash Translation Layer (FTL) filesystems
864 0 = /dev/ftla FTL on first Memory Technology Device
865 16 = /dev/ftlb FTL on second Memory Technology Device
866 32 = /dev/ftlc FTL on third Memory Technology Device
867 ...
868 240 = /dev/ftlp FTL on 16th Memory Technology Device
869
870 Partitions are handled in the same way as for IDE
871 disks (see major number 3) except that the partition
872 limit is 15 rather than 63 per disk (same as SCSI.)
873
874 45 char isdn4linux ISDN BRI driver
875 0 = /dev/isdn0 First virtual B channel raw data
876 ...
877 63 = /dev/isdn63 64th virtual B channel raw data
878 64 = /dev/isdnctrl0 First channel control/debug
879 ...
880 127 = /dev/isdnctrl63 64th channel control/debug
881
882 128 = /dev/ippp0 First SyncPPP device
883 ...
884 191 = /dev/ippp63 64th SyncPPP device
885
886 255 = /dev/isdninfo ISDN monitor interface
887
888 45 block Parallel port IDE disk devices
889 0 = /dev/pda First parallel port IDE disk
890 16 = /dev/pdb Second parallel port IDE disk
891 32 = /dev/pdc Third parallel port IDE disk
892 48 = /dev/pdd Fourth parallel port IDE disk
893
894 Partitions are handled in the same way as for IDE
895 disks (see major number 3) except that the partition
896 limit is 15 rather than 63 per disk.
897
898 46 char Comtrol Rocketport serial card
899 0 = /dev/ttyR0 First Rocketport port
900 1 = /dev/ttyR1 Second Rocketport port
901 ...
902 46 block Parallel port ATAPI CD-ROM devices
903 0 = /dev/pcd0 First parallel port ATAPI CD-ROM
904 1 = /dev/pcd1 Second parallel port ATAPI CD-ROM
905 2 = /dev/pcd2 Third parallel port ATAPI CD-ROM
906 3 = /dev/pcd3 Fourth parallel port ATAPI CD-ROM
907
908 47 char Comtrol Rocketport serial card - alternate devices
909 0 = /dev/cur0 Callout device for ttyR0
910 1 = /dev/cur1 Callout device for ttyR1
911 ...
912 47 block Parallel port ATAPI disk devices
913 0 = /dev/pf0 First parallel port ATAPI disk
914 1 = /dev/pf1 Second parallel port ATAPI disk
915 2 = /dev/pf2 Third parallel port ATAPI disk
916 3 = /dev/pf3 Fourth parallel port ATAPI disk
917
918 This driver is intended for floppy disks and similar
919 devices and hence does not support partitioning.
920
921 48 char SDL RISCom serial card
922 0 = /dev/ttyL0 First RISCom port
923 1 = /dev/ttyL1 Second RISCom port
924 ...
925 48 block Mylex DAC960 PCI RAID controller; first controller
926 0 = /dev/rd/c0d0 First disk, whole disk
927 8 = /dev/rd/c0d1 Second disk, whole disk
928 ...
929 248 = /dev/rd/c0d31 32nd disk, whole disk
930
931 For partitions add:
932 0 = /dev/rd/c?d? Whole disk
933 1 = /dev/rd/c?d?p1 First partition
934 ...
935 7 = /dev/rd/c?d?p7 Seventh partition
936
937 49 char SDL RISCom serial card - alternate devices
938 0 = /dev/cul0 Callout device for ttyL0
939 1 = /dev/cul1 Callout device for ttyL1
940 ...
941 49 block Mylex DAC960 PCI RAID controller; second controller
942 0 = /dev/rd/c1d0 First disk, whole disk
943 8 = /dev/rd/c1d1 Second disk, whole disk
944 ...
945 248 = /dev/rd/c1d31 32nd disk, whole disk
946
947 Partitions are handled as for major 48.
948
949 50 char Reserved for GLINT
950
951 50 block Mylex DAC960 PCI RAID controller; third controller
952 0 = /dev/rd/c2d0 First disk, whole disk
953 8 = /dev/rd/c2d1 Second disk, whole disk
954 ...
955 248 = /dev/rd/c2d31 32nd disk, whole disk
956
957 51 char Baycom radio modem OR Radio Tech BIM-XXX-RS232 radio modem
958 0 = /dev/bc0 First Baycom radio modem
959 1 = /dev/bc1 Second Baycom radio modem
960 ...
961 51 block Mylex DAC960 PCI RAID controller; fourth controller
962 0 = /dev/rd/c3d0 First disk, whole disk
963 8 = /dev/rd/c3d1 Second disk, whole disk
964 ...
965 248 = /dev/rd/c3d31 32nd disk, whole disk
966
967 Partitions are handled as for major 48.
968
969 52 char Spellcaster DataComm/BRI ISDN card
970 0 = /dev/dcbri0 First DataComm card
971 1 = /dev/dcbri1 Second DataComm card
972 2 = /dev/dcbri2 Third DataComm card
973 3 = /dev/dcbri3 Fourth DataComm card
974
975 52 block Mylex DAC960 PCI RAID controller; fifth controller
976 0 = /dev/rd/c4d0 First disk, whole disk
977 8 = /dev/rd/c4d1 Second disk, whole disk
978 ...
979 248 = /dev/rd/c4d31 32nd disk, whole disk
980
981 Partitions are handled as for major 48.
982
983 53 char BDM interface for remote debugging MC683xx microcontrollers
984 0 = /dev/pd_bdm0 PD BDM interface on lp0
985 1 = /dev/pd_bdm1 PD BDM interface on lp1
986 2 = /dev/pd_bdm2 PD BDM interface on lp2
987 4 = /dev/icd_bdm0 ICD BDM interface on lp0
988 5 = /dev/icd_bdm1 ICD BDM interface on lp1
989 6 = /dev/icd_bdm2 ICD BDM interface on lp2
990
991 This device is used for the interfacing to the MC683xx
992 microcontrollers via Background Debug Mode by use of a
993 Parallel Port interface. PD is the Motorola Public
994 Domain Interface and ICD is the commercial interface
995 by P&E.
996
997 53 block Mylex DAC960 PCI RAID controller; sixth controller
998 0 = /dev/rd/c5d0 First disk, whole disk
999 8 = /dev/rd/c5d1 Second disk, whole disk
1000 ...
1001 248 = /dev/rd/c5d31 32nd disk, whole disk
1002
1003 Partitions are handled as for major 48.
1004
1005 54 char Electrocardiognosis Holter serial card
1006 0 = /dev/holter0 First Holter port
1007 1 = /dev/holter1 Second Holter port
1008 2 = /dev/holter2 Third Holter port
1009
1010 A custom serial card used by Electrocardiognosis SRL
1011 <mseritan@ottonel.pub.ro> to transfer data from Holter
1012 24-hour heart monitoring equipment.
1013
1014 54 block Mylex DAC960 PCI RAID controller; seventh controller
1015 0 = /dev/rd/c6d0 First disk, whole disk
1016 8 = /dev/rd/c6d1 Second disk, whole disk
1017 ...
1018 248 = /dev/rd/c6d31 32nd disk, whole disk
1019
1020 Partitions are handled as for major 48.
1021
1022 55 char DSP56001 digital signal processor
1023 0 = /dev/dsp56k First DSP56001
1024
1025 55 block Mylex DAC960 PCI RAID controller; eighth controller
1026 0 = /dev/rd/c7d0 First disk, whole disk
1027 8 = /dev/rd/c7d1 Second disk, whole disk
1028 ...
1029 248 = /dev/rd/c7d31 32nd disk, whole disk
1030
1031 Partitions are handled as for major 48.
1032
1033 56 char Apple Desktop Bus
1034 0 = /dev/adb ADB bus control
1035
1036 Additional devices will be added to this number, all
1037 starting with /dev/adb.
1038
1039 56 block Fifth IDE hard disk/CD-ROM interface
1040 0 = /dev/hdi Master: whole disk (or CD-ROM)
1041 64 = /dev/hdj Slave: whole disk (or CD-ROM)
1042
1043 Partitions are handled the same way as for the first
1044 interface (see major number 3).
1045
1046 57 char Hayes ESP serial card
1047 0 = /dev/ttyP0 First ESP port
1048 1 = /dev/ttyP1 Second ESP port
1049 ...
1050
1051 57 block Sixth IDE hard disk/CD-ROM interface
1052 0 = /dev/hdk Master: whole disk (or CD-ROM)
1053 64 = /dev/hdl Slave: whole disk (or CD-ROM)
1054
1055 Partitions are handled the same way as for the first
1056 interface (see major number 3).
1057
1058 58 char Hayes ESP serial card - alternate devices
1059 0 = /dev/cup0 Callout device for ttyP0
1060 1 = /dev/cup1 Callout device for ttyP1
1061 ...
1062
1063 58 block Reserved for logical volume manager
1064
1065 59 char sf firewall package
1066 0 = /dev/firewall Communication with sf kernel module
1067
1068 59 block Generic PDA filesystem device
1069 0 = /dev/pda0 First PDA device
1070 1 = /dev/pda1 Second PDA device
1071 ...
1072
1073 The pda devices are used to mount filesystems on
1074 remote pda's (basically slow handheld machines with
1075 proprietary OS's and limited memory and storage
1076 running small fs translation drivers) through serial /
1077 IRDA / parallel links.
1078
1079 NAMING CONFLICT -- PROPOSED REVISED NAME /dev/rpda0 etc
1080
1081 60-63 char LOCAL/EXPERIMENTAL USE
1082
1083 60-63 block LOCAL/EXPERIMENTAL USE
1084 Allocated for local/experimental use. For devices not
1085 assigned official numbers, these ranges should be
1086 used in order to avoid conflicting with future assignments.
1087
1088 64 char ENskip kernel encryption package
1089 0 = /dev/enskip Communication with ENskip kernel module
1090
1091 64 block Scramdisk/DriveCrypt encrypted devices
1092 0 = /dev/scramdisk/master Master node for ioctls
1093 1 = /dev/scramdisk/1 First encrypted device
1094 2 = /dev/scramdisk/2 Second encrypted device
1095 ...
1096 255 = /dev/scramdisk/255 255th encrypted device
1097
1098 The filename of the encrypted container and the passwords
1099 are sent via ioctls (using the sdmount tool) to the master
1100 node which then activates them via one of the
1101 /dev/scramdisk/x nodes for loop mounting (all handled
1102 through the sdmount tool).
1103
1104 Requested by: andy@scramdisklinux.org
1105
1106 65 char Sundance "plink" Transputer boards (obsolete, unused)
1107 0 = /dev/plink0 First plink device
1108 1 = /dev/plink1 Second plink device
1109 2 = /dev/plink2 Third plink device
1110 3 = /dev/plink3 Fourth plink device
1111 64 = /dev/rplink0 First plink device, raw
1112 65 = /dev/rplink1 Second plink device, raw
1113 66 = /dev/rplink2 Third plink device, raw
1114 67 = /dev/rplink3 Fourth plink device, raw
1115 128 = /dev/plink0d First plink device, debug
1116 129 = /dev/plink1d Second plink device, debug
1117 130 = /dev/plink2d Third plink device, debug
1118 131 = /dev/plink3d Fourth plink device, debug
1119 192 = /dev/rplink0d First plink device, raw, debug
1120 193 = /dev/rplink1d Second plink device, raw, debug
1121 194 = /dev/rplink2d Third plink device, raw, debug
1122 195 = /dev/rplink3d Fourth plink device, raw, debug
1123
1124 This is a commercial driver; contact James Howes
1125 <jth@prosig.demon.co.uk> for information.
1126
1127 65 block SCSI disk devices (16-31)
1128 0 = /dev/sdq 17th SCSI disk whole disk
1129 16 = /dev/sdr 18th SCSI disk whole disk
1130 32 = /dev/sds 19th SCSI disk whole disk
1131 ...
1132 240 = /dev/sdaf 32nd SCSI disk whole disk
1133
1134 Partitions are handled in the same way as for IDE
1135 disks (see major number 3) except that the limit on
1136 partitions is 15.
1137
1138 66 char YARC PowerPC PCI coprocessor card
1139 0 = /dev/yppcpci0 First YARC card
1140 1 = /dev/yppcpci1 Second YARC card
1141 ...
1142
1143 66 block SCSI disk devices (32-47)
1144 0 = /dev/sdag 33th SCSI disk whole disk
1145 16 = /dev/sdah 34th SCSI disk whole disk
1146 32 = /dev/sdai 35th SCSI disk whole disk
1147 ...
1148 240 = /dev/sdav 48nd SCSI disk whole disk
1149
1150 Partitions are handled in the same way as for IDE
1151 disks (see major number 3) except that the limit on
1152 partitions is 15.
1153
1154 67 char Coda network file system
1155 0 = /dev/cfs0 Coda cache manager
1156
1157 See http://www.coda.cs.cmu.edu for information about Coda.
1158
1159 67 block SCSI disk devices (48-63)
1160 0 = /dev/sdaw 49th SCSI disk whole disk
1161 16 = /dev/sdax 50th SCSI disk whole disk
1162 32 = /dev/sday 51st SCSI disk whole disk
1163 ...
1164 240 = /dev/sdbl 64th SCSI disk whole disk
1165
1166 Partitions are handled in the same way as for IDE
1167 disks (see major number 3) except that the limit on
1168 partitions is 15.
1169
1170 68 char CAPI 2.0 interface
1171 0 = /dev/capi20 Control device
1172 1 = /dev/capi20.00 First CAPI 2.0 application
1173 2 = /dev/capi20.01 Second CAPI 2.0 application
1174 ...
1175 20 = /dev/capi20.19 19th CAPI 2.0 application
1176
1177 ISDN CAPI 2.0 driver for use with CAPI 2.0
1178 applications; currently supports the AVM B1 card.
1179
1180 68 block SCSI disk devices (64-79)
1181 0 = /dev/sdbm 65th SCSI disk whole disk
1182 16 = /dev/sdbn 66th SCSI disk whole disk
1183 32 = /dev/sdbo 67th SCSI disk whole disk
1184 ...
1185 240 = /dev/sdcb 80th SCSI disk whole disk
1186
1187 Partitions are handled in the same way as for IDE
1188 disks (see major number 3) except that the limit on
1189 partitions is 15.
1190
1191 69 char MA16 numeric accelerator card
1192 0 = /dev/ma16 Board memory access
1193
1194 69 block SCSI disk devices (80-95)
1195 0 = /dev/sdcc 81st SCSI disk whole disk
1196 16 = /dev/sdcd 82nd SCSI disk whole disk
1197 32 = /dev/sdce 83th SCSI disk whole disk
1198 ...
1199 240 = /dev/sdcr 96th SCSI disk whole disk
1200
1201 Partitions are handled in the same way as for IDE
1202 disks (see major number 3) except that the limit on
1203 partitions is 15.
1204
1205 70 char SpellCaster Protocol Services Interface
1206 0 = /dev/apscfg Configuration interface
1207 1 = /dev/apsauth Authentication interface
1208 2 = /dev/apslog Logging interface
1209 3 = /dev/apsdbg Debugging interface
1210 64 = /dev/apsisdn ISDN command interface
1211 65 = /dev/apsasync Async command interface
1212 128 = /dev/apsmon Monitor interface
1213
1214 70 block SCSI disk devices (96-111)
1215 0 = /dev/sdcs 97th SCSI disk whole disk
1216 16 = /dev/sdct 98th SCSI disk whole disk
1217 32 = /dev/sdcu 99th SCSI disk whole disk
1218 ...
1219 240 = /dev/sddh 112nd SCSI disk whole disk
1220
1221 Partitions are handled in the same way as for IDE
1222 disks (see major number 3) except that the limit on
1223 partitions is 15.
1224
1225 71 char Computone IntelliPort II serial card
1226 0 = /dev/ttyF0 IntelliPort II board 0, port 0
1227 1 = /dev/ttyF1 IntelliPort II board 0, port 1
1228 ...
1229 63 = /dev/ttyF63 IntelliPort II board 0, port 63
1230 64 = /dev/ttyF64 IntelliPort II board 1, port 0
1231 65 = /dev/ttyF65 IntelliPort II board 1, port 1
1232 ...
1233 127 = /dev/ttyF127 IntelliPort II board 1, port 63
1234 128 = /dev/ttyF128 IntelliPort II board 2, port 0
1235 129 = /dev/ttyF129 IntelliPort II board 2, port 1
1236 ...
1237 191 = /dev/ttyF191 IntelliPort II board 2, port 63
1238 192 = /dev/ttyF192 IntelliPort II board 3, port 0
1239 193 = /dev/ttyF193 IntelliPort II board 3, port 1
1240 ...
1241 255 = /dev/ttyF255 IntelliPort II board 3, port 63
1242
1243 71 block SCSI disk devices (112-127)
1244 0 = /dev/sddi 113th SCSI disk whole disk
1245 16 = /dev/sddj 114th SCSI disk whole disk
1246 32 = /dev/sddk 115th SCSI disk whole disk
1247 ...
1248 240 = /dev/sddx 128th SCSI disk whole disk
1249
1250 Partitions are handled in the same way as for IDE
1251 disks (see major number 3) except that the limit on
1252 partitions is 15.
1253
1254 72 char Computone IntelliPort II serial card - alternate devices
1255 0 = /dev/cuf0 Callout device for ttyF0
1256 1 = /dev/cuf1 Callout device for ttyF1
1257 ...
1258 63 = /dev/cuf63 Callout device for ttyF63
1259 64 = /dev/cuf64 Callout device for ttyF64
1260 65 = /dev/cuf65 Callout device for ttyF65
1261 ...
1262 127 = /dev/cuf127 Callout device for ttyF127
1263 128 = /dev/cuf128 Callout device for ttyF128
1264 129 = /dev/cuf129 Callout device for ttyF129
1265 ...
1266 191 = /dev/cuf191 Callout device for ttyF191
1267 192 = /dev/cuf192 Callout device for ttyF192
1268 193 = /dev/cuf193 Callout device for ttyF193
1269 ...
1270 255 = /dev/cuf255 Callout device for ttyF255
1271
1272 72 block Compaq Intelligent Drive Array, first controller
1273 0 = /dev/ida/c0d0 First logical drive whole disk
1274 16 = /dev/ida/c0d1 Second logical drive whole disk
1275 ...
1276 240 = /dev/ida/c0d15 16th logical drive whole disk
1277
1278 Partitions are handled the same way as for Mylex
1279 DAC960 (see major number 48) except that the limit on
1280 partitions is 15.
1281
1282 73 char Computone IntelliPort II serial card - control devices
1283 0 = /dev/ip2ipl0 Loadware device for board 0
1284 1 = /dev/ip2stat0 Status device for board 0
1285 4 = /dev/ip2ipl1 Loadware device for board 1
1286 5 = /dev/ip2stat1 Status device for board 1
1287 8 = /dev/ip2ipl2 Loadware device for board 2
1288 9 = /dev/ip2stat2 Status device for board 2
1289 12 = /dev/ip2ipl3 Loadware device for board 3
1290 13 = /dev/ip2stat3 Status device for board 3
1291
1292 73 block Compaq Intelligent Drive Array, second controller
1293 0 = /dev/ida/c1d0 First logical drive whole disk
1294 16 = /dev/ida/c1d1 Second logical drive whole disk
1295 ...
1296 240 = /dev/ida/c1d15 16th logical drive whole disk
1297
1298 Partitions are handled the same way as for Mylex
1299 DAC960 (see major number 48) except that the limit on
1300 partitions is 15.
1301
1302 74 char SCI bridge
1303 0 = /dev/SCI/0 SCI device 0
1304 1 = /dev/SCI/1 SCI device 1
1305 ...
1306
1307 Currently for Dolphin Interconnect Solutions' PCI-SCI
1308 bridge.
1309
1310 74 block Compaq Intelligent Drive Array, third controller
1311 0 = /dev/ida/c2d0 First logical drive whole disk
1312 16 = /dev/ida/c2d1 Second logical drive whole disk
1313 ...
1314 240 = /dev/ida/c2d15 16th logical drive whole disk
1315
1316 Partitions are handled the same way as for Mylex
1317 DAC960 (see major number 48) except that the limit on
1318 partitions is 15.
1319
1320 75 char Specialix IO8+ serial card
1321 0 = /dev/ttyW0 First IO8+ port, first card
1322 1 = /dev/ttyW1 Second IO8+ port, first card
1323 ...
1324 8 = /dev/ttyW8 First IO8+ port, second card
1325 ...
1326
1327 75 block Compaq Intelligent Drive Array, fourth controller
1328 0 = /dev/ida/c3d0 First logical drive whole disk
1329 16 = /dev/ida/c3d1 Second logical drive whole disk
1330 ...
1331 240 = /dev/ida/c3d15 16th logical drive whole disk
1332
1333 Partitions are handled the same way as for Mylex
1334 DAC960 (see major number 48) except that the limit on
1335 partitions is 15.
1336
1337 76 char Specialix IO8+ serial card - alternate devices
1338 0 = /dev/cuw0 Callout device for ttyW0
1339 1 = /dev/cuw1 Callout device for ttyW1
1340 ...
1341 8 = /dev/cuw8 Callout device for ttyW8
1342 ...
1343
1344 76 block Compaq Intelligent Drive Array, fifth controller
1345 0 = /dev/ida/c4d0 First logical drive whole disk
1346 16 = /dev/ida/c4d1 Second logical drive whole disk
1347 ...
1348 240 = /dev/ida/c4d15 16th logical drive whole disk
1349
1350 Partitions are handled the same way as for Mylex
1351 DAC960 (see major number 48) except that the limit on
1352 partitions is 15.
1353
1354
1355 77 char ComScire Quantum Noise Generator
1356 0 = /dev/qng ComScire Quantum Noise Generator
1357
1358 77 block Compaq Intelligent Drive Array, sixth controller
1359 0 = /dev/ida/c5d0 First logical drive whole disk
1360 16 = /dev/ida/c5d1 Second logical drive whole disk
1361 ...
1362 240 = /dev/ida/c5d15 16th logical drive whole disk
1363
1364 Partitions are handled the same way as for Mylex
1365 DAC960 (see major number 48) except that the limit on
1366 partitions is 15.
1367
1368 78 char PAM Software's multimodem boards
1369 0 = /dev/ttyM0 First PAM modem
1370 1 = /dev/ttyM1 Second PAM modem
1371 ...
1372
1373 78 block Compaq Intelligent Drive Array, seventh controller
1374 0 = /dev/ida/c6d0 First logical drive whole disk
1375 16 = /dev/ida/c6d1 Second logical drive whole disk
1376 ...
1377 240 = /dev/ida/c6d15 16th logical drive whole disk
1378
1379 Partitions are handled the same way as for Mylex
1380 DAC960 (see major number 48) except that the limit on
1381 partitions is 15.
1382
1383 79 char PAM Software's multimodem boards - alternate devices
1384 0 = /dev/cum0 Callout device for ttyM0
1385 1 = /dev/cum1 Callout device for ttyM1
1386 ...
1387
1388 79 block Compaq Intelligent Drive Array, eighth controller
1389 0 = /dev/ida/c7d0 First logical drive whole disk
1390 16 = /dev/ida/c7d1 Second logical drive whole disk
1391 ...
1392 240 = /dev/ida/c715 16th logical drive whole disk
1393
1394 Partitions are handled the same way as for Mylex
1395 DAC960 (see major number 48) except that the limit on
1396 partitions is 15.
1397
1398 80 char Photometrics AT200 CCD camera
1399 0 = /dev/at200 Photometrics AT200 CCD camera
1400
1401 80 block I2O hard disk
1402 0 = /dev/i2o/hda First I2O hard disk, whole disk
1403 16 = /dev/i2o/hdb Second I2O hard disk, whole disk
1404 ...
1405 240 = /dev/i2o/hdp 16th I2O hard disk, whole disk
1406
1407 Partitions are handled in the same way as for IDE
1408 disks (see major number 3) except that the limit on
1409 partitions is 15.
1410
1411 81 char video4linux
1412 0 = /dev/video0 Video capture/overlay device
1413 ...
1414 63 = /dev/video63 Video capture/overlay device
1415 64 = /dev/radio0 Radio device
1416 ...
1417 127 = /dev/radio63 Radio device
1418 128 = /dev/swradio0 Software Defined Radio device
1419 ...
1420 191 = /dev/swradio63 Software Defined Radio device
1421 224 = /dev/vbi0 Vertical blank interrupt
1422 ...
1423 255 = /dev/vbi31 Vertical blank interrupt
1424
1425 Minor numbers are allocated dynamically unless
1426 CONFIG_VIDEO_FIXED_MINOR_RANGES (default n)
1427 configuration option is set.
1428
1429 81 block I2O hard disk
1430 0 = /dev/i2o/hdq 17th I2O hard disk, whole disk
1431 16 = /dev/i2o/hdr 18th I2O hard disk, whole disk
1432 ...
1433 240 = /dev/i2o/hdaf 32nd I2O hard disk, whole disk
1434
1435 Partitions are handled in the same way as for IDE
1436 disks (see major number 3) except that the limit on
1437 partitions is 15.
1438
1439 82 char WiNRADiO communications receiver card
1440 0 = /dev/winradio0 First WiNRADiO card
1441 1 = /dev/winradio1 Second WiNRADiO card
1442 ...
1443
1444 The driver and documentation may be obtained from
1445 http://www.winradio.com/
1446
1447 82 block I2O hard disk
1448 0 = /dev/i2o/hdag 33rd I2O hard disk, whole disk
1449 16 = /dev/i2o/hdah 34th I2O hard disk, whole disk
1450 ...
1451 240 = /dev/i2o/hdav 48th I2O hard disk, whole disk
1452
1453 Partitions are handled in the same way as for IDE
1454 disks (see major number 3) except that the limit on
1455 partitions is 15.
1456
1457 83 char Matrox mga_vid video driver
1458 0 = /dev/mga_vid0 1st video card
1459 1 = /dev/mga_vid1 2nd video card
1460 2 = /dev/mga_vid2 3rd video card
1461 ...
1462 15 = /dev/mga_vid15 16th video card
1463
1464 83 block I2O hard disk
1465 0 = /dev/i2o/hdaw 49th I2O hard disk, whole disk
1466 16 = /dev/i2o/hdax 50th I2O hard disk, whole disk
1467 ...
1468 240 = /dev/i2o/hdbl 64th I2O hard disk, whole disk
1469
1470 Partitions are handled in the same way as for IDE
1471 disks (see major number 3) except that the limit on
1472 partitions is 15.
1473
1474 84 char Ikon 1011[57] Versatec Greensheet Interface
1475 0 = /dev/ihcp0 First Greensheet port
1476 1 = /dev/ihcp1 Second Greensheet port
1477
1478 84 block I2O hard disk
1479 0 = /dev/i2o/hdbm 65th I2O hard disk, whole disk
1480 16 = /dev/i2o/hdbn 66th I2O hard disk, whole disk
1481 ...
1482 240 = /dev/i2o/hdcb 80th I2O hard disk, whole disk
1483
1484 Partitions are handled in the same way as for IDE
1485 disks (see major number 3) except that the limit on
1486 partitions is 15.
1487
1488 85 char Linux/SGI shared memory input queue
1489 0 = /dev/shmiq Master shared input queue
1490 1 = /dev/qcntl0 First device pushed
1491 2 = /dev/qcntl1 Second device pushed
1492 ...
1493
1494 85 block I2O hard disk
1495 0 = /dev/i2o/hdcc 81st I2O hard disk, whole disk
1496 16 = /dev/i2o/hdcd 82nd I2O hard disk, whole disk
1497 ...
1498 240 = /dev/i2o/hdcr 96th I2O hard disk, whole disk
1499
1500 Partitions are handled in the same way as for IDE
1501 disks (see major number 3) except that the limit on
1502 partitions is 15.
1503
1504 86 char SCSI media changer
1505 0 = /dev/sch0 First SCSI media changer
1506 1 = /dev/sch1 Second SCSI media changer
1507 ...
1508
1509 86 block I2O hard disk
1510 0 = /dev/i2o/hdcs 97th I2O hard disk, whole disk
1511 16 = /dev/i2o/hdct 98th I2O hard disk, whole disk
1512 ...
1513 240 = /dev/i2o/hddh 112th I2O hard disk, whole disk
1514
1515 Partitions are handled in the same way as for IDE
1516 disks (see major number 3) except that the limit on
1517 partitions is 15.
1518
1519 87 char Sony Control-A1 stereo control bus
1520 0 = /dev/controla0 First device on chain
1521 1 = /dev/controla1 Second device on chain
1522 ...
1523
1524 87 block I2O hard disk
1525 0 = /dev/i2o/hddi 113rd I2O hard disk, whole disk
1526 16 = /dev/i2o/hddj 114th I2O hard disk, whole disk
1527 ...
1528 240 = /dev/i2o/hddx 128th I2O hard disk, whole disk
1529
1530 Partitions are handled in the same way as for IDE
1531 disks (see major number 3) except that the limit on
1532 partitions is 15.
1533
1534 88 char COMX synchronous serial card
1535 0 = /dev/comx0 COMX channel 0
1536 1 = /dev/comx1 COMX channel 1
1537 ...
1538
1539 88 block Seventh IDE hard disk/CD-ROM interface
1540 0 = /dev/hdm Master: whole disk (or CD-ROM)
1541 64 = /dev/hdn Slave: whole disk (or CD-ROM)
1542
1543 Partitions are handled the same way as for the first
1544 interface (see major number 3).
1545
1546 89 char I2C bus interface
1547 0 = /dev/i2c-0 First I2C adapter
1548 1 = /dev/i2c-1 Second I2C adapter
1549 ...
1550
1551 89 block Eighth IDE hard disk/CD-ROM interface
1552 0 = /dev/hdo Master: whole disk (or CD-ROM)
1553 64 = /dev/hdp Slave: whole disk (or CD-ROM)
1554
1555 Partitions are handled the same way as for the first
1556 interface (see major number 3).
1557
1558 90 char Memory Technology Device (RAM, ROM, Flash)
1559 0 = /dev/mtd0 First MTD (rw)
1560 1 = /dev/mtdr0 First MTD (ro)
1561 ...
1562 30 = /dev/mtd15 16th MTD (rw)
1563 31 = /dev/mtdr15 16th MTD (ro)
1564
1565 90 block Ninth IDE hard disk/CD-ROM interface
1566 0 = /dev/hdq Master: whole disk (or CD-ROM)
1567 64 = /dev/hdr Slave: whole disk (or CD-ROM)
1568
1569 Partitions are handled the same way as for the first
1570 interface (see major number 3).
1571
1572 91 char CAN-Bus devices
1573 0 = /dev/can0 First CAN-Bus controller
1574 1 = /dev/can1 Second CAN-Bus controller
1575 ...
1576
1577 91 block Tenth IDE hard disk/CD-ROM interface
1578 0 = /dev/hds Master: whole disk (or CD-ROM)
1579 64 = /dev/hdt Slave: whole disk (or CD-ROM)
1580
1581 Partitions are handled the same way as for the first
1582 interface (see major number 3).
1583
1584 92 char Reserved for ith Kommunikationstechnik MIC ISDN card
1585
1586 92 block PPDD encrypted disk driver
1587 0 = /dev/ppdd0 First encrypted disk
1588 1 = /dev/ppdd1 Second encrypted disk
1589 ...
1590
1591 Partitions are handled in the same way as for IDE
1592 disks (see major number 3) except that the limit on
1593 partitions is 15.
1594
1595 93 char
1596
1597 93 block NAND Flash Translation Layer filesystem
1598 0 = /dev/nftla First NFTL layer
1599 16 = /dev/nftlb Second NFTL layer
1600 ...
1601 240 = /dev/nftlp 16th NTFL layer
1602
1603 94 char
1604
1605 94 block IBM S/390 DASD block storage
1606 0 = /dev/dasda First DASD device, major
1607 1 = /dev/dasda1 First DASD device, block 1
1608 2 = /dev/dasda2 First DASD device, block 2
1609 3 = /dev/dasda3 First DASD device, block 3
1610 4 = /dev/dasdb Second DASD device, major
1611 5 = /dev/dasdb1 Second DASD device, block 1
1612 6 = /dev/dasdb2 Second DASD device, block 2
1613 7 = /dev/dasdb3 Second DASD device, block 3
1614 ...
1615
1616 95 char IP filter
1617 0 = /dev/ipl Filter control device/log file
1618 1 = /dev/ipnat NAT control device/log file
1619 2 = /dev/ipstate State information log file
1620 3 = /dev/ipauth Authentication control device/log file
1621 ...
1622
1623 96 char Parallel port ATAPI tape devices
1624 0 = /dev/pt0 First parallel port ATAPI tape
1625 1 = /dev/pt1 Second parallel port ATAPI tape
1626 ...
1627 128 = /dev/npt0 First p.p. ATAPI tape, no rewind
1628 129 = /dev/npt1 Second p.p. ATAPI tape, no rewind
1629 ...
1630
1631 96 block Inverse NAND Flash Translation Layer
1632 0 = /dev/inftla First INFTL layer
1633 16 = /dev/inftlb Second INFTL layer
1634 ...
1635 240 = /dev/inftlp 16th INTFL layer
1636
1637 97 char Parallel port generic ATAPI interface
1638 0 = /dev/pg0 First parallel port ATAPI device
1639 1 = /dev/pg1 Second parallel port ATAPI device
1640 2 = /dev/pg2 Third parallel port ATAPI device
1641 3 = /dev/pg3 Fourth parallel port ATAPI device
1642
1643 These devices support the same API as the generic SCSI
1644 devices.
1645
1646 98 char Control and Measurement Device (comedi)
1647 0 = /dev/comedi0 First comedi device
1648 1 = /dev/comedi1 Second comedi device
1649 ...
d62e8055 1650 47 = /dev/comedi47 48th comedi device
07c7e30c 1651
d62e8055
IA		 1652 Minors 48 to 255 are reserved for comedi subdevices with
1653 pathnames of the form "/dev/comediX_subdY", where "X" is the
1654 minor number of the associated comedi device and "Y" is the
1655 subdevice number. These subdevice minors are assigned
1656 dynamically, so there is no fixed mapping from subdevice
1657 pathnames to minor numbers.
1658
1659 See http://www.comedi.org/ for information about the Comedi
1660 project.
07c7e30c
JN		 1661
1662 98 block User-mode virtual block device
1663 0 = /dev/ubda First user-mode block device
1664 16 = /dev/udbb Second user-mode block device
1665 ...
1666
1667 Partitions are handled in the same way as for IDE
1668 disks (see major number 3) except that the limit on
1669 partitions is 15.
1670
1671 This device is used by the user-mode virtual kernel port.
1672
1673 99 char Raw parallel ports
1674 0 = /dev/parport0 First parallel port
1675 1 = /dev/parport1 Second parallel port
1676 ...
1677
1678 99 block JavaStation flash disk
1679 0 = /dev/jsfd JavaStation flash disk
1680
1681 100 char Telephony for Linux
1682 0 = /dev/phone0 First telephony device
1683 1 = /dev/phone1 Second telephony device
1684 ...
1685
1686 101 char Motorola DSP 56xxx board
1687 0 = /dev/mdspstat Status information
1688 1 = /dev/mdsp1 First DSP board I/O controls
1689 ...
1690 16 = /dev/mdsp16 16th DSP board I/O controls
1691
1692 101 block AMI HyperDisk RAID controller
1693 0 = /dev/amiraid/ar0 First array whole disk
1694 16 = /dev/amiraid/ar1 Second array whole disk
1695 ...
1696 240 = /dev/amiraid/ar15 16th array whole disk
1697
1698 For each device, partitions are added as:
1699 0 = /dev/amiraid/ar? Whole disk
1700 1 = /dev/amiraid/ar?p1 First partition
1701 2 = /dev/amiraid/ar?p2 Second partition
1702 ...
1703 15 = /dev/amiraid/ar?p15 15th partition
1704
1705 102 char
1706
1707 102 block Compressed block device
1708 0 = /dev/cbd/a First compressed block device, whole device
1709 16 = /dev/cbd/b Second compressed block device, whole device
1710 ...
1711 240 = /dev/cbd/p 16th compressed block device, whole device
1712
1713 Partitions are handled in the same way as for IDE
1714 disks (see major number 3) except that the limit on
1715 partitions is 15.
1716
1717 103 char Arla network file system
1718 0 = /dev/nnpfs0 First NNPFS device
1719 1 = /dev/nnpfs1 Second NNPFS device
1720
1721 Arla is a free clone of the Andrew File System, AFS.
1722 The NNPFS device gives user mode filesystem
1723 implementations a kernel presence for caching and easy
1724 mounting. For more information about the project,
1725 write to <arla-drinkers@stacken.kth.se> or see
1726 http://www.stacken.kth.se/project/arla/
1727
1728 103 block Audit device
1729 0 = /dev/audit Audit device
1730
1731 104 char Flash BIOS support
1732
1733 104 block Compaq Next Generation Drive Array, first controller
1734 0 = /dev/cciss/c0d0 First logical drive, whole disk
1735 16 = /dev/cciss/c0d1 Second logical drive, whole disk
1736 ...
1737 240 = /dev/cciss/c0d15 16th logical drive, whole disk
1738
1739 Partitions are handled the same way as for Mylex
1740 DAC960 (see major number 48) except that the limit on
1741 partitions is 15.
1742
1743 105 char Comtrol VS-1000 serial controller
1744 0 = /dev/ttyV0 First VS-1000 port
1745 1 = /dev/ttyV1 Second VS-1000 port
1746 ...
1747
1748 105 block Compaq Next Generation Drive Array, second controller
1749 0 = /dev/cciss/c1d0 First logical drive, whole disk
1750 16 = /dev/cciss/c1d1 Second logical drive, whole disk
1751 ...
1752 240 = /dev/cciss/c1d15 16th logical drive, whole disk
1753
1754 Partitions are handled the same way as for Mylex
1755 DAC960 (see major number 48) except that the limit on
1756 partitions is 15.
1757
1758 106 char Comtrol VS-1000 serial controller - alternate devices
1759 0 = /dev/cuv0 First VS-1000 port
1760 1 = /dev/cuv1 Second VS-1000 port
1761 ...
1762
1763 106 block Compaq Next Generation Drive Array, third controller
1764 0 = /dev/cciss/c2d0 First logical drive, whole disk
1765 16 = /dev/cciss/c2d1 Second logical drive, whole disk
1766 ...
1767 240 = /dev/cciss/c2d15 16th logical drive, whole disk
1768
1769 Partitions are handled the same way as for Mylex
1770 DAC960 (see major number 48) except that the limit on
1771 partitions is 15.
1772
1773 107 char 3Dfx Voodoo Graphics device
1774 0 = /dev/3dfx Primary 3Dfx graphics device
1775
1776 107 block Compaq Next Generation Drive Array, fourth controller
1777 0 = /dev/cciss/c3d0 First logical drive, whole disk
1778 16 = /dev/cciss/c3d1 Second logical drive, whole disk
1779 ...
1780 240 = /dev/cciss/c3d15 16th logical drive, whole disk
1781
1782 Partitions are handled the same way as for Mylex
1783 DAC960 (see major number 48) except that the limit on
1784 partitions is 15.
1785
1786 108 char Device independent PPP interface
1787 0 = /dev/ppp Device independent PPP interface
1788
1789 108 block Compaq Next Generation Drive Array, fifth controller
1790 0 = /dev/cciss/c4d0 First logical drive, whole disk
1791 16 = /dev/cciss/c4d1 Second logical drive, whole disk
1792 ...
1793 240 = /dev/cciss/c4d15 16th logical drive, whole disk
1794
1795 Partitions are handled the same way as for Mylex
1796 DAC960 (see major number 48) except that the limit on
1797 partitions is 15.
1798
1799 109 char Reserved for logical volume manager
1800
1801 109 block Compaq Next Generation Drive Array, sixth controller
1802 0 = /dev/cciss/c5d0 First logical drive, whole disk
1803 16 = /dev/cciss/c5d1 Second logical drive, whole disk
1804 ...
1805 240 = /dev/cciss/c5d15 16th logical drive, whole disk
1806
1807 Partitions are handled the same way as for Mylex
1808 DAC960 (see major number 48) except that the limit on
1809 partitions is 15.
1810
1811 110 char miroMEDIA Surround board
1812 0 = /dev/srnd0 First miroMEDIA Surround board
1813 1 = /dev/srnd1 Second miroMEDIA Surround board
1814 ...
1815
1816 110 block Compaq Next Generation Drive Array, seventh controller
1817 0 = /dev/cciss/c6d0 First logical drive, whole disk
1818 16 = /dev/cciss/c6d1 Second logical drive, whole disk
1819 ...
1820 240 = /dev/cciss/c6d15 16th logical drive, whole disk
1821
1822 Partitions are handled the same way as for Mylex
1823 DAC960 (see major number 48) except that the limit on
1824 partitions is 15.
1825
1826 111 char
1827
1828 111 block Compaq Next Generation Drive Array, eighth controller
1829 0 = /dev/cciss/c7d0 First logical drive, whole disk
1830 16 = /dev/cciss/c7d1 Second logical drive, whole disk
1831 ...
1832 240 = /dev/cciss/c7d15 16th logical drive, whole disk
1833
1834 Partitions are handled the same way as for Mylex
1835 DAC960 (see major number 48) except that the limit on
1836 partitions is 15.
1837
1838 112 char ISI serial card
1839 0 = /dev/ttyM0 First ISI port
1840 1 = /dev/ttyM1 Second ISI port
1841 ...
1842
1843 There is currently a device-naming conflict between
1844 these and PAM multimodems (major 78).
1845
1846 112 block IBM iSeries virtual disk
1847 0 = /dev/iseries/vda First virtual disk, whole disk
1848 8 = /dev/iseries/vdb Second virtual disk, whole disk
1849 ...
1850 200 = /dev/iseries/vdz 26th virtual disk, whole disk
1851 208 = /dev/iseries/vdaa 27th virtual disk, whole disk
1852 ...
1853 248 = /dev/iseries/vdaf 32nd virtual disk, whole disk
1854
1855 Partitions are handled in the same way as for IDE
1856 disks (see major number 3) except that the limit on
1857 partitions is 7.
1858
1859 113 char ISI serial card - alternate devices
1860 0 = /dev/cum0 Callout device for ttyM0
1861 1 = /dev/cum1 Callout device for ttyM1
1862 ...
1863
1864 113 block IBM iSeries virtual CD-ROM
1865 0 = /dev/iseries/vcda First virtual CD-ROM
1866 1 = /dev/iseries/vcdb Second virtual CD-ROM
1867 ...
1868
1869 114 char Picture Elements ISE board
1870 0 = /dev/ise0 First ISE board
1871 1 = /dev/ise1 Second ISE board
1872 ...
1873 128 = /dev/isex0 Control node for first ISE board
1874 129 = /dev/isex1 Control node for second ISE board
1875 ...
1876
1877 The ISE board is an embedded computer, optimized for
1878 image processing. The /dev/iseN nodes are the general
1879 I/O access to the board, the /dev/isex0 nodes command
1880 nodes used to control the board.
1881
1882 114 block IDE BIOS powered software RAID interfaces such as the
1883 Promise Fastrak
1884
1885 0 = /dev/ataraid/d0
1886 1 = /dev/ataraid/d0p1
1887 2 = /dev/ataraid/d0p2
1888 ...
1889 16 = /dev/ataraid/d1
1890 17 = /dev/ataraid/d1p1
1891 18 = /dev/ataraid/d1p2
1892 ...
1893 255 = /dev/ataraid/d15p15
1894
1895 Partitions are handled in the same way as for IDE
1896 disks (see major number 3) except that the limit on
1897 partitions is 15.
1898
1899 115 char TI link cable devices (115 was formerly the console driver speaker)
1900 0 = /dev/tipar0 Parallel cable on first parallel port
1901 ...
1902 7 = /dev/tipar7 Parallel cable on seventh parallel port
1903
1904 8 = /dev/tiser0 Serial cable on first serial port
1905 ...
1906 15 = /dev/tiser7 Serial cable on seventh serial port
1907
1908 16 = /dev/tiusb0 First USB cable
1909 ...
1910 47 = /dev/tiusb31 32nd USB cable
1911
1912 115 block NetWare (NWFS) Devices (0-255)
1913
1914 The NWFS (NetWare) devices are used to present a
1915 collection of NetWare Mirror Groups or NetWare
1916 Partitions as a logical storage segment for
1917 use in mounting NetWare volumes. A maximum of
1918 256 NetWare volumes can be supported in a single
1919 machine.
1920
1921 http://cgfa.telepac.pt/ftp2/kernel.org/linux/kernel/people/jmerkey/nwfs/
1922
1923 0 = /dev/nwfs/v0 First NetWare (NWFS) Logical Volume
1924 1 = /dev/nwfs/v1 Second NetWare (NWFS) Logical Volume
1925 2 = /dev/nwfs/v2 Third NetWare (NWFS) Logical Volume
1926 ...
1927 255 = /dev/nwfs/v255 Last NetWare (NWFS) Logical Volume
1928
1929 116 char Advanced Linux Sound Driver (ALSA)
1930
1931 116 block MicroMemory battery backed RAM adapter (NVRAM)
1932 Supports 16 boards, 15 partitions each.
1933 Requested by neilb at cse.unsw.edu.au.
1934
1935 0 = /dev/umem/d0 Whole of first board
1936 1 = /dev/umem/d0p1 First partition of first board
1937 2 = /dev/umem/d0p2 Second partition of first board
1938 15 = /dev/umem/d0p15 15th partition of first board
1939
1940 16 = /dev/umem/d1 Whole of second board
1941 17 = /dev/umem/d1p1 First partition of second board
1942 ...
1943 255= /dev/umem/d15p15 15th partition of 16th board.
1944
1945 117 char COSA/SRP synchronous serial card
1946 0 = /dev/cosa0c0 1st board, 1st channel
1947 1 = /dev/cosa0c1 1st board, 2nd channel
1948 ...
1949 16 = /dev/cosa1c0 2nd board, 1st channel
1950 17 = /dev/cosa1c1 2nd board, 2nd channel
1951 ...
1952
1953 117 block Enterprise Volume Management System (EVMS)
1954
1955 The EVMS driver uses a layered, plug-in model to provide
1956 unparalleled flexibility and extensibility in managing
1957 storage. This allows for easy expansion or customization
1958 of various levels of volume management. Requested by
1959 Mark Peloquin (peloquin at us.ibm.com).
1960
1961 Note: EVMS populates and manages all the devnodes in
1962 /dev/evms.
1963
1964 http://sf.net/projects/evms
1965
1966 0 = /dev/evms/block_device EVMS block device
1967 1 = /dev/evms/legacyname1 First EVMS legacy device
1968 2 = /dev/evms/legacyname2 Second EVMS legacy device
1969 ...
1970 Both ranges can grow (down or up) until they meet.
1971 ...
1972 254 = /dev/evms/EVMSname2 Second EVMS native device
1973 255 = /dev/evms/EVMSname1 First EVMS native device
1974
1975 Note: legacyname(s) are derived from the normal legacy
1976 device names. For example, /dev/hda5 would become
1977 /dev/evms/hda5.
1978
1979 118 char IBM Cryptographic Accelerator
1980 0 = /dev/ica Virtual interface to all IBM Crypto Accelerators
1981 1 = /dev/ica0 IBMCA Device 0
1982 2 = /dev/ica1 IBMCA Device 1
1983 ...
1984
1985 119 char VMware virtual network control
1986 0 = /dev/vnet0 1st virtual network
1987 1 = /dev/vnet1 2nd virtual network
1988 ...
1989
1990 120-127 char LOCAL/EXPERIMENTAL USE
1991
1992 120-127 block LOCAL/EXPERIMENTAL USE
1993 Allocated for local/experimental use. For devices not
1994 assigned official numbers, these ranges should be
1995 used in order to avoid conflicting with future assignments.
1996
1997 128-135 char Unix98 PTY masters
1998
1999 These devices should not have corresponding device
2000 nodes; instead they should be accessed through the
2001 /dev/ptmx cloning interface.
2002
2003 128 block SCSI disk devices (128-143)
2004 0 = /dev/sddy 129th SCSI disk whole disk
2005 16 = /dev/sddz 130th SCSI disk whole disk
2006 32 = /dev/sdea 131th SCSI disk whole disk
2007 ...
2008 240 = /dev/sden 144th SCSI disk whole disk
2009
2010 Partitions are handled in the same way as for IDE
2011 disks (see major number 3) except that the limit on
2012 partitions is 15.
2013
2014 129 block SCSI disk devices (144-159)
2015 0 = /dev/sdeo 145th SCSI disk whole disk
2016 16 = /dev/sdep 146th SCSI disk whole disk
2017 32 = /dev/sdeq 147th SCSI disk whole disk
2018 ...
2019 240 = /dev/sdfd 160th SCSI disk whole disk
2020
2021 Partitions are handled in the same way as for IDE
2022 disks (see major number 3) except that the limit on
2023 partitions is 15.
2024
2025 130 char (Misc devices)
2026
2027 130 block SCSI disk devices (160-175)
2028 0 = /dev/sdfe 161st SCSI disk whole disk
2029 16 = /dev/sdff 162nd SCSI disk whole disk
2030 32 = /dev/sdfg 163rd SCSI disk whole disk
2031 ...
2032 240 = /dev/sdft 176th SCSI disk whole disk
2033
2034 Partitions are handled in the same way as for IDE
2035 disks (see major number 3) except that the limit on
2036 partitions is 15.
2037
2038 131 block SCSI disk devices (176-191)
2039 0 = /dev/sdfu 177th SCSI disk whole disk
2040 16 = /dev/sdfv 178th SCSI disk whole disk
2041 32 = /dev/sdfw 179th SCSI disk whole disk
2042 ...
2043 240 = /dev/sdgj 192nd SCSI disk whole disk
2044
2045 Partitions are handled in the same way as for IDE
2046 disks (see major number 3) except that the limit on
2047 partitions is 15.
2048
2049 132 block SCSI disk devices (192-207)
2050 0 = /dev/sdgk 193rd SCSI disk whole disk
2051 16 = /dev/sdgl 194th SCSI disk whole disk
2052 32 = /dev/sdgm 195th SCSI disk whole disk
2053 ...
2054 240 = /dev/sdgz 208th SCSI disk whole disk
2055
2056 Partitions are handled in the same way as for IDE
2057 disks (see major number 3) except that the limit on
2058 partitions is 15.
2059
2060 133 block SCSI disk devices (208-223)
2061 0 = /dev/sdha 209th SCSI disk whole disk
2062 16 = /dev/sdhb 210th SCSI disk whole disk
2063 32 = /dev/sdhc 211th SCSI disk whole disk
2064 ...
2065 240 = /dev/sdhp 224th SCSI disk whole disk
2066
2067 Partitions are handled in the same way as for IDE
2068 disks (see major number 3) except that the limit on
2069 partitions is 15.
2070
2071 134 block SCSI disk devices (224-239)
2072 0 = /dev/sdhq 225th SCSI disk whole disk
2073 16 = /dev/sdhr 226th SCSI disk whole disk
2074 32 = /dev/sdhs 227th SCSI disk whole disk
2075 ...
2076 240 = /dev/sdif 240th SCSI disk whole disk
2077
2078 Partitions are handled in the same way as for IDE
2079 disks (see major number 3) except that the limit on
2080 partitions is 15.
2081
2082 135 block SCSI disk devices (240-255)
2083 0 = /dev/sdig 241st SCSI disk whole disk
2084 16 = /dev/sdih 242nd SCSI disk whole disk
2085 32 = /dev/sdih 243rd SCSI disk whole disk
2086 ...
2087 240 = /dev/sdiv 256th SCSI disk whole disk
2088
2089 Partitions are handled in the same way as for IDE
2090 disks (see major number 3) except that the limit on
2091 partitions is 15.
2092
2093 136-143 char Unix98 PTY slaves
2094 0 = /dev/pts/0 First Unix98 pseudo-TTY
2095 1 = /dev/pts/1 Second Unix98 pseudo-TTY
2096 ...
2097
2098 These device nodes are automatically generated with
2099 the proper permissions and modes by mounting the
2100 devpts filesystem onto /dev/pts with the appropriate
2101 mount options (distribution dependent, however, on
2102 *most* distributions the appropriate options are
2103 "mode=0620,gid=<gid of the "tty" group>".)
2104
2105 136 block Mylex DAC960 PCI RAID controller; ninth controller
2106 0 = /dev/rd/c8d0 First disk, whole disk
2107 8 = /dev/rd/c8d1 Second disk, whole disk
2108 ...
2109 248 = /dev/rd/c8d31 32nd disk, whole disk
2110
2111 Partitions are handled as for major 48.
2112
2113 137 block Mylex DAC960 PCI RAID controller; tenth controller
2114 0 = /dev/rd/c9d0 First disk, whole disk
2115 8 = /dev/rd/c9d1 Second disk, whole disk
2116 ...
2117 248 = /dev/rd/c9d31 32nd disk, whole disk
2118
2119 Partitions are handled as for major 48.
2120
2121 138 block Mylex DAC960 PCI RAID controller; eleventh controller
2122 0 = /dev/rd/c10d0 First disk, whole disk
2123 8 = /dev/rd/c10d1 Second disk, whole disk
2124 ...
2125 248 = /dev/rd/c10d31 32nd disk, whole disk
2126
2127 Partitions are handled as for major 48.
2128
2129 139 block Mylex DAC960 PCI RAID controller; twelfth controller
2130 0 = /dev/rd/c11d0 First disk, whole disk
2131 8 = /dev/rd/c11d1 Second disk, whole disk
2132 ...
2133 248 = /dev/rd/c11d31 32nd disk, whole disk
2134
2135 Partitions are handled as for major 48.
2136
2137 140 block Mylex DAC960 PCI RAID controller; thirteenth controller
2138 0 = /dev/rd/c12d0 First disk, whole disk
2139 8 = /dev/rd/c12d1 Second disk, whole disk
2140 ...
2141 248 = /dev/rd/c12d31 32nd disk, whole disk
2142
2143 Partitions are handled as for major 48.
2144
2145 141 block Mylex DAC960 PCI RAID controller; fourteenth controller
2146 0 = /dev/rd/c13d0 First disk, whole disk
2147 8 = /dev/rd/c13d1 Second disk, whole disk
2148 ...
2149 248 = /dev/rd/c13d31 32nd disk, whole disk
2150
2151 Partitions are handled as for major 48.
2152
2153 142 block Mylex DAC960 PCI RAID controller; fifteenth controller
2154 0 = /dev/rd/c14d0 First disk, whole disk
2155 8 = /dev/rd/c14d1 Second disk, whole disk
2156 ...
2157 248 = /dev/rd/c14d31 32nd disk, whole disk
2158
2159 Partitions are handled as for major 48.
2160
2161 143 block Mylex DAC960 PCI RAID controller; sixteenth controller
2162 0 = /dev/rd/c15d0 First disk, whole disk
2163 8 = /dev/rd/c15d1 Second disk, whole disk
2164 ...
2165 248 = /dev/rd/c15d31 32nd disk, whole disk
2166
2167 Partitions are handled as for major 48.
2168
2169 144 char Encapsulated PPP
2170 0 = /dev/pppox0 First PPP over Ethernet
2171 ...
2172 63 = /dev/pppox63 64th PPP over Ethernet
2173
2174 This is primarily used for ADSL.
2175
2176 The SST 5136-DN DeviceNet interface driver has been
2177 relocated to major 183 due to an unfortunate conflict.
2178
2179 144 block Expansion Area #1 for more non-device (e.g. NFS) mounts
2180 0 = mounted device 256
2181 255 = mounted device 511
2182
2183 145 char SAM9407-based soundcard
2184 0 = /dev/sam0_mixer
2185 1 = /dev/sam0_sequencer
2186 2 = /dev/sam0_midi00
2187 3 = /dev/sam0_dsp
2188 4 = /dev/sam0_audio
2189 6 = /dev/sam0_sndstat
2190 18 = /dev/sam0_midi01
2191 34 = /dev/sam0_midi02
2192 50 = /dev/sam0_midi03
2193 64 = /dev/sam1_mixer
2194 ...
2195 128 = /dev/sam2_mixer
2196 ...
2197 192 = /dev/sam3_mixer
2198 ...
2199
2200 Device functions match OSS, but offer a number of
2201 addons, which are sam9407 specific. OSS can be
2202 operated simultaneously, taking care of the codec.
2203
2204 145 block Expansion Area #2 for more non-device (e.g. NFS) mounts
2205 0 = mounted device 512
2206 255 = mounted device 767
2207
2208 146 char SYSTRAM SCRAMNet mirrored-memory network
2209 0 = /dev/scramnet0 First SCRAMNet device
2210 1 = /dev/scramnet1 Second SCRAMNet device
2211 ...
2212
2213 146 block Expansion Area #3 for more non-device (e.g. NFS) mounts
2214 0 = mounted device 768
2215 255 = mounted device 1023
2216
2217 147 char Aureal Semiconductor Vortex Audio device
2218 0 = /dev/aureal0 First Aureal Vortex
2219 1 = /dev/aureal1 Second Aureal Vortex
2220 ...
2221
2222 147 block Distributed Replicated Block Device (DRBD)
2223 0 = /dev/drbd0 First DRBD device
2224 1 = /dev/drbd1 Second DRBD device
2225 ...
2226
2227 148 char Technology Concepts serial card
2228 0 = /dev/ttyT0 First TCL port
2229 1 = /dev/ttyT1 Second TCL port
2230 ...
2231
2232 149 char Technology Concepts serial card - alternate devices
2233 0 = /dev/cut0 Callout device for ttyT0
2234 1 = /dev/cut0 Callout device for ttyT1
2235 ...
2236
2237 150 char Real-Time Linux FIFOs
2238 0 = /dev/rtf0 First RTLinux FIFO
2239 1 = /dev/rtf1 Second RTLinux FIFO
2240 ...
2241
2242 151 char DPT I2O SmartRaid V controller
2243 0 = /dev/dpti0 First DPT I2O adapter
2244 1 = /dev/dpti1 Second DPT I2O adapter
2245 ...
2246
2247 152 char EtherDrive Control Device
2248 0 = /dev/etherd/ctl Connect/Disconnect an EtherDrive
2249 1 = /dev/etherd/err Monitor errors
2250 2 = /dev/etherd/raw Raw AoE packet monitor
2251
2252 152 block EtherDrive Block Devices
2253 0 = /dev/etherd/0 EtherDrive 0
2254 ...
2255 255 = /dev/etherd/255 EtherDrive 255
2256
2257 153 char SPI Bus Interface (sometimes referred to as MicroWire)
2258 0 = /dev/spi0 First SPI device on the bus
2259 1 = /dev/spi1 Second SPI device on the bus
2260 ...
2261 15 = /dev/spi15 Sixteenth SPI device on the bus
2262
2263 153 block Enhanced Metadisk RAID (EMD) storage units
2264 0 = /dev/emd/0 First unit
2265 1 = /dev/emd/0p1 Partition 1 on First unit
2266 2 = /dev/emd/0p2 Partition 2 on First unit
2267 ...
2268 15 = /dev/emd/0p15 Partition 15 on First unit
2269
2270 16 = /dev/emd/1 Second unit
2271 32 = /dev/emd/2 Third unit
2272 ...
2273 240 = /dev/emd/15 Sixteenth unit
2274
2275 Partitions are handled in the same way as for IDE
2276 disks (see major number 3) except that the limit on
2277 partitions is 15.
2278
2279 154 char Specialix RIO serial card
2280 0 = /dev/ttySR0 First RIO port
2281 ...
2282 255 = /dev/ttySR255 256th RIO port
2283
2284 155 char Specialix RIO serial card - alternate devices
2285 0 = /dev/cusr0 Callout device for ttySR0
2286 ...
2287 255 = /dev/cusr255 Callout device for ttySR255
2288
2289 156 char Specialix RIO serial card
2290 0 = /dev/ttySR256 257th RIO port
2291 ...
2292 255 = /dev/ttySR511 512th RIO port
2293
2294 157 char Specialix RIO serial card - alternate devices
2295 0 = /dev/cusr256 Callout device for ttySR256
2296 ...
2297 255 = /dev/cusr511 Callout device for ttySR511
2298
2299 158 char Dialogic GammaLink fax driver
2300 0 = /dev/gfax0 GammaLink channel 0
2301 1 = /dev/gfax1 GammaLink channel 1
2302 ...
2303
2304 159 char RESERVED
2305
2306 159 block RESERVED
2307
2308 160 char General Purpose Instrument Bus (GPIB)
2309 0 = /dev/gpib0 First GPIB bus
2310 1 = /dev/gpib1 Second GPIB bus
2311 ...
2312
2313 160 block Carmel 8-port SATA Disks on First Controller
2314 0 = /dev/carmel/0 SATA disk 0 whole disk
2315 1 = /dev/carmel/0p1 SATA disk 0 partition 1
2316 ...
2317 31 = /dev/carmel/0p31 SATA disk 0 partition 31
2318
2319 32 = /dev/carmel/1 SATA disk 1 whole disk
2320 64 = /dev/carmel/2 SATA disk 2 whole disk
2321 ...
2322 224 = /dev/carmel/7 SATA disk 7 whole disk
2323
2324 Partitions are handled in the same way as for IDE
2325 disks (see major number 3) except that the limit on
2326 partitions is 31.
2327
2328 161 char IrCOMM devices (IrDA serial/parallel emulation)
2329 0 = /dev/ircomm0 First IrCOMM device
2330 1 = /dev/ircomm1 Second IrCOMM device
2331 ...
2332 16 = /dev/irlpt0 First IrLPT device
2333 17 = /dev/irlpt1 Second IrLPT device
2334 ...
2335
2336 161 block Carmel 8-port SATA Disks on Second Controller
2337 0 = /dev/carmel/8 SATA disk 8 whole disk
2338 1 = /dev/carmel/8p1 SATA disk 8 partition 1
2339 ...
2340 31 = /dev/carmel/8p31 SATA disk 8 partition 31
2341
2342 32 = /dev/carmel/9 SATA disk 9 whole disk
2343 64 = /dev/carmel/10 SATA disk 10 whole disk
2344 ...
2345 224 = /dev/carmel/15 SATA disk 15 whole disk
2346
2347 Partitions are handled in the same way as for IDE
2348 disks (see major number 3) except that the limit on
2349 partitions is 31.
2350
2351 162 char Raw block device interface
2352 0 = /dev/rawctl Raw I/O control device
2353 1 = /dev/raw/raw1 First raw I/O device
2354 2 = /dev/raw/raw2 Second raw I/O device
2355 ...
2356 max minor number of raw device is set by kernel config
2357 MAX_RAW_DEVS or raw module parameter 'max_raw_devs'
2358
2359 163 char
2360
2361 164 char Chase Research AT/PCI-Fast serial card
2362 0 = /dev/ttyCH0 AT/PCI-Fast board 0, port 0
2363 ...
2364 15 = /dev/ttyCH15 AT/PCI-Fast board 0, port 15
2365 16 = /dev/ttyCH16 AT/PCI-Fast board 1, port 0
2366 ...
2367 31 = /dev/ttyCH31 AT/PCI-Fast board 1, port 15
2368 32 = /dev/ttyCH32 AT/PCI-Fast board 2, port 0
2369 ...
2370 47 = /dev/ttyCH47 AT/PCI-Fast board 2, port 15
2371 48 = /dev/ttyCH48 AT/PCI-Fast board 3, port 0
2372 ...
2373 63 = /dev/ttyCH63 AT/PCI-Fast board 3, port 15
2374
2375 165 char Chase Research AT/PCI-Fast serial card - alternate devices
2376 0 = /dev/cuch0 Callout device for ttyCH0
2377 ...
2378 63 = /dev/cuch63 Callout device for ttyCH63
2379
2380 166 char ACM USB modems
2381 0 = /dev/ttyACM0 First ACM modem
2382 1 = /dev/ttyACM1 Second ACM modem
2383 ...
2384
2385 167 char ACM USB modems - alternate devices
2386 0 = /dev/cuacm0 Callout device for ttyACM0
2387 1 = /dev/cuacm1 Callout device for ttyACM1
2388 ...
2389
2390 168 char Eracom CSA7000 PCI encryption adaptor
2391 0 = /dev/ecsa0 First CSA7000
2392 1 = /dev/ecsa1 Second CSA7000
2393 ...
2394
2395 169 char Eracom CSA8000 PCI encryption adaptor
2396 0 = /dev/ecsa8-0 First CSA8000
2397 1 = /dev/ecsa8-1 Second CSA8000
2398 ...
2399
2400 170 char AMI MegaRAC remote access controller
2401 0 = /dev/megarac0 First MegaRAC card
2402 1 = /dev/megarac1 Second MegaRAC card
2403 ...
2404
2405 171 char Reserved for IEEE 1394 (Firewire)
2406
2407 172 char Moxa Intellio serial card
2408 0 = /dev/ttyMX0 First Moxa port
2409 1 = /dev/ttyMX1 Second Moxa port
2410 ...
2411 127 = /dev/ttyMX127 128th Moxa port
2412 128 = /dev/moxactl Moxa control port
2413
2414 173 char Moxa Intellio serial card - alternate devices
2415 0 = /dev/cumx0 Callout device for ttyMX0
2416 1 = /dev/cumx1 Callout device for ttyMX1
2417 ...
2418 127 = /dev/cumx127 Callout device for ttyMX127
2419
2420 174 char SmartIO serial card
2421 0 = /dev/ttySI0 First SmartIO port
2422 1 = /dev/ttySI1 Second SmartIO port
2423 ...
2424
2425 175 char SmartIO serial card - alternate devices
2426 0 = /dev/cusi0 Callout device for ttySI0
2427 1 = /dev/cusi1 Callout device for ttySI1
2428 ...
2429
2430 176 char nCipher nFast PCI crypto accelerator
2431 0 = /dev/nfastpci0 First nFast PCI device
2432 1 = /dev/nfastpci1 First nFast PCI device
2433 ...
2434
2435 177 char TI PCILynx memory spaces
2436 0 = /dev/pcilynx/aux0 AUX space of first PCILynx card
2437 ...
2438 15 = /dev/pcilynx/aux15 AUX space of 16th PCILynx card
2439 16 = /dev/pcilynx/rom0 ROM space of first PCILynx card
2440 ...
2441 31 = /dev/pcilynx/rom15 ROM space of 16th PCILynx card
2442 32 = /dev/pcilynx/ram0 RAM space of first PCILynx card
2443 ...
2444 47 = /dev/pcilynx/ram15 RAM space of 16th PCILynx card
2445
2446 178 char Giganet cLAN1xxx virtual interface adapter
2447 0 = /dev/clanvi0 First cLAN adapter
2448 1 = /dev/clanvi1 Second cLAN adapter
2449 ...
2450
2451 179 block MMC block devices
2452 0 = /dev/mmcblk0 First SD/MMC card
2453 1 = /dev/mmcblk0p1 First partition on first MMC card
2454 8 = /dev/mmcblk1 Second SD/MMC card
2455 ...
2456
2457 The start of next SD/MMC card can be configured with
2458 CONFIG_MMC_BLOCK_MINORS, or overridden at boot/modprobe
2459 time using the mmcblk.perdev_minors option. That would
2460 bump the offset between each card to be the configured
2461 value instead of the default 8.
2462
2463 179 char CCube DVXChip-based PCI products
2464 0 = /dev/dvxirq0 First DVX device
2465 1 = /dev/dvxirq1 Second DVX device
2466 ...
2467
2468 180 char USB devices
2469 0 = /dev/usb/lp0 First USB printer
2470 ...
2471 15 = /dev/usb/lp15 16th USB printer
2472 48 = /dev/usb/scanner0 First USB scanner
2473 ...
2474 63 = /dev/usb/scanner15 16th USB scanner
2475 64 = /dev/usb/rio500 Diamond Rio 500
2476 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de)
2477 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD)
2478 96 = /dev/usb/hiddev0 1st USB HID device
2479 ...
2480 111 = /dev/usb/hiddev15 16th USB HID device
2481 112 = /dev/usb/auer0 1st auerswald ISDN device
2482 ...
2483 127 = /dev/usb/auer15 16th auerswald ISDN device
2484 128 = /dev/usb/brlvgr0 First Braille Voyager device
2485 ...
2486 131 = /dev/usb/brlvgr3 Fourth Braille Voyager device
2487 132 = /dev/usb/idmouse ID Mouse (fingerprint scanner) device
2488 133 = /dev/usb/sisusbvga1 First SiSUSB VGA device
2489 ...
2490 140 = /dev/usb/sisusbvga8 Eighth SISUSB VGA device
2491 144 = /dev/usb/lcd USB LCD device
2492 160 = /dev/usb/legousbtower0 1st USB Legotower device
2493 ...
2494 175 = /dev/usb/legousbtower15 16th USB Legotower device
2495 176 = /dev/usb/usbtmc1 First USB TMC device
2496 ...
2497 191 = /dev/usb/usbtmc16 16th USB TMC device
2498 192 = /dev/usb/yurex1 First USB Yurex device
2499 ...
2500 209 = /dev/usb/yurex16 16th USB Yurex device
2501
2502 180 block USB block devices
2503 0 = /dev/uba First USB block device
2504 8 = /dev/ubb Second USB block device
2505 16 = /dev/ubc Third USB block device
2506 ...
2507
2508 181 char Conrad Electronic parallel port radio clocks
2509 0 = /dev/pcfclock0 First Conrad radio clock
2510 1 = /dev/pcfclock1 Second Conrad radio clock
2511 ...
2512
2513 182 char Picture Elements THR2 binarizer
2514 0 = /dev/pethr0 First THR2 board
2515 1 = /dev/pethr1 Second THR2 board
2516 ...
2517
2518 183 char SST 5136-DN DeviceNet interface
2519 0 = /dev/ss5136dn0 First DeviceNet interface
2520 1 = /dev/ss5136dn1 Second DeviceNet interface
2521 ...
2522
2523 This device used to be assigned to major number 144.
2524 It had to be moved due to an unfortunate conflict.
2525
2526 184 char Picture Elements' video simulator/sender
2527 0 = /dev/pevss0 First sender board
2528 1 = /dev/pevss1 Second sender board
2529 ...
2530
2531 185 char InterMezzo high availability file system
2532 0 = /dev/intermezzo0 First cache manager
2533 1 = /dev/intermezzo1 Second cache manager
2534 ...
2535
2536 See http://web.archive.org/web/20080115195241/
2537 http://inter-mezzo.org/index.html
2538
2539 186 char Object-based storage control device
2540 0 = /dev/obd0 First obd control device
2541 1 = /dev/obd1 Second obd control device
2542 ...
2543
2544 See ftp://ftp.lustre.org/pub/obd for code and information.
2545
2546 187 char DESkey hardware encryption device
2547 0 = /dev/deskey0 First DES key
2548 1 = /dev/deskey1 Second DES key
2549 ...
2550
2551 188 char USB serial converters
2552 0 = /dev/ttyUSB0 First USB serial converter
2553 1 = /dev/ttyUSB1 Second USB serial converter
2554 ...
2555
2556 189 char USB serial converters - alternate devices
2557 0 = /dev/cuusb0 Callout device for ttyUSB0
2558 1 = /dev/cuusb1 Callout device for ttyUSB1
2559 ...
2560
2561 190 char Kansas City tracker/tuner card
2562 0 = /dev/kctt0 First KCT/T card
2563 1 = /dev/kctt1 Second KCT/T card
2564 ...
2565
2566 191 char Reserved for PCMCIA
2567
2568 192 char Kernel profiling interface
2569 0 = /dev/profile Profiling control device
2570 1 = /dev/profile0 Profiling device for CPU 0
2571 2 = /dev/profile1 Profiling device for CPU 1
2572 ...
2573
2574 193 char Kernel event-tracing interface
2575 0 = /dev/trace Tracing control device
2576 1 = /dev/trace0 Tracing device for CPU 0
2577 2 = /dev/trace1 Tracing device for CPU 1
2578 ...
2579
2580 194 char linVideoStreams (LINVS)
2581 0 = /dev/mvideo/status0 Video compression status
2582 1 = /dev/mvideo/stream0 Video stream
2583 2 = /dev/mvideo/frame0 Single compressed frame
2584 3 = /dev/mvideo/rawframe0 Raw uncompressed frame
2585 4 = /dev/mvideo/codec0 Direct codec access
2586 5 = /dev/mvideo/video4linux0 Video4Linux compatibility
2587
2588 16 = /dev/mvideo/status1 Second device
2589 ...
2590 32 = /dev/mvideo/status2 Third device
2591 ...
2592 ...
2593 240 = /dev/mvideo/status15 16th device
2594 ...
2595
2596 195 char Nvidia graphics devices
2597 0 = /dev/nvidia0 First Nvidia card
2598 1 = /dev/nvidia1 Second Nvidia card
2599 ...
2600 255 = /dev/nvidiactl Nvidia card control device
2601
2602 196 char Tormenta T1 card
2603 0 = /dev/tor/0 Master control channel for all cards
2604 1 = /dev/tor/1 First DS0
2605 2 = /dev/tor/2 Second DS0
2606 ...
2607 48 = /dev/tor/48 48th DS0
2608 49 = /dev/tor/49 First pseudo-channel
2609 50 = /dev/tor/50 Second pseudo-channel
2610 ...
2611
2612 197 char OpenTNF tracing facility
2613 0 = /dev/tnf/t0 Trace 0 data extraction
2614 1 = /dev/tnf/t1 Trace 1 data extraction
2615 ...
2616 128 = /dev/tnf/status Tracing facility status
2617 130 = /dev/tnf/trace Tracing device
2618
2619 198 char Total Impact TPMP2 quad coprocessor PCI card
2620 0 = /dev/tpmp2/0 First card
2621 1 = /dev/tpmp2/1 Second card
2622 ...
2623
2624 199 char Veritas volume manager (VxVM) volumes
2625 0 = /dev/vx/rdsk/*/* First volume
2626 1 = /dev/vx/rdsk/*/* Second volume
2627 ...
2628
2629 199 block Veritas volume manager (VxVM) volumes
2630 0 = /dev/vx/dsk/*/* First volume
2631 1 = /dev/vx/dsk/*/* Second volume
2632 ...
2633
2634 The namespace in these directories is maintained by
2635 the user space VxVM software.
2636
2637 200 char Veritas VxVM configuration interface
2638 0 = /dev/vx/config Configuration access node
2639 1 = /dev/vx/trace Volume i/o trace access node
2640 2 = /dev/vx/iod Volume i/o daemon access node
2641 3 = /dev/vx/info Volume information access node
2642 4 = /dev/vx/task Volume tasks access node
2643 5 = /dev/vx/taskmon Volume tasks monitor daemon
2644
2645 201 char Veritas VxVM dynamic multipathing driver
2646 0 = /dev/vx/rdmp/* First multipath device
2647 1 = /dev/vx/rdmp/* Second multipath device
2648 ...
2649 201 block Veritas VxVM dynamic multipathing driver
2650 0 = /dev/vx/dmp/* First multipath device
2651 1 = /dev/vx/dmp/* Second multipath device
2652 ...
2653
2654 The namespace in these directories is maintained by
2655 the user space VxVM software.
2656
2657 202 char CPU model-specific registers
2658 0 = /dev/cpu/0/msr MSRs on CPU 0
2659 1 = /dev/cpu/1/msr MSRs on CPU 1
2660 ...
2661
2662 202 block Xen Virtual Block Device
2663 0 = /dev/xvda First Xen VBD whole disk
2664 16 = /dev/xvdb Second Xen VBD whole disk
2665 32 = /dev/xvdc Third Xen VBD whole disk
2666 ...
2667 240 = /dev/xvdp Sixteenth Xen VBD whole disk
2668
2669 Partitions are handled in the same way as for IDE
2670 disks (see major number 3) except that the limit on
2671 partitions is 15.
2672
2673 203 char CPU CPUID information
2674 0 = /dev/cpu/0/cpuid CPUID on CPU 0
2675 1 = /dev/cpu/1/cpuid CPUID on CPU 1
2676 ...
2677
2678 204 char Low-density serial ports
2679 0 = /dev/ttyLU0 LinkUp Systems L72xx UART - port 0
2680 1 = /dev/ttyLU1 LinkUp Systems L72xx UART - port 1
2681 2 = /dev/ttyLU2 LinkUp Systems L72xx UART - port 2
2682 3 = /dev/ttyLU3 LinkUp Systems L72xx UART - port 3
2683 4 = /dev/ttyFB0 Intel Footbridge (ARM)
2684 5 = /dev/ttySA0 StrongARM builtin serial port 0
2685 6 = /dev/ttySA1 StrongARM builtin serial port 1
2686 7 = /dev/ttySA2 StrongARM builtin serial port 2
2687 8 = /dev/ttySC0 SCI serial port (SuperH) - port 0
2688 9 = /dev/ttySC1 SCI serial port (SuperH) - port 1
2689 10 = /dev/ttySC2 SCI serial port (SuperH) - port 2
2690 11 = /dev/ttySC3 SCI serial port (SuperH) - port 3
2691 12 = /dev/ttyFW0 Firmware console - port 0
2692 13 = /dev/ttyFW1 Firmware console - port 1
2693 14 = /dev/ttyFW2 Firmware console - port 2
2694 15 = /dev/ttyFW3 Firmware console - port 3
2695 16 = /dev/ttyAM0 ARM "AMBA" serial port 0
2696 ...
2697 31 = /dev/ttyAM15 ARM "AMBA" serial port 15
2698 32 = /dev/ttyDB0 DataBooster serial port 0
2699 ...
2700 39 = /dev/ttyDB7 DataBooster serial port 7
2701 40 = /dev/ttySG0 SGI Altix console port
2702 41 = /dev/ttySMX0 Motorola i.MX - port 0
2703 42 = /dev/ttySMX1 Motorola i.MX - port 1
2704 43 = /dev/ttySMX2 Motorola i.MX - port 2
ecd6bf67
MG		 2705 44 = /dev/ttyMM0 Marvell MPSC - port 0 (obsolete unused)
2706 45 = /dev/ttyMM1 Marvell MPSC - port 1 (obsolete unused)
07c7e30c
JN		 2707 46 = /dev/ttyCPM0 PPC CPM (SCC or SMC) - port 0
2708 ...
2709 47 = /dev/ttyCPM5 PPC CPM (SCC or SMC) - port 5
2710 50 = /dev/ttyIOC0 Altix serial card
2711 ...
2712 81 = /dev/ttyIOC31 Altix serial card
2713 82 = /dev/ttyVR0 NEC VR4100 series SIU
2714 83 = /dev/ttyVR1 NEC VR4100 series DSIU
2715 84 = /dev/ttyIOC84 Altix ioc4 serial card
2716 ...
2717 115 = /dev/ttyIOC115 Altix ioc4 serial card
2718 116 = /dev/ttySIOC0 Altix ioc3 serial card
2719 ...
2720 147 = /dev/ttySIOC31 Altix ioc3 serial card
2721 148 = /dev/ttyPSC0 PPC PSC - port 0
2722 ...
2723 153 = /dev/ttyPSC5 PPC PSC - port 5
2724 154 = /dev/ttyAT0 ATMEL serial port 0
2725 ...
2726 169 = /dev/ttyAT15 ATMEL serial port 15
2727 170 = /dev/ttyNX0 Hilscher netX serial port 0
2728 ...
2729 185 = /dev/ttyNX15 Hilscher netX serial port 15
2730 186 = /dev/ttyJ0 JTAG1 DCC protocol based serial port emulation
2731 187 = /dev/ttyUL0 Xilinx uartlite - port 0
2732 ...
2733 190 = /dev/ttyUL3 Xilinx uartlite - port 3
2734 191 = /dev/xvc0 Xen virtual console - port 0
2735 192 = /dev/ttyPZ0 pmac_zilog - port 0
2736 ...
2737 195 = /dev/ttyPZ3 pmac_zilog - port 3
2738 196 = /dev/ttyTX0 TX39/49 serial port 0
2739 ...
2740 204 = /dev/ttyTX7 TX39/49 serial port 7
2741 205 = /dev/ttySC0 SC26xx serial port 0
2742 206 = /dev/ttySC1 SC26xx serial port 1
2743 207 = /dev/ttySC2 SC26xx serial port 2
2744 208 = /dev/ttySC3 SC26xx serial port 3
2745 209 = /dev/ttyMAX0 MAX3100 serial port 0
2746 210 = /dev/ttyMAX1 MAX3100 serial port 1
2747 211 = /dev/ttyMAX2 MAX3100 serial port 2
2748 212 = /dev/ttyMAX3 MAX3100 serial port 3
2749
2750 205 char Low-density serial ports (alternate device)
2751 0 = /dev/culu0 Callout device for ttyLU0
2752 1 = /dev/culu1 Callout device for ttyLU1
2753 2 = /dev/culu2 Callout device for ttyLU2
2754 3 = /dev/culu3 Callout device for ttyLU3
2755 4 = /dev/cufb0 Callout device for ttyFB0
2756 5 = /dev/cusa0 Callout device for ttySA0
2757 6 = /dev/cusa1 Callout device for ttySA1
2758 7 = /dev/cusa2 Callout device for ttySA2
2759 8 = /dev/cusc0 Callout device for ttySC0
2760 9 = /dev/cusc1 Callout device for ttySC1
2761 10 = /dev/cusc2 Callout device for ttySC2
2762 11 = /dev/cusc3 Callout device for ttySC3
2763 12 = /dev/cufw0 Callout device for ttyFW0
2764 13 = /dev/cufw1 Callout device for ttyFW1
2765 14 = /dev/cufw2 Callout device for ttyFW2
2766 15 = /dev/cufw3 Callout device for ttyFW3
2767 16 = /dev/cuam0 Callout device for ttyAM0
2768 ...
2769 31 = /dev/cuam15 Callout device for ttyAM15
2770 32 = /dev/cudb0 Callout device for ttyDB0
2771 ...
2772 39 = /dev/cudb7 Callout device for ttyDB7
2773 40 = /dev/cusg0 Callout device for ttySG0
2774 41 = /dev/ttycusmx0 Callout device for ttySMX0
2775 42 = /dev/ttycusmx1 Callout device for ttySMX1
2776 43 = /dev/ttycusmx2 Callout device for ttySMX2
2777 46 = /dev/cucpm0 Callout device for ttyCPM0
2778 ...
2779 49 = /dev/cucpm5 Callout device for ttyCPM5
2780 50 = /dev/cuioc40 Callout device for ttyIOC40
2781 ...
2782 81 = /dev/cuioc431 Callout device for ttyIOC431
2783 82 = /dev/cuvr0 Callout device for ttyVR0
2784 83 = /dev/cuvr1 Callout device for ttyVR1
2785
2786 206 char OnStream SC-x0 tape devices
2787 0 = /dev/osst0 First OnStream SCSI tape, mode 0
2788 1 = /dev/osst1 Second OnStream SCSI tape, mode 0
2789 ...
2790 32 = /dev/osst0l First OnStream SCSI tape, mode 1
2791 33 = /dev/osst1l Second OnStream SCSI tape, mode 1
2792 ...
2793 64 = /dev/osst0m First OnStream SCSI tape, mode 2
2794 65 = /dev/osst1m Second OnStream SCSI tape, mode 2
2795 ...
2796 96 = /dev/osst0a First OnStream SCSI tape, mode 3
2797 97 = /dev/osst1a Second OnStream SCSI tape, mode 3
2798 ...
2799 128 = /dev/nosst0 No rewind version of /dev/osst0
2800 129 = /dev/nosst1 No rewind version of /dev/osst1
2801 ...
2802 160 = /dev/nosst0l No rewind version of /dev/osst0l
2803 161 = /dev/nosst1l No rewind version of /dev/osst1l
2804 ...
2805 192 = /dev/nosst0m No rewind version of /dev/osst0m
2806 193 = /dev/nosst1m No rewind version of /dev/osst1m
2807 ...
2808 224 = /dev/nosst0a No rewind version of /dev/osst0a
2809 225 = /dev/nosst1a No rewind version of /dev/osst1a
2810 ...
2811
2812 The OnStream SC-x0 SCSI tapes do not support the
2813 standard SCSI SASD command set and therefore need
2814 their own driver "osst". Note that the IDE, USB (and
2815 maybe ParPort) versions may be driven via ide-scsi or
2816 usb-storage SCSI emulation and this osst device and
2817 driver as well. The ADR-x0 drives are QIC-157
2818 compliant and don't need osst.
2819
2820 207 char Compaq ProLiant health feature indicate
2821 0 = /dev/cpqhealth/cpqw Redirector interface
2822 1 = /dev/cpqhealth/crom EISA CROM
2823 2 = /dev/cpqhealth/cdt Data Table
2824 3 = /dev/cpqhealth/cevt Event Log
2825 4 = /dev/cpqhealth/casr Automatic Server Recovery
2826 5 = /dev/cpqhealth/cecc ECC Memory
2827 6 = /dev/cpqhealth/cmca Machine Check Architecture
2828 7 = /dev/cpqhealth/ccsm Deprecated CDT
2829 8 = /dev/cpqhealth/cnmi NMI Handling
2830 9 = /dev/cpqhealth/css Sideshow Management
2831 10 = /dev/cpqhealth/cram CMOS interface
2832 11 = /dev/cpqhealth/cpci PCI IRQ interface
2833
2834 208 char User space serial ports
2835 0 = /dev/ttyU0 First user space serial port
2836 1 = /dev/ttyU1 Second user space serial port
2837 ...
2838
2839 209 char User space serial ports (alternate devices)
2840 0 = /dev/cuu0 Callout device for ttyU0
2841 1 = /dev/cuu1 Callout device for ttyU1
2842 ...
2843
2844 210 char SBE, Inc. sync/async serial card
2845 0 = /dev/sbei/wxcfg0 Configuration device for board 0
2846 1 = /dev/sbei/dld0 Download device for board 0
2847 2 = /dev/sbei/wan00 WAN device, port 0, board 0
2848 3 = /dev/sbei/wan01 WAN device, port 1, board 0
2849 4 = /dev/sbei/wan02 WAN device, port 2, board 0
2850 5 = /dev/sbei/wan03 WAN device, port 3, board 0
2851 6 = /dev/sbei/wanc00 WAN clone device, port 0, board 0
2852 7 = /dev/sbei/wanc01 WAN clone device, port 1, board 0
2853 8 = /dev/sbei/wanc02 WAN clone device, port 2, board 0
2854 9 = /dev/sbei/wanc03 WAN clone device, port 3, board 0
2855 10 = /dev/sbei/wxcfg1 Configuration device for board 1
2856 11 = /dev/sbei/dld1 Download device for board 1
2857 12 = /dev/sbei/wan10 WAN device, port 0, board 1
2858 13 = /dev/sbei/wan11 WAN device, port 1, board 1
2859 14 = /dev/sbei/wan12 WAN device, port 2, board 1
2860 15 = /dev/sbei/wan13 WAN device, port 3, board 1
2861 16 = /dev/sbei/wanc10 WAN clone device, port 0, board 1
2862 17 = /dev/sbei/wanc11 WAN clone device, port 1, board 1
2863 18 = /dev/sbei/wanc12 WAN clone device, port 2, board 1
2864 19 = /dev/sbei/wanc13 WAN clone device, port 3, board 1
2865 ...
2866
2867 Yes, each board is really spaced 10 (decimal) apart.
2868
2869 211 char Addinum CPCI1500 digital I/O card
2870 0 = /dev/addinum/cpci1500/0 First CPCI1500 card
2871 1 = /dev/addinum/cpci1500/1 Second CPCI1500 card
2872 ...
2873
2874 212 char LinuxTV.org DVB driver subsystem
2875 0 = /dev/dvb/adapter0/video0 first video decoder of first card
2876 1 = /dev/dvb/adapter0/audio0 first audio decoder of first card
2877 2 = /dev/dvb/adapter0/sec0 (obsolete/unused)
2878 3 = /dev/dvb/adapter0/frontend0 first frontend device of first card
2879 4 = /dev/dvb/adapter0/demux0 first demux device of first card
2880 5 = /dev/dvb/adapter0/dvr0 first digital video recoder device of first card
2881 6 = /dev/dvb/adapter0/ca0 first common access port of first card
2882 7 = /dev/dvb/adapter0/net0 first network device of first card
2883 8 = /dev/dvb/adapter0/osd0 first on-screen-display device of first card
2884 9 = /dev/dvb/adapter0/video1 second video decoder of first card
2885 ...
2886 64 = /dev/dvb/adapter1/video0 first video decoder of second card
2887 ...
2888 128 = /dev/dvb/adapter2/video0 first video decoder of third card
2889 ...
2890 196 = /dev/dvb/adapter3/video0 first video decoder of fourth card
2891
2892 216 char Bluetooth RFCOMM TTY devices
2893 0 = /dev/rfcomm0 First Bluetooth RFCOMM TTY device
2894 1 = /dev/rfcomm1 Second Bluetooth RFCOMM TTY device
2895 ...
2896
2897 217 char Bluetooth RFCOMM TTY devices (alternate devices)
2898 0 = /dev/curf0 Callout device for rfcomm0
2899 1 = /dev/curf1 Callout device for rfcomm1
2900 ...
2901
2902 218 char The Logical Company bus Unibus/Qbus adapters
2903 0 = /dev/logicalco/bci/0 First bus adapter
2904 1 = /dev/logicalco/bci/1 First bus adapter
2905 ...
2906
2907 219 char The Logical Company DCI-1300 digital I/O card
2908 0 = /dev/logicalco/dci1300/0 First DCI-1300 card
2909 1 = /dev/logicalco/dci1300/1 Second DCI-1300 card
2910 ...
2911
2912 220 char Myricom Myrinet "GM" board
2913 0 = /dev/myricom/gm0 First Myrinet GM board
2914 1 = /dev/myricom/gmp0 First board "root access"
2915 2 = /dev/myricom/gm1 Second Myrinet GM board
2916 3 = /dev/myricom/gmp1 Second board "root access"
2917 ...
2918
2919 221 char VME bus
2920 0 = /dev/bus/vme/m0 First master image
2921 1 = /dev/bus/vme/m1 Second master image
2922 2 = /dev/bus/vme/m2 Third master image
2923 3 = /dev/bus/vme/m3 Fourth master image
2924 4 = /dev/bus/vme/s0 First slave image
2925 5 = /dev/bus/vme/s1 Second slave image
2926 6 = /dev/bus/vme/s2 Third slave image
2927 7 = /dev/bus/vme/s3 Fourth slave image
2928 8 = /dev/bus/vme/ctl Control
2929
2930 It is expected that all VME bus drivers will use the
2931 same interface. For interface documentation see
2932 http://www.vmelinux.org/.
2933
2934 224 char A2232 serial card
2935 0 = /dev/ttyY0 First A2232 port
2936 1 = /dev/ttyY1 Second A2232 port
2937 ...
2938
2939 225 char A2232 serial card (alternate devices)
2940 0 = /dev/cuy0 Callout device for ttyY0
2941 1 = /dev/cuy1 Callout device for ttyY1
2942 ...
2943
2944 226 char Direct Rendering Infrastructure (DRI)
2945 0 = /dev/dri/card0 First graphics card
2946 1 = /dev/dri/card1 Second graphics card
2947 ...
2948
2949 227 char IBM 3270 terminal Unix tty access
2950 1 = /dev/3270/tty1 First 3270 terminal
2951 2 = /dev/3270/tty2 Seconds 3270 terminal
2952 ...
2953
2954 228 char IBM 3270 terminal block-mode access
2955 0 = /dev/3270/tub Controlling interface
2956 1 = /dev/3270/tub1 First 3270 terminal
2957 2 = /dev/3270/tub2 Second 3270 terminal
2958 ...
2959
2960 229 char IBM iSeries/pSeries virtual console
2961 0 = /dev/hvc0 First console port
2962 1 = /dev/hvc1 Second console port
2963 ...
2964
2965 230 char IBM iSeries virtual tape
2966 0 = /dev/iseries/vt0 First virtual tape, mode 0
2967 1 = /dev/iseries/vt1 Second virtual tape, mode 0
2968 ...
2969 32 = /dev/iseries/vt0l First virtual tape, mode 1
2970 33 = /dev/iseries/vt1l Second virtual tape, mode 1
2971 ...
2972 64 = /dev/iseries/vt0m First virtual tape, mode 2
2973 65 = /dev/iseries/vt1m Second virtual tape, mode 2
2974 ...
2975 96 = /dev/iseries/vt0a First virtual tape, mode 3
2976 97 = /dev/iseries/vt1a Second virtual tape, mode 3
2977 ...
2978 128 = /dev/iseries/nvt0 First virtual tape, mode 0, no rewind
2979 129 = /dev/iseries/nvt1 Second virtual tape, mode 0, no rewind
2980 ...
2981 160 = /dev/iseries/nvt0l First virtual tape, mode 1, no rewind
2982 161 = /dev/iseries/nvt1l Second virtual tape, mode 1, no rewind
2983 ...
2984 192 = /dev/iseries/nvt0m First virtual tape, mode 2, no rewind
2985 193 = /dev/iseries/nvt1m Second virtual tape, mode 2, no rewind
2986 ...
2987 224 = /dev/iseries/nvt0a First virtual tape, mode 3, no rewind
2988 225 = /dev/iseries/nvt1a Second virtual tape, mode 3, no rewind
2989 ...
2990
2991 "No rewind" refers to the omission of the default
2992 automatic rewind on device close. The MTREW or MTOFFL
2993 ioctl()'s can be used to rewind the tape regardless of
2994 the device used to access it.
2995
2996 231 char InfiniBand
2997 0 = /dev/infiniband/umad0
2998 1 = /dev/infiniband/umad1
2999 ...
3000 63 = /dev/infiniband/umad63 63rd InfiniBandMad device
3001 64 = /dev/infiniband/issm0 First InfiniBand IsSM device
3002 65 = /dev/infiniband/issm1 Second InfiniBand IsSM device
3003 ...
3004 127 = /dev/infiniband/issm63 63rd InfiniBand IsSM device
3005 128 = /dev/infiniband/uverbs0 First InfiniBand verbs device
3006 129 = /dev/infiniband/uverbs1 Second InfiniBand verbs device
3007 ...
3008 159 = /dev/infiniband/uverbs31 31st InfiniBand verbs device
3009
3010 232 char Biometric Devices
3011 0 = /dev/biometric/sensor0/fingerprint first fingerprint sensor on first device
3012 1 = /dev/biometric/sensor0/iris first iris sensor on first device
3013 2 = /dev/biometric/sensor0/retina first retina sensor on first device
3014 3 = /dev/biometric/sensor0/voiceprint first voiceprint sensor on first device
3015 4 = /dev/biometric/sensor0/facial first facial sensor on first device
3016 5 = /dev/biometric/sensor0/hand first hand sensor on first device
3017 ...
3018 10 = /dev/biometric/sensor1/fingerprint first fingerprint sensor on second device
3019 ...
3020 20 = /dev/biometric/sensor2/fingerprint first fingerprint sensor on third device
3021 ...
3022
3023 233 char PathScale InfiniPath interconnect
3024 0 = /dev/ipath Primary device for programs (any unit)
3025 1 = /dev/ipath0 Access specifically to unit 0
3026 2 = /dev/ipath1 Access specifically to unit 1
3027 ...
3028 4 = /dev/ipath3 Access specifically to unit 3
3029 129 = /dev/ipath_sma Device used by Subnet Management Agent
3030 130 = /dev/ipath_diag Device used by diagnostics programs
3031
3032 234-254 char RESERVED FOR DYNAMIC ASSIGNMENT
3033 Character devices that request a dynamic allocation of major number will
3034 take numbers starting from 254 and downward.
3035
3036 240-254 block LOCAL/EXPERIMENTAL USE
3037 Allocated for local/experimental use. For devices not
3038 assigned official numbers, these ranges should be
3039 used in order to avoid conflicting with future assignments.
3040
3041 255 char RESERVED
3042
3043 255 block RESERVED
3044
3045 This major is reserved to assist the expansion to a
3046 larger number space. No device nodes with this major
3047 should ever be created on the filesystem.
3048 (This is probably not true anymore, but I'll leave it
3049 for now /Torben)
3050
3051 ---LARGE MAJORS!!!!!---
3052
3053 256 char Equinox SST multi-port serial boards
3054 0 = /dev/ttyEQ0 First serial port on first Equinox SST board
3055 127 = /dev/ttyEQ127 Last serial port on first Equinox SST board
3056 128 = /dev/ttyEQ128 First serial port on second Equinox SST board
3057 ...
3058 1027 = /dev/ttyEQ1027 Last serial port on eighth Equinox SST board
3059
3060 256 block Resident Flash Disk Flash Translation Layer
3061 0 = /dev/rfda First RFD FTL layer
3062 16 = /dev/rfdb Second RFD FTL layer
3063 ...
3064 240 = /dev/rfdp 16th RFD FTL layer
3065
3066 257 char Phoenix Technologies Cryptographic Services Driver
3067 0 = /dev/ptlsec Crypto Services Driver
3068
3069 257 block SSFDC Flash Translation Layer filesystem
3070 0 = /dev/ssfdca First SSFDC layer
3071 8 = /dev/ssfdcb Second SSFDC layer
3072 16 = /dev/ssfdcc Third SSFDC layer
3073 24 = /dev/ssfdcd 4th SSFDC layer
3074 32 = /dev/ssfdce 5th SSFDC layer
3075 40 = /dev/ssfdcf 6th SSFDC layer
3076 48 = /dev/ssfdcg 7th SSFDC layer
3077 56 = /dev/ssfdch 8th SSFDC layer
3078
3079 258 block ROM/Flash read-only translation layer
3080 0 = /dev/blockrom0 First ROM card's translation layer interface
3081 1 = /dev/blockrom1 Second ROM card's translation layer interface
3082 ...
3083
3084 259 block Block Extended Major
3085 Used dynamically to hold additional partition minor
3086 numbers and allow large numbers of partitions per device
3087
3088 259 char FPGA configuration interfaces
3089 0 = /dev/icap0 First Xilinx internal configuration
3090 1 = /dev/icap1 Second Xilinx internal configuration
3091
3092 260 char OSD (Object-based-device) SCSI Device
3093 0 = /dev/osd0 First OSD Device
3094 1 = /dev/osd1 Second OSD Device
3095 ...
3096 255 = /dev/osd255 256th OSD Device
a5d31a3f
LG		 3097
3098 384-511 char RESERVED FOR DYNAMIC ASSIGNMENT
3099 Character devices that request a dynamic allocation of major
3100 number will take numbers starting from 511 and downward,
3101 once the 234-254 range is full.
Linux 6.x block layer and io_uring tree(s)