projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | Kernel driver i2c-viapro |
| 2 | ||
| 3 | Supported adapters: | |
| 4 | * VIA Technologies, Inc. VT82C596A/B | |
| 5 | Datasheet: Sometimes available at the VIA website | |
| 6 | ||
| 5f49ef8e | 7 | * VIA Technologies, Inc. VT82C686A/B |
| 1da177e4 LT |
8 | Datasheet: Sometimes available at the VIA website |
| 9 | ||
| c243353a | 10 | * VIA Technologies, Inc. VT8231, VT8233, VT8233A |
| 8750197f | 11 | Datasheet: available on request from VIA |
| 1da177e4 | 12 | |
| 0d227a7e | 13 | * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8237S, VT8251 |
| c243353a RM |
14 | Datasheet: available on request and under NDA from VIA |
| 15 | ||
| ab6a6ed2 JD |
16 | * VIA Technologies, Inc. CX700 |
| 17 | Datasheet: available on request and under NDA from VIA | |
| 18 | ||
| b806a71a RM |
19 | * VIA Technologies, Inc. VX800/VX820 |
| 20 | Datasheet: available on http://linux.via.com.tw | |
| 21 | ||
| a231591f | 22 | * VIA Technologies, Inc. VX855/VX875 |
| 01d56a6a JD |
23 | Datasheet: available on http://linux.via.com.tw |
| 24 | ||
| 25 | * VIA Technologies, Inc. VX900 | |
| 26 | Datasheet: available on http://linux.via.com.tw | |
| a231591f | 27 | |
| 1da177e4 | 28 | Authors: |
| be2a608b | 29 | Kyösti Mälkki <kmalkki@cc.hut.fi>, |
| f1183014 | 30 | Mark D. Studebaker <mdsxyz123@yahoo.com>, |
| 7c81c60f | 31 | Jean Delvare <jdelvare@suse.de> |
| 1da177e4 LT |
32 | |
| 33 | Module Parameters | |
| 34 | ----------------- | |
| 35 | ||
| 36 | * force: int | |
| 37 | Forcibly enable the SMBus controller. DANGEROUS! | |
| 38 | * force_addr: int | |
| 39 | Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS! | |
| 40 | ||
| 41 | Description | |
| 42 | ----------- | |
| 43 | ||
| 44 | i2c-viapro is a true SMBus host driver for motherboards with one of the | |
| aaf7f147 | 45 | supported VIA south bridges. |
| 1da177e4 LT |
46 | |
| 47 | Your lspci -n listing must show one of these : | |
| 48 | ||
| aaf7f147 JD |
49 | device 1106:3050 (VT82C596A function 3) |
| 50 | device 1106:3051 (VT82C596B function 3) | |
| 1da177e4 LT |
51 | device 1106:3057 (VT82C686 function 4) |
| 52 | device 1106:3074 (VT8233) | |
| 53 | device 1106:3147 (VT8233A) | |
| aaf7f147 JD |
54 | device 1106:8235 (VT8231 function 4) |
| 55 | device 1106:3177 (VT8235) | |
| 56 | device 1106:3227 (VT8237R) | |
| c243353a | 57 | device 1106:3337 (VT8237A) |
| 0d227a7e | 58 | device 1106:3372 (VT8237S) |
| c243353a | 59 | device 1106:3287 (VT8251) |
| ab6a6ed2 | 60 | device 1106:8324 (CX700) |
| b806a71a | 61 | device 1106:8353 (VX800/VX820) |
| a231591f | 62 | device 1106:8409 (VX855/VX875) |
| 01d56a6a | 63 | device 1106:8410 (VX900) |
| 1da177e4 LT |
64 | |
| 65 | If none of these show up, you should look in the BIOS for settings like | |
| 66 | enable ACPI / SMBus or even USB. | |
| f1183014 JD |
67 | |
| 68 | Except for the oldest chips (VT82C596A/B, VT82C686A and most probably | |
| 69 | VT8231), this driver supports I2C block transactions. Such transactions | |
| 70 | are mainly useful to read from and write to EEPROMs. | |
| ab6a6ed2 | 71 | |
| b806a71a RM |
72 | The CX700/VX800/VX820 additionally appears to support SMBus PEC, although |
| 73 | this driver doesn't implement it yet. |