| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | Kernel driver i2c-viapro |
| 2 | |
| 3 | Supported adapters: |
| 4 | * VIA Technologies, Inc. VT82C596A/B |
| 5 | Datasheet: Sometimes available at the VIA website |
| 6 | |
| Jean Delvare | 5f49ef8 | 2005-09-22 21:50:47 +0200 | [diff] [blame] | 7 | * VIA Technologies, Inc. VT82C686A/B |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | Datasheet: Sometimes available at the VIA website |
| 9 | |
| Rudolf Marek | c243353 | 2006-09-03 22:35:21 +0200 | [diff] [blame] | 10 | * VIA Technologies, Inc. VT8231, VT8233, VT8233A |
| Jean Delvare | 8750197 | 2005-10-31 18:51:21 +0100 | [diff] [blame] | 11 | Datasheet: available on request from VIA |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
| Rudolf Marek | c243353 | 2006-09-03 22:35:21 +0200 | [diff] [blame] | 13 | * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8251 |
| 14 | Datasheet: available on request and under NDA from VIA |
| 15 | |
| Jean Delvare | ab6a6ed | 2007-02-13 22:09:02 +0100 | [diff] [blame] | 16 | * VIA Technologies, Inc. CX700 |
| 17 | Datasheet: available on request and under NDA from VIA |
| 18 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | Authors: |
| John Anthony Kazos Jr | be2a608 | 2007-05-09 08:50:42 +0200 | [diff] [blame] | 20 | Kyösti Mälkki <kmalkki@cc.hut.fi>, |
| Jean Delvare | f1183014 | 2005-09-22 21:58:41 +0200 | [diff] [blame] | 21 | Mark D. Studebaker <mdsxyz123@yahoo.com>, |
| 22 | Jean Delvare <khali@linux-fr.org> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| 24 | Module Parameters |
| 25 | ----------------- |
| 26 | |
| 27 | * force: int |
| 28 | Forcibly enable the SMBus controller. DANGEROUS! |
| 29 | * force_addr: int |
| 30 | Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS! |
| 31 | |
| 32 | Description |
| 33 | ----------- |
| 34 | |
| 35 | i2c-viapro is a true SMBus host driver for motherboards with one of the |
| Jean Delvare | aaf7f14 | 2005-09-22 22:09:07 +0200 | [diff] [blame] | 36 | supported VIA south bridges. |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
| 38 | Your lspci -n listing must show one of these : |
| 39 | |
| Jean Delvare | aaf7f14 | 2005-09-22 22:09:07 +0200 | [diff] [blame] | 40 | device 1106:3050 (VT82C596A function 3) |
| 41 | device 1106:3051 (VT82C596B function 3) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | device 1106:3057 (VT82C686 function 4) |
| 43 | device 1106:3074 (VT8233) |
| 44 | device 1106:3147 (VT8233A) |
| Jean Delvare | aaf7f14 | 2005-09-22 22:09:07 +0200 | [diff] [blame] | 45 | device 1106:8235 (VT8231 function 4) |
| 46 | device 1106:3177 (VT8235) |
| 47 | device 1106:3227 (VT8237R) |
| Rudolf Marek | c243353 | 2006-09-03 22:35:21 +0200 | [diff] [blame] | 48 | device 1106:3337 (VT8237A) |
| 49 | device 1106:3287 (VT8251) |
| Jean Delvare | ab6a6ed | 2007-02-13 22:09:02 +0100 | [diff] [blame] | 50 | device 1106:8324 (CX700) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
| 52 | If none of these show up, you should look in the BIOS for settings like |
| 53 | enable ACPI / SMBus or even USB. |
| Jean Delvare | f1183014 | 2005-09-22 21:58:41 +0200 | [diff] [blame] | 54 | |
| 55 | Except for the oldest chips (VT82C596A/B, VT82C686A and most probably |
| 56 | VT8231), this driver supports I2C block transactions. Such transactions |
| 57 | are mainly useful to read from and write to EEPROMs. |
| Jean Delvare | ab6a6ed | 2007-02-13 22:09:02 +0100 | [diff] [blame] | 58 | |
| 59 | The CX700 additionally appears to support SMBus PEC, although this driver |
| 60 | doesn't implement it yet. |