| Kernel driver i2c-viapro | |
| Supported adapters: | |
| * VIA Technologies, Inc. VT82C596A/B | |
| Datasheet: Sometimes available at the VIA website | |
| * VIA Technologies, Inc. VT82C686A/B | |
| Datasheet: Sometimes available at the VIA website | |
| * VIA Technologies, Inc. VT8231, VT8233, VT8233A | |
| Datasheet: available on request from VIA | |
| * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8237S, VT8251 | |
| Datasheet: available on request and under NDA from VIA | |
| * VIA Technologies, Inc. CX700 | |
| Datasheet: available on request and under NDA from VIA | |
| * VIA Technologies, Inc. VX800/VX820 | |
| Datasheet: available on http://linux.via.com.tw | |
| * VIA Technologies, Inc. VX855/VX875 | |
| Datasheet: available on http://linux.via.com.tw | |
| * VIA Technologies, Inc. VX900 | |
| Datasheet: available on http://linux.via.com.tw | |
| Authors: | |
| Kyösti Mälkki <kmalkki@cc.hut.fi>, | |
| Mark D. Studebaker <mdsxyz123@yahoo.com>, | |
| Jean Delvare <khali@linux-fr.org> | |
| Module Parameters | |
| ----------------- | |
| * force: int | |
| Forcibly enable the SMBus controller. DANGEROUS! | |
| * force_addr: int | |
| Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS! | |
| Description | |
| ----------- | |
| i2c-viapro is a true SMBus host driver for motherboards with one of the | |
| supported VIA south bridges. | |
| Your lspci -n listing must show one of these : | |
| device 1106:3050 (VT82C596A function 3) | |
| device 1106:3051 (VT82C596B function 3) | |
| device 1106:3057 (VT82C686 function 4) | |
| device 1106:3074 (VT8233) | |
| device 1106:3147 (VT8233A) | |
| device 1106:8235 (VT8231 function 4) | |
| device 1106:3177 (VT8235) | |
| device 1106:3227 (VT8237R) | |
| device 1106:3337 (VT8237A) | |
| device 1106:3372 (VT8237S) | |
| device 1106:3287 (VT8251) | |
| device 1106:8324 (CX700) | |
| device 1106:8353 (VX800/VX820) | |
| device 1106:8409 (VX855/VX875) | |
| device 1106:8410 (VX900) | |
| If none of these show up, you should look in the BIOS for settings like | |
| enable ACPI / SMBus or even USB. | |
| Except for the oldest chips (VT82C596A/B, VT82C686A and most probably | |
| VT8231), this driver supports I2C block transactions. Such transactions | |
| are mainly useful to read from and write to EEPROMs. | |
| The CX700/VX800/VX820 additionally appears to support SMBus PEC, although | |
| this driver doesn't implement it yet. |