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, VT8235, VT8237 Datasheet: available on request from Via Authors: Frodo Looijaard , Philip Edelbrock , Kyösti Mälkki , Mark D. Studebaker 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 southbridges. Your lspci -n listing must show one of these : device 1106:3050 (VT82C596 function 3) device 1106:3051 (VT82C596 function 3) device 1106:3057 (VT82C686 function 4) device 1106:3074 (VT8233) device 1106:3147 (VT8233A) device 1106:8235 (VT8231) devide 1106:3177 (VT8235) devide 1106:3227 (VT8237) If none of these show up, you should look in the BIOS for settings like enable ACPI / SMBus or even USB.