1 Kernel driver i2c-viapro
4 * VIA Technologies, Inc. VT82C596A/B
5 Datasheet: Sometimes available at the VIA website
7 * VIA Technologies, Inc. VT82C686A/B
8 Datasheet: Sometimes available at the VIA website
10 * VIA Technologies, Inc. VT8231, VT8233, VT8233A
11 Datasheet: available on request from VIA
13 * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8251
14 Datasheet: available on request and under NDA from VIA
17 Kyösti Mälkki <kmalkki@cc.hut.fi>,
18 Mark D. Studebaker <mdsxyz123@yahoo.com>,
19 Jean Delvare <khali@linux-fr.org>
25 Forcibly enable the SMBus controller. DANGEROUS!
27 Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS!
32 i2c-viapro is a true SMBus host driver for motherboards with one of the
33 supported VIA south bridges.
35 Your lspci -n listing must show one of these :
37 device 1106:3050 (VT82C596A function 3)
38 device 1106:3051 (VT82C596B function 3)
39 device 1106:3057 (VT82C686 function 4)
40 device 1106:3074 (VT8233)
41 device 1106:3147 (VT8233A)
42 device 1106:8235 (VT8231 function 4)
43 device 1106:3177 (VT8235)
44 device 1106:3227 (VT8237R)
45 device 1106:3337 (VT8237A)
46 device 1106:3287 (VT8251)
48 If none of these show up, you should look in the BIOS for settings like
49 enable ACPI / SMBus or even USB.
51 Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
52 VT8231), this driver supports I2C block transactions. Such transactions
53 are mainly useful to read from and write to EEPROMs.