1 ======================== 1 ========================
2 Kernel driver i2c-viapro 2 Kernel driver i2c-viapro
3 ======================== 3 ========================
4 4
5 Supported adapters: 5 Supported adapters:
6 * VIA Technologies, Inc. VT82C596A/B 6 * VIA Technologies, Inc. VT82C596A/B
7 Datasheet: Sometimes available at the VIA 7 Datasheet: Sometimes available at the VIA website
8 8
9 * VIA Technologies, Inc. VT82C686A/B 9 * VIA Technologies, Inc. VT82C686A/B
10 Datasheet: Sometimes available at the VIA 10 Datasheet: Sometimes available at the VIA website
11 11
12 * VIA Technologies, Inc. VT8231, VT8233, VT8 12 * VIA Technologies, Inc. VT8231, VT8233, VT8233A
13 Datasheet: available on request from VIA 13 Datasheet: available on request from VIA
14 14
15 * VIA Technologies, Inc. VT8235, VT8237R, VT 15 * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8237S, VT8251
16 Datasheet: available on request and under 16 Datasheet: available on request and under NDA from VIA
17 17
18 * VIA Technologies, Inc. CX700 18 * VIA Technologies, Inc. CX700
19 Datasheet: available on request and under 19 Datasheet: available on request and under NDA from VIA
20 20
21 * VIA Technologies, Inc. VX800/VX820 21 * VIA Technologies, Inc. VX800/VX820
22 Datasheet: available on http://linux.via.c 22 Datasheet: available on http://linux.via.com.tw
23 23
24 * VIA Technologies, Inc. VX855/VX875 24 * VIA Technologies, Inc. VX855/VX875
25 Datasheet: available on http://linux.via.c 25 Datasheet: available on http://linux.via.com.tw
26 26
27 * VIA Technologies, Inc. VX900 27 * VIA Technologies, Inc. VX900
28 Datasheet: available on http://linux.via.c 28 Datasheet: available on http://linux.via.com.tw
29 29
30 Authors: 30 Authors:
31 - Kyösti Mälkki <kmalkki@cc.hut.fi>, 31 - Kyösti Mälkki <kmalkki@cc.hut.fi>,
32 - Mark D. Studebaker <mdsxyz123@yahoo.c 32 - Mark D. Studebaker <mdsxyz123@yahoo.com>,
33 - Jean Delvare <jdelvare@suse.de> 33 - Jean Delvare <jdelvare@suse.de>
34 34
35 Module Parameters 35 Module Parameters
36 ----------------- 36 -----------------
37 37
38 * force: int 38 * force: int
39 Forcibly enable the SMBus controller. DANGER 39 Forcibly enable the SMBus controller. DANGEROUS!
40 * force_addr: int 40 * force_addr: int
41 Forcibly enable the SMBus at the given addre 41 Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS!
42 42
43 Description 43 Description
44 ----------- 44 -----------
45 45
46 i2c-viapro is a true SMBus host driver for mot 46 i2c-viapro is a true SMBus host driver for motherboards with one of the
47 supported VIA south bridges. 47 supported VIA south bridges.
48 48
49 Your ``lspci -n`` listing must show one of the 49 Your ``lspci -n`` listing must show one of these :
50 50
51 ================ ====================== 51 ================ ======================
52 device 1106:3050 (VT82C596A function 3) 52 device 1106:3050 (VT82C596A function 3)
53 device 1106:3051 (VT82C596B function 3) 53 device 1106:3051 (VT82C596B function 3)
54 device 1106:3057 (VT82C686 function 4) 54 device 1106:3057 (VT82C686 function 4)
55 device 1106:3074 (VT8233) 55 device 1106:3074 (VT8233)
56 device 1106:3147 (VT8233A) 56 device 1106:3147 (VT8233A)
57 device 1106:8235 (VT8231 function 4) 57 device 1106:8235 (VT8231 function 4)
58 device 1106:3177 (VT8235) 58 device 1106:3177 (VT8235)
59 device 1106:3227 (VT8237R) 59 device 1106:3227 (VT8237R)
60 device 1106:3337 (VT8237A) 60 device 1106:3337 (VT8237A)
61 device 1106:3372 (VT8237S) 61 device 1106:3372 (VT8237S)
62 device 1106:3287 (VT8251) 62 device 1106:3287 (VT8251)
63 device 1106:8324 (CX700) 63 device 1106:8324 (CX700)
64 device 1106:8353 (VX800/VX820) 64 device 1106:8353 (VX800/VX820)
65 device 1106:8409 (VX855/VX875) 65 device 1106:8409 (VX855/VX875)
66 device 1106:8410 (VX900) 66 device 1106:8410 (VX900)
67 ================ ====================== 67 ================ ======================
68 68
69 If none of these show up, you should look in t 69 If none of these show up, you should look in the BIOS for settings like
70 enable ACPI / SMBus or even USB. 70 enable ACPI / SMBus or even USB.
71 71
72 Except for the oldest chips (VT82C596A/B, VT82 72 Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
73 VT8231), this driver supports I2C block transa 73 VT8231), this driver supports I2C block transactions. Such transactions
74 are mainly useful to read from and write to EE 74 are mainly useful to read from and write to EEPROMs.
75 75
76 The CX700/VX800/VX820 additionally appears to 76 The CX700/VX800/VX820 additionally appears to support SMBus PEC, although
77 this driver doesn't implement it yet. 77 this driver doesn't implement it yet.
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