mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-20 14:18:53 +07:00
ccf988b66d
Convert each file at I2C subsystem, renaming them to .rst and adding to the driver-api book. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
78 lines
2.3 KiB
ReStructuredText
78 lines
2.3 KiB
ReStructuredText
========================
|
|
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 <jdelvare@suse.de>
|
|
|
|
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.
|