mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-21 10:01:00 +00:00
8750197f0e
The big i2c-viapro SMBus driver update which went into 2.6.14-git1 introduced a few minor issues. Nothing critical, but I would like a few adjustments to be merged in to fix the following problems: * VIA should not be spelled Via. * Frodo Looijaard and Philip Edelbrock did not write the i2c-viapro driver. * When debugging is disabled, half of messages would be logged. * Drop an unneeded masking. * Some port reads can be avoided now that the transaction size is passed as a parameter to vt596_transaction(). * SMBus Receive Byte transactions are used for probing too (for EEPROMs), so hide errors on these too. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
48 lines
1.4 KiB
Text
48 lines
1.4 KiB
Text
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, VT8237R
|
|
Datasheet: available on request from VIA
|
|
|
|
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)
|
|
|
|
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.
|