be2a608bd0
Convert files within the Documentation directory to UTF-8. Adrian Bunk: small additional fixes Signed-off-by: John Anthony Kazos Jr. <jakj@j-a-k-j.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
Kernel driver i2c-i810
|
|
|
|
Supported adapters:
|
|
* Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH)
|
|
* Intel 82845G (GMCH)
|
|
|
|
Authors:
|
|
Frodo Looijaard <frodol@dds.nl>,
|
|
Philip Edelbrock <phil@netroedge.com>,
|
|
Kyösti Mälkki <kmalkki@cc.hut.fi>,
|
|
Ralph Metzler <rjkm@thp.uni-koeln.de>,
|
|
Mark D. Studebaker <mdsxyz123@yahoo.com>
|
|
|
|
Main contact: Mark Studebaker <mdsxyz123@yahoo.com>
|
|
|
|
Description
|
|
-----------
|
|
|
|
WARNING: If you have an '810' or '815' motherboard, your standard I2C
|
|
temperature sensors are most likely on the 801's I2C bus. You want the
|
|
i2c-i801 driver for those, not this driver.
|
|
|
|
Now for the i2c-i810...
|
|
|
|
The GMCH chip contains two I2C interfaces.
|
|
|
|
The first interface is used for DDC (Data Display Channel) which is a
|
|
serial channel through the VGA monitor connector to a DDC-compliant
|
|
monitor. This interface is defined by the Video Electronics Standards
|
|
Association (VESA). The standards are available for purchase at
|
|
http://www.vesa.org .
|
|
|
|
The second interface is a general-purpose I2C bus. It may be connected to a
|
|
TV-out chip such as the BT869 or possibly to a digital flat-panel display.
|
|
|
|
Features
|
|
--------
|
|
|
|
Both busses use the i2c-algo-bit driver for 'bit banging'
|
|
and support for specific transactions is provided by i2c-algo-bit.
|
|
|
|
Issues
|
|
------
|
|
|
|
If you enable bus testing in i2c-algo-bit (insmod i2c-algo-bit bit_test=1),
|
|
the test may fail; if so, the i2c-i810 driver won't be inserted. However,
|
|
we think this has been fixed.
|