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lm-sensors/doc/busses/i2c-i810
T
2002-01-05 17:39:11 +00:00

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Kernel driver `i2c-i810.o'
Status: Stable
Supported adapters:
* Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH)
Author: Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock
<phil@netroedge.com>,
Kyösti Mälkki <kmalkki@cc.hut.fi>,
and Mark D. Studebaker <mdsxyz123@yahoo.com>
Main contact: Mark Studebaker <mdsxyz123@yahoo.com>
Module Parameters
-----------------
(none)
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.o 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.
Stability
---------
Apparently stable.
Supported Devices
-----------------
See above.
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.