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https://github.com/lm-sensors/lm-sensors.git
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Mark D. Studebaker
42bbb8bb93
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@862 7894878c-1315-0410-8ee3-d5d059ff63e0
62 lines
1.8 KiB
Plaintext
62 lines
1.8 KiB
Plaintext
Kernel driver `i2c-i810.o'
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Status: Stable
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Supported adapters:
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* Intel 82810, 82810-DC100, and 82815 (GMCH)
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Author: Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock
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<phil@netroedge.com>,
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Kyösti Mälkki <kmalkki@cc.hut.fi>,
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and Mark D. Studebaker <mdsxyz123@yahoo.com>
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Main contact: Mark Studebaker <mdsxyz123@yahoo.com>
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Module Parameters
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-----------------
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(none)
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Description
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-----------
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WARNING: If you have an '810' or '815' motherboard, your standard I2C
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temperature sensors are most likely on the 801's I2C bus.
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You want the i2c-i801.o driver for those, not this driver.
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Now for the i2c-i810...
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The GMCH chip contains two I2C interfaces.
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The first interface is used for DDC (Data Display Channel)
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which is a serial channel through the VGA monitor connector
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to a DDC-compliant monitor. This interface is defined by the
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Video Electronics Standards Association (VESA). The standards
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are available for purchase at http://www.vesa.org .
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The second interface is a general-purpose I2C bus.
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It may be connected to a TV-out chip such as the BT869 or possibly
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to a digital flat-panel display.
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Stability
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---------
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Apparently stable.
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Supported Devices
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-----------------
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Specifically, this driver was written and tested on the '3dfx Voodoo3 AGP
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3000' which has a tv-out feature (s-video or composite). According to the
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docs and discussions, this code should work for any Voodoo3 based cards as
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well as Voodoo Banshee based cards. The DDC interface has been tested
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on a Voodoo Banshee card.
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Features
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--------
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Both busses use the i2c-algo-bit driver for 'bit banging' and support
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for specific transactions is provided by i2c-algo-bit.
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Issues
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------
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If you enable bus testing in i2c-algo-bit (insmod i2c-algo-bit bit_test=1),
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the test may fail and the i2c-i810 driver won't be inserted.
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