From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- Documentation/i2c/busses/i2c-i810 | 46 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/i2c/busses/i2c-i810 (limited to 'Documentation/i2c/busses/i2c-i810') diff --git a/Documentation/i2c/busses/i2c-i810 b/Documentation/i2c/busses/i2c-i810 new file mode 100644 index 00000000000..0544eb33288 --- /dev/null +++ b/Documentation/i2c/busses/i2c-i810 @@ -0,0 +1,46 @@ +Kernel driver i2c-i810 + +Supported adapters: + * Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH) + +Authors: + Frodo Looijaard , + Philip Edelbrock , + Kyösti Mälkki , + Ralph Metzler , + Mark D. Studebaker + +Main contact: Mark Studebaker + +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. -- cgit v1.2.3