1Kernel driver i2c-i810 2 3Supported adapters: 4 * Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH) 5 * Intel 82845G (GMCH) 6 7Authors: 8 Frodo Looijaard <frodol@dds.nl>, 9 Philip Edelbrock <phil@netroedge.com>, 10 Ky��sti M��lkki <kmalkki@cc.hut.fi>, 11 Ralph Metzler <rjkm@thp.uni-koeln.de>, 12 Mark D. Studebaker <mdsxyz123@yahoo.com> 13 14Main contact: Mark Studebaker <mdsxyz123@yahoo.com> 15 16Description 17----------- 18 19WARNING: If you have an '810' or '815' motherboard, your standard I2C 20temperature sensors are most likely on the 801's I2C bus. You want the 21i2c-i801 driver for those, not this driver. 22 23Now for the i2c-i810... 24 25The GMCH chip contains two I2C interfaces. 26 27The first interface is used for DDC (Data Display Channel) which is a 28serial channel through the VGA monitor connector to a DDC-compliant 29monitor. This interface is defined by the Video Electronics Standards 30Association (VESA). The standards are available for purchase at 31http://www.vesa.org . 32 33The second interface is a general-purpose I2C bus. It may be connected to a 34TV-out chip such as the BT869 or possibly to a digital flat-panel display. 35 36Features 37-------- 38 39Both busses use the i2c-algo-bit driver for 'bit banging' 40and support for specific transactions is provided by i2c-algo-bit. 41 42Issues 43------ 44 45If you enable bus testing in i2c-algo-bit (insmod i2c-algo-bit bit_test=1), 46the test may fail; if so, the i2c-i810 driver won't be inserted. However, 47we think this has been fixed. 48