wt/lm-sensors
1
0 Fork 0
mirror of https://github.com/lm-sensors/lm-sensors.git synced 2026-10-25 12:14:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

(mds) add Banshee and DDC information.

Browse Source 
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@699 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Mark D. Studebaker committed 2000-01-15 19:10:07 +00:00
1 parent b2cde3487e
commit bbdcd94a3d
1 file changed
+18 -9
Download Patch File Download Diff File Expand all files Collapse all files
doc/busses/i2c-voodoo3
+18 -9
View File
@@ -4,11 +4,11 @@ Status: 'Beta' and still under development and testing
Supported adapters:
* 3dfx Voodoo3 based cards
* Voodoo Banshee based cards?
* Voodoo Banshee based cards
Author: Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock
<phil@netroedge.com>, and Ralph Metzler
<rjkm@thp.uni-koeln.de>
<phil@netroedge.com>, Ralph Metzler <rjkm@thp.uni-koeln.de>,
and Mark D. Studebaker <mdsxyz123@yahoo.com>
Main contact: Philip Edelbrock <phil@netroedge.com>
@@ -24,8 +24,17 @@ Module Parameters
Description
-----------
The 3dfx Voodoo3 chip contains an I2C interface/driver (aka a I2C 'master'
or 'host'). The intent by 3dfx was to allow manufacturers to add extra
The 3dfx Voodoo3 chip contains two I2C interfaces (aka a I2C 'master'
or 'host').
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.
The intent by 3dfx was to allow manufacturers to add extra
chips to the video card such as a TV-out chip such as the BT869 or possibly
even I2C based temperature sensors like the ADM1021 or LM75.
@@ -40,16 +49,16 @@ Stability
Seems to be stable on the test machine, but needs more testing on other
machines.
Simultaneous accesses of the DDC and I2C busses may cause errors.
Supported Devices
-----------------
Specifically, this driver was written and tested on the '3dfx Voodoo3 AGP
3000' which has a tv-out feature (s-video or composite). According to the
docs and discussions, this code should work for any Voodoo3 based cards as
well as Voodoo Banshee based cards. Voodoo Banshee cards, however, are not
probed or detected until I can find a test user to help out in the testing,
so please contact me (phil@netroedge.com) if you have a Banshee and want
to help.
well as Voodoo Banshee based cards. The DDC interface has been tested
on a Voodoo Banshee card.
Features
--------