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| author | Jeff Garzik <jgarzik@pretzel.yyz.us> | 2005-06-26 23:38:58 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-26 23:38:58 -0400 |
| commit | 5696c1944a33b4434a9a1ebb6383b906afd43a10 (patch) | |
| tree | 16fbe6ba431bcf949ee8645510b0c2fd39b5810f /Documentation/power/video_extension.txt | |
| parent | 66b04a80eea60cabf9d89fd34deb3234a740052f (diff) | |
| parent | 020f46a39eb7b99a575b9f4d105fce2b142acdf1 (diff) | |
| download | talos-op-linux-5696c1944a33b4434a9a1ebb6383b906afd43a10.tar.gz talos-op-linux-5696c1944a33b4434a9a1ebb6383b906afd43a10.zip | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'Documentation/power/video_extension.txt')
| -rw-r--r-- | Documentation/power/video_extension.txt | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/Documentation/power/video_extension.txt b/Documentation/power/video_extension.txt index 8e33d7c82c49..b2f9b1598ac2 100644 --- a/Documentation/power/video_extension.txt +++ b/Documentation/power/video_extension.txt @@ -1,13 +1,16 @@ -This driver implement the ACPI Extensions For Display Adapters -for integrated graphics devices on motherboard, as specified in -ACPI 2.0 Specification, Appendix B, allowing to perform some basic -control like defining the video POST device, retrieving EDID information -or to setup a video output, etc. Note that this is an ref. implementation only. -It may or may not work for your integrated video device. +ACPI video extensions +~~~~~~~~~~~~~~~~~~~~~ + +This driver implement the ACPI Extensions For Display Adapters for +integrated graphics devices on motherboard, as specified in ACPI 2.0 +Specification, Appendix B, allowing to perform some basic control like +defining the video POST device, retrieving EDID information or to +setup a video output, etc. Note that this is an ref. implementation +only. It may or may not work for your integrated video device. Interfaces exposed to userland through /proc/acpi/video: -VGA/info : display the supported video bus device capability like ,Video ROM, CRT/LCD/TV. +VGA/info : display the supported video bus device capability like Video ROM, CRT/LCD/TV. VGA/ROM : Used to get a copy of the display devices' ROM data (up to 4k). VGA/POST_info : Used to determine what options are implemented. VGA/POST : Used to get/set POST device. @@ -15,7 +18,7 @@ VGA/DOS : Used to get/set ownership of output switching: Please refer ACPI spec B.4.1 _DOS VGA/CRT : CRT output VGA/LCD : LCD output -VGA/TV : TV output +VGA/TVO : TV output VGA/*/brightness : Used to get/set brightness of output device Notify event through /proc/acpi/event: |
