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-rw-r--r--Documentation/power/video_extension.txt19
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: