Commit 70e66e4df19167653aba95b4dacbcfd3254a4019
Committed by
Rafael J. Wysocki
Rafael J. Wysocki
1 parent
3afe6dab86
Exists in
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ACPI / video: move video_extension.txt to Documentation/acpi
ACPI video driver is written according to ACPI spec, appendix B: Video Extensions. So it better be put under the acpi directory instead of the power directory. This patch moves the file there without any other change. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Showing 2 changed files with 37 additions and 37 deletions Side-by-side Diff
Documentation/acpi/video_extension.txt
| 1 | +ACPI video extensions | |
| 2 | +~~~~~~~~~~~~~~~~~~~~~ | |
| 3 | + | |
| 4 | +This driver implement the ACPI Extensions For Display Adapters for | |
| 5 | +integrated graphics devices on motherboard, as specified in ACPI 2.0 | |
| 6 | +Specification, Appendix B, allowing to perform some basic control like | |
| 7 | +defining the video POST device, retrieving EDID information or to | |
| 8 | +setup a video output, etc. Note that this is an ref. implementation | |
| 9 | +only. It may or may not work for your integrated video device. | |
| 10 | + | |
| 11 | +Interfaces exposed to userland through /proc/acpi/video: | |
| 12 | + | |
| 13 | +VGA/info : display the supported video bus device capability like Video ROM, CRT/LCD/TV. | |
| 14 | +VGA/ROM : Used to get a copy of the display devices' ROM data (up to 4k). | |
| 15 | +VGA/POST_info : Used to determine what options are implemented. | |
| 16 | +VGA/POST : Used to get/set POST device. | |
| 17 | +VGA/DOS : Used to get/set ownership of output switching: | |
| 18 | + Please refer ACPI spec B.4.1 _DOS | |
| 19 | +VGA/CRT : CRT output | |
| 20 | +VGA/LCD : LCD output | |
| 21 | +VGA/TVO : TV output | |
| 22 | +VGA/*/brightness : Used to get/set brightness of output device | |
| 23 | + | |
| 24 | +Notify event through /proc/acpi/event: | |
| 25 | + | |
| 26 | +#define ACPI_VIDEO_NOTIFY_SWITCH 0x80 | |
| 27 | +#define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
| 28 | +#define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
| 29 | +#define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
| 30 | +#define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
| 31 | + | |
| 32 | +#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x82 | |
| 33 | +#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x83 | |
| 34 | +#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x84 | |
| 35 | +#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x85 | |
| 36 | +#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x86 |
Documentation/power/video_extension.txt
| 1 | -ACPI video extensions | |
| 2 | -~~~~~~~~~~~~~~~~~~~~~ | |
| 3 | - | |
| 4 | -This driver implement the ACPI Extensions For Display Adapters for | |
| 5 | -integrated graphics devices on motherboard, as specified in ACPI 2.0 | |
| 6 | -Specification, Appendix B, allowing to perform some basic control like | |
| 7 | -defining the video POST device, retrieving EDID information or to | |
| 8 | -setup a video output, etc. Note that this is an ref. implementation | |
| 9 | -only. It may or may not work for your integrated video device. | |
| 10 | - | |
| 11 | -Interfaces exposed to userland through /proc/acpi/video: | |
| 12 | - | |
| 13 | -VGA/info : display the supported video bus device capability like Video ROM, CRT/LCD/TV. | |
| 14 | -VGA/ROM : Used to get a copy of the display devices' ROM data (up to 4k). | |
| 15 | -VGA/POST_info : Used to determine what options are implemented. | |
| 16 | -VGA/POST : Used to get/set POST device. | |
| 17 | -VGA/DOS : Used to get/set ownership of output switching: | |
| 18 | - Please refer ACPI spec B.4.1 _DOS | |
| 19 | -VGA/CRT : CRT output | |
| 20 | -VGA/LCD : LCD output | |
| 21 | -VGA/TVO : TV output | |
| 22 | -VGA/*/brightness : Used to get/set brightness of output device | |
| 23 | - | |
| 24 | -Notify event through /proc/acpi/event: | |
| 25 | - | |
| 26 | -#define ACPI_VIDEO_NOTIFY_SWITCH 0x80 | |
| 27 | -#define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
| 28 | -#define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
| 29 | -#define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
| 30 | -#define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
| 31 | - | |
| 32 | -#define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x82 | |
| 33 | -#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x83 | |
| 34 | -#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x84 | |
| 35 | -#define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x85 | |
| 36 | -#define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x86 |