diff options
| author | Corentin Chary <corentincj@iksaif.net> | 2009-08-28 16:56:44 +0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-08-28 23:21:12 +0400 |
| commit | 243ca3e401bc62e704785d215931f1a51fd53bd7 (patch) | |
| tree | 513e97e3fb2dd05185606538ceb0f46a2e6f4b11 | |
| parent | 3c4c1b69a2d76ac9a1c716233fde956dba757d76 (diff) | |
| download | linux-243ca3e401bc62e704785d215931f1a51fd53bd7.tar.xz | |
video/lcd: document sysfs interface
Date and KernelVersion may be wrong because the lcd
interface was introduced before git initial import.
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-lcd | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-lcd b/Documentation/ABI/testing/sysfs-class-lcd new file mode 100644 index 000000000000..35906bf7aa70 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-lcd @@ -0,0 +1,23 @@ +What: /sys/class/lcd/<lcd>/lcd_power +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Control LCD power, values are FB_BLANK_* from fb.h + - FB_BLANK_UNBLANK (0) : power on. + - FB_BLANK_POWERDOWN (4) : power off + +What: /sys/class/lcd/<lcd>/contrast +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Current contrast of this LCD device. Value is between 0 and + /sys/class/lcd/<lcd>/max_contrast. + +What: /sys/class/lcd/<lcd>/max_contrast +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie <rpurdie@rpsys.net> +Description: + Maximum contrast for this LCD device. |