tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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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>

authored by

Corentin Chary and committed by
Len Brown 243ca3e4 3c4c1b69

+23
+23
Documentation/ABI/testing/sysfs-class-lcd
··· 1 + What: /sys/class/lcd/<lcd>/lcd_power 2 + Date: April 2005 3 + KernelVersion: 2.6.12 4 + Contact: Richard Purdie <rpurdie@rpsys.net> 5 + Description: 6 + Control LCD power, values are FB_BLANK_* from fb.h 7 + - FB_BLANK_UNBLANK (0) : power on. 8 + - FB_BLANK_POWERDOWN (4) : power off 9 + 10 + What: /sys/class/lcd/<lcd>/contrast 11 + Date: April 2005 12 + KernelVersion: 2.6.12 13 + Contact: Richard Purdie <rpurdie@rpsys.net> 14 + Description: 15 + Current contrast of this LCD device. Value is between 0 and 16 + /sys/class/lcd/<lcd>/max_contrast. 17 + 18 + What: /sys/class/lcd/<lcd>/max_contrast 19 + Date: April 2005 20 + KernelVersion: 2.6.12 21 + Contact: Richard Purdie <rpurdie@rpsys.net> 22 + Description: 23 + Maximum contrast for this LCD device.