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| author | David Lechner <david@lechnology.com> | 2016-09-16 22:16:48 +0300 |
|---|---|---|
| committer | Jacek Anaszewski <j.anaszewski@samsung.com> | 2016-11-22 14:07:02 +0300 |
| commit | e381322b0190c1253d347de3f28b5c37756fb651 (patch) | |
| tree | 792a2bc1695cae581e152565e95127405424f5c6 /Documentation/leds/leds-lp5521.txt | |
| parent | 1001354ca34179f3db924eb66672442a173147dc (diff) | |
| download | linux-e381322b0190c1253d347de3f28b5c37756fb651.tar.xz | |
leds: Introduce userspace LED class driver
This driver creates a userspace leds driver similar to uinput.
New LEDs are created by opening /dev/uleds and writing a uleds_user_dev
struct. A new LED class device is registered with the name given in the
struct. Reading will return a single byte that is the current brightness.
The poll() syscall is also supported. It will be triggered whenever the
brightness changes. Closing the file handle to /dev/uleds will remove
the leds class device.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Diffstat (limited to 'Documentation/leds/leds-lp5521.txt')
0 files changed, 0 insertions, 0 deletions