From e381322b0190c1253d347de3f28b5c37756fb651 Mon Sep 17 00:00:00 2001 From: David Lechner Date: Fri, 16 Sep 2016 14:16:48 -0500 Subject: 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 Signed-off-by: Jacek Anaszewski --- drivers/leds/Makefile | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/leds/Makefile') diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 3965070190f5..d5331ff5b563 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -75,5 +75,8 @@ obj-$(CONFIG_LEDS_MLXCPLD) += leds-mlxcpld.o # LED SPI Drivers obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o +# LED Userspace Drivers +obj-$(CONFIG_LEDS_USER) += uleds.o + # LED Triggers obj-$(CONFIG_LEDS_TRIGGERS) += trigger/ -- cgit v1.2.3