From 7aea8389a77abf9fde254aca2434a605c7704f58 Mon Sep 17 00:00:00 2001 From: Jacek Anaszewski Date: Fri, 9 Jan 2015 07:22:51 -0800 Subject: leds: Add LED Flash class extension to the LED subsystem Some LED devices support two operation modes - torch and flash. This patch provides support for flash LED devices in the LED subsystem by introducing new sysfs attributes and kernel internal interface. The attributes being introduced are: flash_brightness, flash_strobe, flash_timeout, max_flash_timeout, max_flash_brightness, flash_fault, flash_sync_strobe and available_sync_leds. All the flash related features are placed in a separate module. The modifications aim to be compatible with V4L2 framework requirements related to the flash devices management. The design assumes that V4L2 sub-device can take of the LED class device control and communicate with it through the kernel internal interface. When V4L2 Flash sub-device file is opened, the LED class device sysfs interface is made unavailable. Signed-off-by: Jacek Anaszewski Acked-by: Kyungmin Park Cc: Richard Purdie Acked-by: Pavel Machek Signed-off-by: Bryan Wu --- drivers/leds/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/leds/Makefile') diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 1c65a19..cbba921 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -2,6 +2,7 @@ # LED Core obj-$(CONFIG_NEW_LEDS) += led-core.o obj-$(CONFIG_LEDS_CLASS) += led-class.o +obj-$(CONFIG_LEDS_CLASS_FLASH) += led-class-flash.o obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o # LED Platform Drivers -- cgit v1.1