From 48a1d032c954b9b06c3adbf35ef4735dd70ab757 Mon Sep 17 00:00:00 2001 From: "Kim, Milo" Date: Thu, 14 Mar 2013 04:29:24 -0700 Subject: leds: add camera LED triggers Some LED devices support flash/torch functionality through the LED subsystem. This patch enables direct LED trigger controls by the driver. Flash on/off and torch on/off can be done simply by other driver space. Two trigger APIs are added, ledtrig_flash_ctrl() and ledtrig_torch_ctrl(). Signed-off-by: Milo(Woogyom) Kim Signed-off-by: Bryan Wu --- include/linux/leds.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux/leds.h') diff --git a/include/linux/leds.h b/include/linux/leds.h index 2d8c0b4f2f7..0287ab29668 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -218,6 +218,14 @@ extern void ledtrig_ide_activity(void); static inline void ledtrig_ide_activity(void) {} #endif +#if defined(CONFIG_LEDS_TRIGGER_CAMERA) || defined(CONFIG_LEDS_TRIGGER_CAMERA_MODULE) +extern void ledtrig_flash_ctrl(bool on); +extern void ledtrig_torch_ctrl(bool on); +#else +static inline void ledtrig_flash_ctrl(bool on) {} +static inline void ledtrig_torch_ctrl(bool on) {} +#endif + /* * Generic LED platform data for describing LED names and default triggers. */ -- cgit v1.2.3