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authorKim, Milo <Milo.Kim@ti.com>2013-03-14 04:29:24 -0700
committerBryan Wu <cooloney@gmail.com>2013-04-01 11:04:50 -0700
commit48a1d032c954b9b06c3adbf35ef4735dd70ab757 (patch)
tree1565df19ce741f9332e0a53cc9ef4881a389c002 /include
parent39f7e08af3fd9ca1cb94a8270354afb2ea5cfcd3 (diff)
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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 <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/leds.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 2d8c0b4f2f76..0287ab296689 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.
*/