led: add getter functionsubmit/tizen_3.0/20170202.060211tizen_3.0

- The getter function provides current led state.
  If the led is on the off state, the output struct
  will contain 0 values.

Change-Id: Id83363dfbdd5302b7957c19a2b3b36efa952f5fb
Signed-off-by: taeyoung <ty317.kim@samsung.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/hw/led.h b/hw/led.h
index 69c6c10..1d54616 100644
--- a/hw/led.h
+++ b/hw/led.h
@@ -68,6 +68,11 @@ struct led_device {
 	 * Set led state
 	 */
 	int (*set_state)(struct led_state *state);
+
+	/**
+	 * Get led state
+	 */
+	int (*get_state)(struct led_state **state);
 };
 
 #endif