Lines Matching refs:LED

1 LED Transient Trigger
7 to be off. The delay_on value specifies the time period an LED should stay
8 in on state, followed by a delay_off value that specifies how long the LED
32 class device, the LED state does not change.
35 trigger will be called, and LED state is changed to LED_OFF.
37 Driver suspend changes the LED state to LED_OFF and resume doesn't change
39 suspend and resume actions and the currently enabled trigger. LED state
42 being able to actually change the LED state. Once driver is resumed, triggers
45 LED state changes are controlled using brightness which is a common led
52 registration, the LED state does not change, unless there is another trigger
53 active, in which case LED state changes to LED_OFF.
55 During trigger unregistration, LED state gets changed to LED_OFF.
57 Transient trigger activation routine doesn't change the LED state. It
60 up and removes the properties it created. It will restore the LED state to
62 state, the LED state changes to LED_OFF.
106 		Please note that current LED state is not checked prior to
109 		default states it defines for the LED in its brightness_set()
111 		interfaces to control the LED state.
148  - Use of LED by user space app as activity indicator.
149  - Use of LED by user space app as a kind of watchdog indicator -- as
150        long as the app is alive, it can keep the LED illuminated, if it dies
151        the LED will be extinguished automatically.