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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-03-15 16:54:45 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-03-15 16:54:45 -0700 |
| commit | 245f0db0de926601353776085e6f6a4c974c5615 (patch) | |
| tree | b493e9e726f4a898041f7861d0df328aa1a348a1 /Documentation/leds/leds-class.txt | |
| parent | Input: synaptics-rmi4 - using logical instead of bitwise AND (diff) | |
| parent | Linux 4.5 (diff) | |
| download | linux-dev-245f0db0de926601353776085e6f6a4c974c5615.tar.xz linux-dev-245f0db0de926601353776085e6f6a4c974c5615.zip | |
Merge tag 'v4.5' into next
Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
Diffstat (limited to 'Documentation/leds/leds-class.txt')
| -rw-r--r-- | Documentation/leds/leds-class.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/leds/leds-class.txt b/Documentation/leds/leds-class.txt index 62261c04060a..d406d98339b2 100644 --- a/Documentation/leds/leds-class.txt +++ b/Documentation/leds/leds-class.txt @@ -52,6 +52,19 @@ above leaves scope for further attributes should they be needed. If sections of the name don't apply, just leave that section blank. +Brightness setting API +====================== + +LED subsystem core exposes following API for setting brightness: + + - led_set_brightness : it is guaranteed not to sleep, passing LED_OFF stops + blinking, + - led_set_brightness_sync : for use cases when immediate effect is desired - + it can block the caller for the time required for accessing + device registers and can sleep, passing LED_OFF stops hardware + blinking, returns -EBUSY if software blink fallback is enabled. + + Hardware accelerated blink of LEDs ================================== |