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| author | David S. Miller <davem@davemloft.net> | 2016-01-13 06:21:27 +0100 |
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| committer | David S. Miller <davem@davemloft.net> | 2016-01-13 06:21:27 +0100 |
| commit | ddb5388ffd0ad75d07e7b78181a0b579824ba6f0 (patch) | |
| tree | be1e2bd103c69d7bbace3fffd97bc3d714bbc3d7 /Documentation/leds/leds-class.txt | |
| parent | net: netlink: Fix multicast group storage allocation for families with more t... (diff) | |
| parent | Merge tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-ddb5388ffd0ad75d07e7b78181a0b579824ba6f0.tar.xz linux-ddb5388ffd0ad75d07e7b78181a0b579824ba6f0.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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 ================================== |