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Groups > linux.kernel > #1241255
| From | Jacek Anaszewski <j.anaszewski@samsung.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 06/10] Documentation: leds: Add description of brightness setting API |
| Date | 2015-10-07 11:20 +0200 |
| Message-ID | <qgT3b-st-11@gated-at.bofh.it> (permalink) |
| References | <qgT3b-st-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This patch adds description of the LED subsystem API for setting an LED brightness. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> --- Documentation/leds/leds-class.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/leds/leds-class.txt b/Documentation/leds/leds-class.txt index 62261c0..d406d98 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 ================================== -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v3 06/10] Documentation: leds: Add description of brightness setting API Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-10-07 11:20 +0200 Re: [PATCH v3 06/10] Documentation: leds: Add description of brightness setting API Sakari Ailus <sakari.ailus@iki.fi> - 2015-10-16 17:40 +0200
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