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1f70cb4045
Documentation of sysfs interface should be in ABI in the first place. This moves relevant part of documentation and mentions where to look for it. Fix trivial typos whilst we are at it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
39 lines
1.4 KiB
Plaintext
39 lines
1.4 KiB
Plaintext
What: /sys/class/leds/<led>/brightness
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: Richard Purdie <rpurdie@rpsys.net>
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Description:
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Set the brightness of the LED. Most LEDs don't
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have hardware brightness support so will just be turned on for
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non-zero brightness settings. The value is between 0 and
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/sys/class/leds/<led>/max_brightness.
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What: /sys/class/leds/<led>/max_brightness
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: Richard Purdie <rpurdie@rpsys.net>
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Description:
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Maximum brightness level for this led, default is 255 (LED_FULL).
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What: /sys/class/leds/<led>/trigger
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: Richard Purdie <rpurdie@rpsys.net>
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Description:
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Set the trigger for this LED. A trigger is a kernel based source
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of led events.
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You can change triggers in a similar manner to the way an IO
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scheduler is chosen. Trigger specific parameters can appear in
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/sys/class/leds/<led> once a given trigger is selected. For
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their documentation see sysfs-class-led-trigger-*.
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What: /sys/class/leds/<led>/inverted
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Date: January 2011
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KernelVersion: 2.6.38
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Contact: Richard Purdie <rpurdie@rpsys.net>
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Description:
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Invert the LED on/off state. This parameter is specific to
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gpio and backlight triggers. In case of the backlight trigger,
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it is useful when driving a LED which is intended to indicate
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a device in a standby like state.
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