/Documentation/ABI/testing/sysfs-class-led

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  1. What:		/sys/class/leds/<led>/brightness
    2. 

  2. Date:		March 2006
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  3. KernelVersion:	2.6.17
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  4. Contact:	Richard Purdie <rpurdie@rpsys.net>
    5. 

  5. Description:
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  6. 		Set the brightness of the LED. Most LEDs don't
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  7. 		have hardware brightness support so will just be turned on for
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  8. 		non-zero brightness settings. The value is between 0 and
    9. 

  9. 		/sys/class/leds/<led>/max_brightness.
    10. 

  10. 

  11. What:		/sys/class/leds/<led>/max_brightness
    12. 

  12. Date:		March 2006
    13. 

  13. KernelVersion:	2.6.17
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  14. Contact:	Richard Purdie <rpurdie@rpsys.net>
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  15. Description:
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  16. 		Maximum brightness level for this led, default is 255 (LED_FULL).
    17. 

  17. 

  18. What:		/sys/class/leds/<led>/trigger
    19. 

  19. Date:		March 2006
    20. 

  20. KernelVersion:	2.6.17
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  21. Contact:	Richard Purdie <rpurdie@rpsys.net>
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  22. Description:
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  23. 		Set the trigger for this LED. A trigger is a kernel based source
    24. 

  24. 		of led events.
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  25. 		You can change triggers in a similar manner to the way an IO
    26. 

  26. 		scheduler is chosen. Trigger specific parameters can appear in
    27. 

  27. 		/sys/class/leds/<led> once a given trigger is selected.
    28.