====== TQMa62xx - YOCTO Linux BSP documentation ======

<nav type="tabs" justified="true">
  * [[.:..:overview|Overview]]
  * [[.:..:quickstart_yocto|Quickstart BSP]]
  * [[.:..:deployment_yocto|Deployment]]
  * [[.:user-led|How-To]]
  * [[.:..:known-issues|Known Issues]]
</nav>

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<panel type="default" title="User LED">
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{{ :en:arm:tqma62xx:mba62xx_user_leds.jpg?300&nolink |}}

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The MBa62xx has two user controllable LEDs, the behavior of these LEDs can be selected by several triggers. \\
The user LED's are located in /sys/devices/platform/gpio-leds/leds/.\\
To change the behaviour a specific LED, the value in the file trigger must be overwritten.
<div>
++++The following values are valid:|

  * none 
  * bluetooth-power 
  * kbd-scrolllock 
  * kbd-numlock 
  * kbd-capslock 
  * kbd-kanalock 
  * kbd-shiftlock 
  * kbd-altgrlock   
  * kbd-altlock
  * kbd-shiftllock
  * kbd-shiftrlock
  * kbd-ctrllock
  * kbd-ctrlllock
  * kbd-ctrlrlock
  * mmc0
  * disk-activity
  * disk-read
  * disk-write
  * ide-disk
  * heartbeat
  * cpu
  * cpu0
  * cpu1
  * cpu2
  * cpu3
  * default-on
  * panic
  * mmc1

++++
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For example set the trigger of led1 to heartbeat 

<code>
echo heartbeat > /sys/class/leds/led1/trigger
</code>

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