Pr led class support

This will help you a bit to support LED Support Class in your device.

You can turn on/off the leds by changing the brightness or the trigger.

turn on:
echo 1 > /sys/class/leds/StatusLed/brightness
turn off:
echo 1 > /sys/class/leds/StatusLed/brightness

changing trigger default-on:
echo default-on > /sys/class/leds/StatusLed/trigger
changing trigger none:
echo none > /sys/class/leds/StatusLed/trigger