manual/hikey/hikey-user-led
Description
Test if user LED working on Hikey board.
Maintainer
- amit.khare@linaro.org
OS
- android
- debian
Scope
- functional
Devices
- hi6220-hikey
Steps to reproduce
- Boot the board successfuly.
- There are four user LEDs on board user_led1, user_led2, user_led3 and user_led4.
- To turn on specific LED, run "echo 1 > /sys/class/leds/
/brightness" - To turn off specific LED, run "echo 0 > /sys/class/leds/
/brightness" - Run "cat /sys/class/leds/
/trigger" to show all the triggers available for a particular LED. - To assign a trigger to any LED, run "echo trigger_name > /sys/class/leds/
/trigger" - {'example': 'to assign "heartbeat" trigger to user_led3, run "echo heartbeat > /sys/class/leds/user_led3/trigger"'}
- To remove trigger for any LED, run "echo none > /sys/class/leds/
/trigger"