IGN / Ignition Power Control

Redefine the Power Button Behavior as Shutdown

Step 1. Install acpid

sudo apt-get install -y acpid

Step 2. Add a acpid hanlder for power button

# Create a new file
sudo gedit /etc/acpi/events/power

# Add the following lines inside /etc/acpi/events/power
event=button/power
action=sudo shutdown now

Step 3. Restart the acpid service

sudo service acpid restart

Step 4. Disable the default power button action

Step 5. Test the result

The system will shutdown after pressing the power button!

Optional Step if you are using older version BSP

Only need to apply the script if it not existing in the startsctip.

JP5.x

function initDO (){
  # $1 = GPIO_NAME # $2 = GPIO_PIN
  sudo echo $2 > /sys/class/gpio/export
  sudo echo out > /sys/class/gpio/$1/direction
  sudo echo 0 > /sys/class/gpio/$1/value

}

initDO PP.00 440 # GPO_IGN_OK

JP6.x

function setGPO_JP6(){ 
# $1=gpo_id $2=gpo_value
    PIN=$1
    sudo pkill -f -- "$(sudo gpiofind $PIN)"
    sudo gpioset -m signal $(sudo gpiofind $PIN)=$2 &
}

##initDO PP.00 440 # GPO_IGN_OK
setGPO_JP6 PP.00 0