on boot chown system system /sys/class/backlight/panel0-backlight/brightness chown system system /sys/class/backlight/panel0-backlight/max_brightness chown system system /sys/class/leds/green/brightness chown system system /sys/class/leds/green/breath chmod 0644 /sys/class/backlight/panel0-backlight/brightness chmod 0644 /sys/class/backlight/panel0-backlight/max_brightness chmod 0644 /sys/class/leds/green/brightness chmod 0644 /sys/class/leds/green/breath service vendor.light-hal-2-0 /vendor/bin/hw/android.hardware.light@2.0-service.davinci interface android.hardware.light@2.0::ILight default class hal user system group system # shutting off lights while powering-off shutdown critical