Garden Power Button Helper

A workaround for the broken power button on garden devices.

Compile and Install

1. You must have gcc installed e.g.sudo apt install gcc
2. compile (without debug) : gcc power_button_helper.c -o power_button_helper -O3 -static (if you want with debug run this instead : gcc -DDEBUG power_button_helper.c -o power_button_helper -O3 -static)
3. Install executable : sudo cp power_button_helper /usr/local/bin/power_button_helper
4. Install service : cp power_button_helper.service /etc/systemd/system/power_button_helper.service
5. execute : sudo systemctl enable power_button_helper and reboot

Don't Compile and Install

1. Do steps 3-5 but download the power_button_helper from release

How it does it

1. First it checks if 5 is in the /sys/android_brightness/brightness_light
2. Then stores the contents of /sys/class/leds/lcd-backlight/brightness
3. After that it copys 0 to /sys/class/leds/lcd-backlight/brightness
4. Now it restores the content of step 2
5. This is repeated every half second