scripts for Odroid Go Advance

input.py

#!/bin/python3

"""
sets F6 + vertical pad to set volume, F6 + horizontal pad to set brightness
"""
import evdev
import subprocess

BRIGHTNESS_PATH = "/sys/class/backlight/backlight/brightness"

def set_volume(v):
	subprocess.call(["amixer","sset","Playback",v])

def set_brightness(v):
	current = int(open(BRIGHTNESS_PATH,'r').read())
	open(BRIGHTNESS_PATH,'w').write(str(current+v))

device = evdev.InputDevice('/dev/input/event2')

for event in device.read_loop():
	if event.type == evdev.ecodes.EV_KEY:
		print(evdev.categorize(event))

	if event.code == evdev.ecodes.BTN_TRIGGER_HAPPY6 and event.value == 1:
		device.grab()

	if event.code == evdev.ecodes.BTN_TRIGGER_HAPPY6 and event.value == 0:
		device.ungrab()

	if event.code == evdev.ecodes.BTN_DPAD_UP and event.value == 1:
		if evdev.ecodes.BTN_TRIGGER_HAPPY6 in device.active_keys():			
			print('volume up')
			set_volume('5%+')

	if event.code == evdev.ecodes.BTN_DPAD_DOWN and event.value == 1:
		if evdev.ecodes.BTN_TRIGGER_HAPPY6 in device.active_keys():
			print('volume down')
			set_volume('5%-')

	if event.code == evdev.ecodes.BTN_DPAD_LEFT and event.value == 1:
		if evdev.ecodes.BTN_TRIGGER_HAPPY6 in device.active_keys():
			set_brightness(-10)

	if event.code == evdev.ecodes.BTN_DPAD_RIGHT and event.value == 1:
		if evdev.ecodes.BTN_TRIGGER_HAPPY6 in device.active_keys():
			set_brightness(+10)