36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
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#!/usr/bin/env python3
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# coding: utf-8
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from sys import argv
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import dbus
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def kb_light_set(delta):
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bus = dbus.SystemBus()
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kbd_backlight_proxy = bus.get_object('org.freedesktop.UPower', '/org/freedesktop/UPower/KbdBacklight')
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kbd_backlight = dbus.Interface(kbd_backlight_proxy, 'org.freedesktop.UPower.KbdBacklight')
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current = kbd_backlight.GetBrightness()
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maximum = kbd_backlight.GetMaxBrightness()
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new = max(0, current + delta)
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if 0 <= new <= maximum:
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current = new
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kbd_backlight.SetBrightness(current)
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# Return current backlight level percentage
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return 100 * current / maximum
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if __name__ == '__main__':
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if len(argv[1:]) == 1:
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if argv[1] == "--up" or argv[1] == "+":
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# ./kb-light.py (+|--up) to increment
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print(kb_light_set(1))
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elif argv[1] == "--down" or argv[1] == "-":
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# ./kb-light.py (-|--down) to decrement
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print(kb_light_set(-1))
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else:
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print("Unknown argument:", argv[1])
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else:
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print("Script takes exactly one argument.", len(argv[1:]), "arguments provided.")
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