redragon-lights.py: Add debugging
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@ -15,6 +15,7 @@ import usb.core
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vendor=0x258a
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product=0x0049
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debug = 0
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screensaver_list = [
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'org.gnome.ScreenSaver',
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'org.cinnamon.ScreenSaver',
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@ -23,6 +24,7 @@ screensaver_list = [
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]
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def main():
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global debug
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parser = argparse.ArgumentParser(
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description='Adjust backlight for Redgradon Horus K621',
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add_help=True,
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@ -33,6 +35,8 @@ def main():
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default=None, help='Turn keyboard backlight off')
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parser.add_argument('--screensaver', '-s', dest='screensaver', action='store_true',
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default=None, help='Turn keyboard backlight off')
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parser.add_argument('--verbose', '-v', action='count',
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default=0, help='Print more verbose information (can be specified multiple times)')
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args = parser.parse_args()
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@ -40,30 +44,36 @@ def main():
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parser.print_help()
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sys.exit(1)
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debug = args.verbose
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if args.screensaver:
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dbus_loop = dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
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session = dbus.SessionBus(mainloop=dbus_loop)
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for screensaver in screensaver_list:
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session.add_match_string_non_blocking("interface='{}'".format(screensaver))
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#session.add_match_string_non_blocking("interface='org.gnome.Mutter.IdleMonitor'")
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session.add_message_filter(message_callback)
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session.add_message_filter(screensaver_message_callback)
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loop = gi.repository.GLib.MainLoop()
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loop.run()
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else:
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kbd = setup_usb()
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send_packets(kbd, args.switch)
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def message_callback(session, message):
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def screensaver_message_callback(session, message):
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global debug
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for screensaver in screensaver_list:
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if message.get_interface() == screensaver:
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pprint.pprint(message)
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if debug > 2:
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pprint.pprint(message)
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# not supported in org.freedesktop.ScreenSaver:
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# Error org.freedesktop.DBus.Error.NotSupported: This method is not part of the idle inhibition specification: https://specifications.freedesktop.org/idle-inhibit-spec/latest/
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if message.get_member() == "ActiveChanged" or message.get_member() == "WakeUpScreen":
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try:
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screensaver_changed = bool(message.get_args_list()[0])
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print("Screen saver {} changed: ActiveChanged is {}".format(screensaver, screensaver_changed))
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if debug > 1:
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print("Screen saver {} changed: ActiveChanged is {}".format(screensaver, screensaver_changed))
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except:
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pass
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# Capture the GetActive method call in a try/except, or the screensavers that
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@ -77,7 +87,8 @@ def message_callback(session, message):
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time.sleep(0.25)
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status = bool(screensaver_iface.GetActive())
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print("Screen saver {} changed. GetActive: {}".format(screensaver, status))
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if debug > 1:
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print("Screen saver {} changed. GetActive: {}".format(screensaver, status))
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# Screensaver is now active; turning the screen back on is handled here with WakeUpScreen
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if status:
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@ -91,7 +102,8 @@ def message_callback(session, message):
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try:
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# Delay slightly to avoid conflicting with ActiveChanged's GetActive() above
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time.sleep(0.25)
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print("Screen saver {} changed: WakeUpScreen".format(screensaver))
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if debug > 1:
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print("Screen saver {} changed: WakeUpScreen".format(screensaver))
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kbd = setup_usb()
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send_packets(kbd, True)
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except:
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@ -100,19 +112,22 @@ def message_callback(session, message):
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# Set up USB
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def setup_usb():
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global debug
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kbd = usb.core.find(idVendor=vendor, idProduct=product)
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if kbd is None:
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raise ValueError('Keyboard not found; perhaps switch to USB mode?')
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print("Product: ", kbd.product)
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print("Manufacturer: ", kbd.manufacturer)
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if debug > 0:
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print("Product: ", kbd.product)
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print("Manufacturer: ", kbd.manufacturer)
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return kbd
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# Send packet/s
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def send_packets(kbd, switch):
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global debug
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if kbd is None:
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setup_usb()
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@ -135,7 +150,8 @@ def send_packets(kbd, switch):
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else:
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pattern = 0x00 # off
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print("Sending pattern {} command".format(pattern))
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if debug > 1:
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print("Sending pattern {} command".format(pattern))
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# This message tweaks the pattern between OFF (0x0) and the white shadow_disappear pattern (0x9)
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# with brightness 1/4 and speed 3/4 (I think)
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@ -159,11 +175,11 @@ def send_packets(kbd, switch):
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if e.errno == 16:
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print("This issue needs more investigation... it may simply be previous invalid commands")
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# May need to reconfigure the device, or detach/reattach kernel driver, either for interface 0 or 0 _and_ 1
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# if detaching/reattaching, swallow errors with try/except
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elif e.errno == 2:
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print("Try unplugging and replugging the keyboard...")
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sys.exit()
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if __name__ == '__main__':
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#atexit.register(cleanup)
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main()
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