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| #!/usr/bin/env python2
# encoding: utf-8
"""
File: udev.py
Description: udev monitor script.
Author: Donie Leigh
Email: donie.leigh at gmail.com
"""
import glib, os, time
from pyudev import Context, Monitor
PID_FILE = "/tmp/udev_monitor.pid"
def remap_pokerii(device):
""" Do keyboard remapping when PokerII is plugged in.
"""
if device.get('ID_VENDOR_ID') == '0f39' \
and device.action == 'add':
time.sleep(1)
os.system('setxkbmap')
os.system('xmodmap ~/.Xmodmap')
def remap_filco(device):
""" Do keyboard remapping when Filco is plugged in.
"""
if device.get('ID_VENDOR_ID') == '04d9' \
and device.action == 'add':
time.sleep(1)
os.system('setxkbmap')
os.system('xmodmap ~/.Xmodmap')
def is_pid_running(pid):
""" Check if the given pid is running.
:pid: int
:returns: bool
"""
try:
os.kill(pid, 0)
except OSError:
return False
return True
def write_pid_or_die():
""" Write the current pid into pid file or exists if there is already a instance running.
:returns: void
"""
if os.path.isfile(PID_FILE):
pid = int(open(PID_FILE).read())
if is_pid_running(pid):
print("Process {0} is still running.".format(pid))
raise SystemExit
else:
os.remove(PID_FILE)
open(PID_FILE, 'w').write(str(os.getpid()))
def main():
try:
from pyudev.glib import MonitorObserver
def device_event(observer, device):
remap_pokerii(device)
remap_filco(device)
except:
from pyudev.glib import GUDevMonitorObserver as MonitorObserver
def device_event(observer, action, device):
remap_pokerii(device)
remap_filco(device)
context = Context()
monitor = Monitor.from_netlink(context)
monitor.filter_by(subsystem='usb')
observer = MonitorObserver(monitor)
observer.connect('device-event', device_event)
monitor.start()
glib.MainLoop().run()
if __name__ == '__main__':
write_pid_or_die()
try:
main()
except KeyboardInterrupt:
print("Game over.")
|