hello
I have a usb soundcard (audigy 2 nx) and I tried out the remote control with
lirc. yes, with a new linux (kubuntu 6.10) it works out of the box!
but when I unfortuenately pressed the power button, the soundcard shuts down
and lircd do not release the device /dev/lircd, thus also alsa hangs and even
repowering the soundcard do not help!
I wrote then a small python script using dbus, its my first deamon, shuting
down lircd if a signal on the dbus arrives... so I can repower the soundcard,
restart lircd and also alsa is automaticly available again!
maybe there would be a better solution, more easy to configure? on the other
hand am I able now to use the power button as normal event button, and I am
very happy!
Andreas
>>>> dbus_watch.py <<<<
#!/usr/bin/python
import gobject
import dbus
import dbus.glib
import os
def device_removed_callback(udi):
if udi \
== '/org/freedesktop/Hal/devices/usb_device_41e_3020_noserial_if0_oss_pcm_0_0':
os.system('/etc/lirc/lirc.stop')
print '\7' # beep
def device_added_callback(udi):
if udi \
== '/org/freedesktop/Hal/devices/usb_device_41e_3020_noserial_usbraw':
os.system('/etc/lirc/lirc.start')
print '\7' # beep
bus = dbus.SystemBus()
hal_manager_obj = \
bus.get_object('org.freedesktop.Hal', '/org/freedesktop/Hal/Manager')
hal_manager = dbus.Interface(hal_manager_obj, 'org.freedesktop.Hal.Manager')
hal_manager.connect_to_signal('DeviceAdded', device_added_callback)
hal_manager.connect_to_signal('DeviceRemoved', device_removed_callback)
mainloop = gobject.MainLoop()
mainloop.run()
>>>> end of code <<<<
replace the dbus string (like /usb_device_41e_3020_noserial_if0_oss_pcm_0_0)
with a one you observed while watching the dbus with lshal --monitor
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