Get source code and extract tar.gz file. (the deb package doesn't include this module.) cd drivers make (become the root user) make install
e.g. * mplayer: mplayer -ao alsa:device=hw=1.0 song_file * mpg321: mpg321 -o alsa09 -a hw:1,0 song_file If you don't want to use the gui, you can run raop_play from the command line, but you need to know the ip address of your AEX. * raop_play your_aex_ip /tmp/pcmout To use as KDE sound system, go to 'Control Center' - 'Sound System' - 'Hardware', check 'Override device loaction' and set the device name like 'hw:1,0'
alsa_raoppcm is a simple alsa pcm driver, which gets sound data from the upper alsa layer and feed the data to a character device instead of audio hardware. The character device is also created in the same driver and which has dynamically assigned major node. It can be seen in /proc/devices once the module is successfully installed. raop_play reads pcm data from that character device. When there is no data from the device, raop_play keeps sending a small silent data and tries not to be disconnected.
Shiro Ninomiya <shiron_AT_snino_DOT_com>