Julien Claassen wrote: > I was wondering, is there a difference in opening a device like > plughw:0,0 > and > plug:pcm.my_own_device
If my_own_device is defined as a hw device, no. > I've looked in the code of aplay aplay is more a debugging tool for driver than an example for application writers. > The application is question is chan_alsa from asterisk. So it's quite > limited: configured for 8kHz, 16bit (either se or le) and mono. They use a > fixed periodsize and connected buffer. There is no guarantee that ALSA devices support any particular period or buffer sizes. > I want to connect a pcm-device wired to JACK to the asterisk software, yet > it either tells me, that the argument is invalid Plug:pcm.name or plug:name) > or it gets read/write errors or it simply crashes. I've looked into chan_alsa.c; it doesn't take the actual period size into account when setting the buffer size (so it could be possible that the buffer is too small), and it doesn't abort on errors (so the actual device parameters could be anything). Are there any error messages in the asterisk log? Regards, Clemens _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev