There is a xillybus system providing a device file for the audio CODEC ADAU1761 in xillinux.
The CODEC can be used as a pulse device from alsa, but not a traditional ALSA sound card like having a kernel driver.
There is an ongoing work about making this device file an ALSA device using the ALSA file plugin, http://billauer.co.il/blog/2014/04/alsa-pipe-playback-capture/
Does somebody have an idea about this issue?
We are trying to make the xillybus_audio device as an ALSA device.