Raymond I have done that. Also today I was able to test an Asus Xonar U7 but the edition of the card which is not the Echelon edition. I believe the two cards are the same hardware but the echelon edition had additional Windows software included and for some reason Asus decided to change the USB name
This non-Echelon version presents itself as "Xonar U7" to alsa and adding '"Xonar U7" 1' to USB-Audio.pcm.iec958_device appears to work as aplay -L | grep -A 2 iec958 reports iec958:CARD=U7,DEV=0 Xonar U7, USB Audio #1 IEC958 (S/PDIF) Digital Audio Output I still wasn't able to play directly from it - I guess I need to do further work in pulseaudio too. I can't test that as I only had the card on loan but will progress this once alsa-devel have a fix for the '.' in my own Echelon card name -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1498129 Title: Asus Xonar U7 S/PDIF output not recognized by pulseaudio To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1498129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs