I had modified the USB-Audio.conf exactly as you suggested.
ALSA is working with iec958 interface, which is routed to hw:1,1, but pulseaudio still redirects "S/PDIF output" to hw:1,0 (that is: Analog Stereo).
Probably your friend is running a different version of Ubuntu and/or Pulseaudio.
I am running Ubuntu Ubuntu 14.04.4 LTS with the kernel 3.19.0-51-lowlatency (aka linux-image-lowlatency-lts-vivid) from trusty-updates repository.
g0ukb: thank you for your suggestions.
I had modified the USB-Audio.conf exactly as you suggested.
ALSA is working with iec958 interface, which is routed to hw:1,1, but pulseaudio still redirects "S/PDIF output" to hw:1,0 (that is: Analog Stereo).
Probably your friend is running a different version of Ubuntu and/or Pulseaudio. 51-lowlatency (aka linux-image- lowlatency- lts-vivid) from trusty-updates repository.
I am running Ubuntu Ubuntu 14.04.4 LTS with the kernel 3.19.0-
Have no idea what else can I do. :(