Hello,
The Plantronics Blackwire 3220 Series headset and the Dell Professional
Sound Bar AE515 are both USB-audio devices that show up with a digital
S/PDIF output that physically doesn't exist.
This can be fixed by adding them to the USB-Audio.pcm.iec958_device list
in USB-Audio.conf, with the following names:
"DELL PROFESSIONAL SOUND BAR AE5"
"Plantronics Blackwire 3220 Seri"
Patches for the respective devices are in the following alsa-lib pull
requests:
https://github.com/alsa-project/alsa-lib/pull/124
https://github.com/alsa-project/alsa-lib/pull/126
Many thanks,
James.
