Comment 4 for bug 1598309

Note that if the alsa packaging issues are resolved then direct access to /dev/snd/* devices will be needed as well. These aren't (and shouldn't) be included in pulseaudio because with pulseaudio snaps talk to pulseaudio and it is pulseaudio that has direct hardware access (this also happens to be a secure way of handling audio-- in general it is much better when you don't have to hand out device files to snaps). In other words, if direct alsa access is deemed worthwhile, it should be its own interface.