Can anyone explain why, if I make an ENUMERATED mixer element and name
it 'Capture Source', it shows up under the Capture category in
alsamixer, but as two buttons of which one is only selectable? And then,
when I name it 'Input Source', it shows up as a single item where I can
select the right source, but it shows up under 'Playback'?

What's the correct naming for this thing? I've seen drivers use "Input
Source" and "Capture Source" too...

johannes