[pulseaudio-discuss] Relationship between Sink and Source ports

[David Henningsson]

On 02/03/2012 03:39 AM, Feng Wei wrote:
> Hi,
> I have a problem on panda board. I will describe it in small example.
> There are audio devices headset(inout) and speaker(out) and
> microphone(in), all of their pcm are hw:0,0. So we get the info in PA:
> 1 sink with two ports : headset and speaker
> 1 source with two ports: headset and microphone
> In PA, we could set port of sink and source separately, so we got
> [headset,headset], [headset,microphone], [speaker, headset] and
> [speaker, microphone] pairs. But actually only [headset,headset] and
> [speaker, microphone] is possible in mixer path. I can't find how
> could PA handle with such issues.
> My current idea is to put [headset,headset], [speaker, microphone]
> into different profiles, so no conflicts occur. Any other means?
> Comments?

I think your solution with two different profiles is correct (assuming 
your analysis of the problem is correct).

Having input paths affecting the output side and vice versa is very 
uncommon in the desktop world. Had it been common, maybe things would 
have been differently modelled.

-- 
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic