[pulseaudio-discuss] [PATCH 3/6] Cards now has ports directly, and device port has list of profiles

Arun Raghavan arun.raghavan at collabora.co.uk
Tue Nov 8 02:30:35 PST 2011

On Thu, 2011-11-03 at 21:04 +0200, Tanu Kaskinen wrote:
> Somehow keeping a list of profiles in the ports doesn't feel right -
> it's as if that list would have been thrown there just to make things
> convenient for some random code... But I guess there's a reason, which
> just isn't apparent from this patch yet, for having that list there.

This is my largest concern as well. It's the same concern that I had
with Mengdong's suggestion that profiles should have an intended role --
this feels conceptually incorrect, but becomes necessary because we
don't know anything about the sink that will appear when the profile is

So this is my proposal -- all possible sinks for a card should be
created upfront, in an "inactive" state. This way, from both the
jack-detection and routing fronts, we can see what sink we want, and if
it is inactive, we activate it by going to the profile it "belongs" to
and activating that (clearly some conflict-resolution will be needed
here too).

This isn't a trivial change, but it's something that's been coming up
repeatedly, and I'd be much happier if we took a little longer and did
it right.



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