[pulseaudio-discuss] [PATCH] Introduce "available" concept for ports, and communicate that to clients. Bump protocol version to 24.

[David Henningsson]

On 10/19/2011 12:11 AM, Pierre-Louis Bossart wrote:
>> Did you miss my previous explanation, or did you find it insufficient?
>> I'm repeating it below:
>>
>> "The protocol skew in Ubuntu 11.10 was actually a mistake on my part.
>> Since the UI changes that would depend on this information being
>> available was backed out, I probably should have backed the actual
>> protocol change out as well.
>>
>> Anyway, here is the patch that forms one of the base features for jack
>> detection, and brings upstream out of protocol skew with Ubuntu 11.10."
>
> I honestly did not understand the explanation, most likely because I use
> Fedora for historical reasons and have no idea about the content of Ubuntu
> 11.10...What type of client will make use of this information?

My use case is volume control UIs (pavucontrol, gnome volume control, 
etc) - they can use the information to hide three of the four HDMI 
ports, keeping only the right one. Or hide headphones when they are not 
plugged in.

But in Ubuntu 11.10 no client actually uses this information, which is 
why the protocol skew was a mistake.

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