On Fri, 2011-03-04 at 08:37 +0200, Tanu Kaskinen wrote: > On Tue, 2011-03-01 at 15:20 +0000, Liam Girdwood wrote: > > > > UCM supports between 0..n active devices per verb. e.g. it is possible > > to enable both the headphone device and speaker device at the same time. > > Right, I missed this. But these multiple devices must share the PCM > device, because there can be only one PCM device associated with a verb. > Yes, devices 0..n will use the same PCM here. > > > > If we have verb+device pairs, how would we enable the Music verb and > > play to more than one device at the same time ? > > With modifiers that enable more devices. But yeah, since UCM supports > defining multiple devices per verb as long as they use the same PCM > device, it would be good if Pulseaudio would support this kind of > configuration too. So, I hereby change my proposal: there would be one > profile per verb, not per verb+device. This is then the same approach > that Margarita started with :) If a verb has multiple devices defined > for it, ports would be generated for the sink/source for each possible > combination of those devices. > > Otherwise my proposal stays the same: modifiers are modeled using > mappings or ports, depending on whether the modifier PCM device is > different or the same that is already associated with some already > existing mapping in the profile. Profiles will have to be changed so > that mappings can be activated independently, without interrupting > streams going to already activated mappings. > Ok, make sense to me too. Thanks Liam
