On Fri, 2015-06-26 at 11:50 +0100, Kaskinen, Tanu wrote: > On Tue, 2015-06-23 at 10:51 +0300, Tanu Kaskinen wrote: > > (Added pulseaudio-discuss to CC.) > > > > On Mon, 2015-06-22 at 17:44 +0200, Takashi Iwai wrote: > > > At Mon, 22 Jun 2015 15:21:16 +0000, > > > Kaskinen, Tanu wrote: > > > > > > > > On Mon, 2015-06-22 at 14:29 +0100, Liam Girdwood wrote: > > > > > Btw, the topology core now also dynamically > > > > > creates/removes mixer controls, can PA handle this atm ? > > > > > > > > No, PA checks the mixer controls only when loading a new card. > > > > Dynamically added controls are ignored. Dynamically removed controls > > > > just cause silent failure, at least when setting volume (I didn't check > > > > other use cases). That is, changing the volume appears to succeed, but > > > > nothing actually happens. > > > > > > Won't PA use ELD or other information? The corresponding controls to > > > HDMI/DP will be created / deleted dynamically together with a PCM > > > device, I suppose. > > > > Yes, PA uses ELD. If mixer controls become dynamic too, then that's > > another thing to implement. > > Liam, how does the userspace know when the new PCM is ready to use? It's generally ready when the PCM is created iirc. > If > new mixer controls are added too, it has to be defined which gets > created first: the PCM device or the mixer controls. I think it would be > best if the mixer controls get created first, and when the new PCM > device appears, it's immediately fully ready to be used. > I agree, adding mixers first make sense. Liam _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
