2010/2/19 Jaroslav Kysela <perex@xxxxxxxx> > On Thu, 18 Feb 2010, Lennart Poettering wrote: > > >> For the Mic Boost +20dB case , how PA handle this +20dB switch in the > "Flat > >> Volume" model if you did not expost the Mic Boost switch to the user in > the > >> mixer control ? > >> > >> +20dB is quite significant in with the Capture Volume control > > > > We currently don't cover boost switches, simply because tehre is no dB > > data queriable for them. > > > > I'd really prefer if those boost switches would be turned into binary > > volume elements which carry normal dB information like any other > > volume element. After all they are just a volume element, with only > > two steps. > > I like this idea. > > Jaroslav > > PA assume every sound card can only record from one capture source at the same time (like those AC97 card ) However HDA support multi streaming capture , the capture device 0 may have more than one subdevice "Capture sources" depend on the codec and device 2 has 2 subdevice for capturing "Input sources" on some codec Is HDA_SUBDEV_NID_FLAG or any API for the application to find the correct mixer control for these kind of capturing subdevices ? ( simple mixer api is not able to know the subdevice number ) _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
