>> >> > >> > This should allow us to automatically probe devices using the recent >> > firewire drivers, as well as some USB devices people have been asking >> > about lately. >> > >> > Sorry that it has taken some time since I said I would work on this patch >> > set, and I've rewritten and rethought it as well a few times. Anyway, >> here's >> > a proposal. >> > >> > * Exact-channels can be set to false to allow devices to be opened with >> > any channel count instead of just the one specified in the channel >> map. >> >> Do these kind of devices need more than one profile if they have same >> channel Min and channel Max and both are larger than two ? > > > This seems to be the common case that we're trying to handle here, and it will end up with the profiles "off", "generic input" "generic output" and "generic output + generic input". > > >> How can user capture stereo from a FireWire device which only support 6 >> channels > > > With this patch set, PA will setup a default channel map. I e, recording stereo will mean recording from the first two channels. > If you can provide a virtual stereo playback/capture on a multichannel devices which does not support stereo Does this mean that virtual surround40, surround51 will also be supported ? > >> capture as pulseaudio downmix 6 channels to stereo for playback >> stream? >> >> Can pulseaudio provide a control to select stereo capture from first >> Jack, second jack .... ? > > > You'll need module-remap-source for that. > > >> The problems are non standard volume control names > > > The firewire drivers currently don't implement volume controls the normal ALSA mixer way. > For some other cards (PCI, USB), you're right that the names are sometimes non standard. Please fix that in ALSA. :-) > Do you really need to probe all other profiles when your first probe already know both channels_min and channels_min are same and larger than two ?