On Tue, Feb 25, 2014 at 02:25:25PM +0100, Jörn Nettingsmeier wrote: > If the maximum channel count is always fixed by the hardware, what > is the point of the corresponding jackd option? As I said, I don't > remember if ever doing something other than throwing the "cannot set > channel count" error...
The -i and -o options probably work on 'plug' devices (and on aloop), but AFAIK they are useless for hw: devices. While developing zita-alsa-pcmi I wanted to add parameters to select channels - this just never worked, only one value (all channels) being accepted in all of the tests I did. So now it works the opposite way: you open the device and then read the number of channels that are available. When using the mmap access mode it's easy enough to read/write only the channels you want and to ignore the rest without any overhead, so in practice this not a problem. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev
