25 Feb
2014
25 Feb
'14
4:09 p.m.
On Tue, Feb 25, 2014 at 9:41 AM, Fons Adriaensen <fons(a)linuxaudio.org>wrote;wrote:
On Tue, Feb 25, 2014 at 08:39:14AM -0500, Paul Davis
wrote:
AFAIK, when using the MMAP access mode, you always get the full channel
count. Which makes sense, since what gets mapped into user space may
very well be an actual HW buffer having a fixed layout (which may be
interleaved, complex-interleaved, etc.)
the option doesn't alter what the JACK backend sees from ALSA (or
wherever). it changes which channels get represented by JACK ports.
On Tue, Feb 25, 2014 at 8:25 AM, Jörn
Nettingsmeier <
nettings(a)stackingdwarves.net> 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...
imagine you have an N (where N > 16) channel device but only channels 1-4
are connected. the channel count option stops you from having to look at
N-4 useless channels on the device all the time.