Karsten, > > 1. Patch jack's alsa driver, compile and install it: > >>>>>>> > --- alsa_driver.c.~1.65.~ 2005-02-22 01:15:07.000000000 +0100 > +++ alsa_driver.c 2005-02-22 01:16:32.000000000 +0100 > @@ -450,7 +450,7 @@ > } > > if ((err = snd_pcm_hw_params_set_channels (handle, hw_params, > - *nchns)) < 0) { > + 2 /* *nchns*/)) < 0) { > jack_error ("ALSA: cannot set channel count to %u for %s", > *nchns, stream_name); > return -1; > <<<<<<< > 2. > $ modprobe snd_usb_usx2y nrpacks=1 > 3. > $ jackd -R -dalsa -dhw:0,2 > I once asked if this patch is really necessary. I think, but not sure (as I gave no us428 here), it is quite equivalent to start jackd explicitly with -i2 -o2 arguments. Am I wrong? Cheers. -- rncbc aka Rui Nuno Capela rncbc@xxxxxxxxx