[linux-audio-user] USX2Y rawusb mode

Rui Nuno Capela rncbc at rncbc.org
Thu Mar 3 07:41:45 EST 2005


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 at rncbc.org



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