Re: snd-usb-usx2y 0.8.7 hwdep pcm oopses!

[Takashi Iwai <tiwai@suse.de>]

At Wed, 15 Dec 2004 15:32:34 +0100,
Karsten Wiese wrote:
> 
> > You can get the card number from ctl or pcm instance.
> > Check snd_*_get_card() functions.
> > 
> We haven't any of those yet, as hwdep device is the first one to be opened.

hwdep has also one - snd_hwdep_info_get_card().

> So we could change jackd's usx2y driver's parameters a little:
>  $ jackd -dusx2y -c1
> or
>  $ jackd -dusx2y --card 1
> in the jackd usx2y driver we would sprintf the real alsa devicenames like this:
> char hwdep_devicename[8];
> char pcm_devicename[8];
> int card; //holds card nr parameter
> 
> sprintf(hwdep_devicename, "hw:%i,1", card);
> sprintf(pcm_devicename, "hw:%i,2", card);
> 
> thus we'd hide away the complications from the commandline.

Yes, this looks much easier (also good for future changes of hwdep/pcm
assignment).


Takashi


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