Re: btw

[Takashi Iwai <tiwai@suse.de>]

At Thu, 17 Oct 2002 10:20:42 -0500,
mark@undertone.org wrote:
> 
> > - whether the files mathing with native format are ok.
> 
> Yup, seems to work fine. To continue the testing from before with this
> newfound pcm stream, the only newfound knowledge is that the "pcm"
> control seems to work.

a good news!


> > - whether the file above with OSS emulation works (which converts
> >   inside the kernel).
> 
> Uh hmm doesn't seem to. I'm truthfully not sure of the most ideal way
> to test this. I tested it by loading up the alsa-oss modules and using
> some oss programs that reference /dev/dsp (which in this case gets
> symlinked to sound/dsp).
 
i guess you got some kernel messages when aplay fails, such like
"cannot set format: ..." ?  could you show the message?


> > i'm not sure what's going on there, but the lsusb output once you sent
> > me contains much more supported formats.
> > and i experienced that the similar phenomenon happened on other
> > usb-audio devices - not the whole descriptors are parsed.
> > the behavior might be changed if you reboot.  sigh...
> 
> I've rebooted many times. Seems consistant.

well, but you got once better results.
possibly this can be a bug of the usb-audio driver.
is the driver built with --with-debug=detect option?
if so, please show the kernel messages, and we get to know what
happened.


> > i guess it's likely a bug of usb controller modules.
> 
> Suck. With the work being put in, I wonder how hard it would be to
> cajole Creative Labs to ship you a free extigy to play with, heh. Who
> knows, they might even end up supplying some specs.

:)

Takashi


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