Fedor G. Pikus wrote:
> On Fri, 20 Sep 2002, Clemens Ladisch wrote:
>
> > case EXPIRED:
> > snd_printd("capture read error (DMA or IRQ trouble?)\n");
> > err = -EIO;
> >
> > Are you _really_ sure you have recompiled the entire alsa-driver package
> > with debug output, installed it correctly, and there's nothing in the log?
>
> kernel: ALSA ../alsa-kernel/core/pcm_lib.c:2212: EXPIRED in snd_pcm_lib_read1 ...
The "capture read error" message should have been printed.
I guess debug output isn't really enabled for your ALSA core.
> when everything works ok it gets interrupted but when I'm trying to record
> at 96000 it does not. Where do I look now?
Apparently, the USB packets don't arrive, or the driver thinks they don't
arrive, or the driver doesn't like them and throws them away.
In theory, snd_complete_urb is called when some data has been received
from the device, and this function calls retire_capture_urb. Please check
whether those functions are really called.
HTH
Clemens
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