[alsa-devel] about sound/core/pcm_lib.c:1997: capture read error (DMA or IRQ trouble?)

[Akio]

> > so the unit is samples not frames. does snd_pcm_prepare will reset
> > the counter or not?
> 
> You said that snd_pcm_prepare() returns -EIO, so I guess the driver
> does not.

you mean the drivers doesn't work very well when snd_pcm_prepare called.
 
> > my platform is Freescale i.mx27 TO1, the audio driver is come from Freescale.
> Then I'd suggest you'd ask Freescale.

   thank you very much. I'll ask Freescale to clarify this problem.

> In any case I cannot help you if you don't tell me where to find the
> source code of the driver.

   Actually I can give the driver. How do I give you the file?
   thank you very much.

Best Regards,
akio