On Wed, 04 Feb 2009 13:09:37 +0100
Takashi Iwai <tiwai@xxxxxxx> wrote:
> At Wed, 4 Feb 2009 12:48:34 +0100,
> Hans-Christian Egtvedt wrote:
<snipp>
> > +static int atmel_ac97c_playback_hw_params(struct snd_pcm_substream
> > *substream,
> > + struct snd_pcm_hw_params *hw_params)
> > +{
> > + struct atmel_ac97c *chip =
> > snd_pcm_substream_chip(substream);
> > + int retval;
> > +
> > + retval = snd_pcm_lib_malloc_pages(substream,
> > +
> > params_buffer_bytes(hw_params));
> > + if (retval)
> > + return retval;
>
> Should be a negative-check.
>
For some reason if I only check for < 0, then the buffer is not
configured properly. Seems like the preallocation goes wrong for some
reason.
Any pointers to why?
I do snd_pcm_new(), then snd_pcm_set_ops(), then
snd_pcm_lib_preallocate_pages_for_all().
<snipp>
--
Best regards,
Hans-Christian Egtvedt
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