[alsa-devel] Specifying the default buffer-size for snd-hda-intel
tiwai at suse.de
Thu Jul 14 09:56:35 CEST 2011
At Thu, 14 Jul 2011 14:13:48 +0800,
Raymond Yau wrote:
> > +config SND_HDA_PREALLOC_SIZE
> > + int "Pre-allocated buffer size for HD-audio driver"
> > + range 0 32768
> > + default 64
> > + help
> > + Speficies the default pre-allocated buffer-size in kB for
> > + HD-audio driver. A larger buffer (e.g. 2048) is preferred
> > + for systems with PulseAudio. The default 64 is chosen just
> > + from the compatibility reason.
> > +
> + range 0 32768
> - range 64 32768
> It seem that the minimum range cannot be zero
Zero is a valid value. Then the buffer isn't pre-allocated but
allocated at each time PCM is opened (more exactly hw_params is
> Does current PA server still work with sound drivers with 64K buffer ?
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