[alsa-devel] Template Based Coefficients Setting for Filters

Johannes Stezenbach js at sig21.net
Tue Aug 9 23:28:24 CEST 2011

(add back Cc:s)

Hi Steve,

On Tue, Aug 09, 2011 at 10:19:27AM -0700, Steve Calfee wrote:
> On 08/09/11 08:16, Mark Brown wrote:
> > On Tue, Aug 09, 2011 at 06:03:56PM +0530, Ashish Chavan wrote:
> > 
> >>    I am working on updating ASoC codec driver for Dialog's DA7210 codec
> >> (sound/soc/codec/da7210.c). This update would be a major functionality
> >> update in nature. Currently, I am implementing support for GP (general
> >> purpose) filters of this codec and need some opinions/comments.
> > 
> > Use _BYTES controls for this.  There are no existing users in ASoC,
> > though there should be shortly and there are generic ALSA examples.
> Hi Mark,
> Could you expand on this. Neither google or lxr found anything about
> _BYTES controls. Where is it defined in the source?

I've written a driver for ST32x, it will be in 3.1.  My patch
to use _BYTES controls were posted here not long ago, see


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