[alsa-devel] [PATCH 1/2 v2] ASoC: soc-cache: block based rbtree compression

Mark Brown broonie at opensource.wolfsonmicro.com
Tue May 3 17:40:43 CEST 2011

On Tue, May 03, 2011 at 05:30:44PM +0200, Takashi Iwai wrote:
> Mark Brown wrote:

> > You don't need to retransmit the I2C device address or the register
> > address for every single register.

> Is this behavior achieved really by these patches?  As far as I read

As I've repeatedly said these patches only provide a building block for
that, they don't actually do anything to help with I/O by themselves.

> these two patches, they change how values are stored in the rb-tree.
> Now it'll be partially an array instead of one-value-per-node.  But,
> this doesn't change how snd_soc_read() / snd_soc_write() are called.

> Could you give an example which driver would be influenced actually?

There are no drivers that would benefit yet since the register caches
they rely on can't support this yet!

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