Re: [alsa-devel] [PATCH] ASoC: ak4642: Add ak4642_fill_cache function

On Fri, 2010-06-25 at 16:54 +0900, Kuninori Morimoto wrote:

ak4642 driver is used for ak4642/ak4643. So, reading real register value is better than using constant value.

To be honest, this is only really useful when the codec has some volatile registers. Forcing I2C reads for all IO will just slow down the driver.

Does this codec have volatile registers ?

Thanks

Liam