[alsa-devel] [PATCH v3] ASoC: Add support for cs42l73 codec

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Oct 7 12:27:41 CEST 2011


On Fri, Oct 07, 2011 at 02:13:32AM +0000, Tabi Timur-B04825 wrote:

> > +/* I2C Registers */
> > +/* I2C Address: 1001010[R/W] - 10010100 = 0x94(Write); 10010101 = 0x95(Read) */

> This chip has separate I2C addresses for reading and writing?

This is standard - the I2C address can be quoted in either 8 bit form
(where the lowest bit is a read write flag) or 7 bit form.  The
confusing thing here is that the Linux code uses the 7 bit form
exclusively.


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