Re: [alsa-devel] ASoC:Question rate constraint between the dais

On Thu, Mar 15, 2012 at 05:28:13PM -0400, Trent Piepho wrote:

There is a race when the constraints change dynamically. See the fsl_ssi.c driver and the sample size constraint in synchronous mode.

This is just a limitation of the ALSA ABI - there's nothing we can do about it without changing the userspace interface so we just have to live with it and error out if an application ever manages to hit the race and pick something incompatible with other active streams (note that the symmetric rates support has a dev_warn() complaining about hitting the race).