On Tue, Dec 15, 2015 at 04:06:14PM +0800, Mengdong Lin wrote: > I still have some basic questions: > 1. What are the typical usages for aux_dev? > For CODEC<->CODEC link or external headset detection chip? Neither, it's for analogue devices. > 2. Why we need the rtd array 'rtd_aux' for the aux_devs? > If the codec has DAIs and used by a DAI link, the ASoC will create a rtd > for the link. There are (or were at the time) assumptions in drivers that there will be a rtd there so it was easier to provide a stub.
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