Re: Support for USB-Audio devices with Multiple configurations?

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Cameron Stone wrote:
> Clemens Ladisch wrote:
> > Each alternate setting has its own set of descriptors; you can
> > change _any_ parameter in those descriptors.
> 
> Great, I've got this working now.
> 
> However, how do I ask arecord to use a particular alternate setting? I'd
> like to have two alternate settings with the same number of channels,
> but different microphones enabled. Is that possible?

This difference does not show up in the altsettings' descriptors, so the
driver would not know which one to choose.

This needs to be a mixer control (a selector unit).


HTH
Clemens
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