[wdmaudiodev] Re: Are volume and mute controls optional for UAC 1.0 device?

  • From: Clemens Ladisch <clemens@xxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Wed, 03 Dec 2014 08:50:30 +0100

Robert S. Giaraffa wrote:
> Are Mute and Volume controls both optional for a USB Audio Class 1.0
> compliant device?

Yes.  There is hardware that does not have these controls (e.g., the
Edirol UA-1A).

> Will Windows perform the volume/mute functions if the device does not
> declare these controls?

Yes.


Regards,
Clemens
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