Bastien Nocera wrote:
> Looks like whether or not jack sensing works depends on the device
> itself, but there is a mechanism to propagate the change in setup in
> the USB Audio 2.0 spec

Some recent Windows 10 beta added partial support for USB Audio 2.0.
Earlier Windowses implement only USB Audio 1.0, which does not mention

> "
> A change of state in the audio function is most often caused by a
> certain event that takes place. An event can either be user-initiated
> or device-initiated. User-initiated jack insertion or removal is a
> typical example of a user-initiated event.
> "

There are not many USB Audio 2.0 devices, and I'm not aware of any
that actually implements this.

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