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99691640 asked JeanineZhang-MSFT edited

About Extension Unit of USB Audio Class 1 Device

How do I control the Extension Unit in UAC?

Only the introduction of UVC Extension Unit can be found on the official website, as follows:

https://docs.microsoft.com/en-us/windows-hardware/drivers/stream/introduction-to-usb-video-class-extension-units

But I haven't found any relevant information about UAC's Extension Unit.

Is it that Microsoft does not support this part of control?

Thank you!

windows-hardware-wdk
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