This is not an issue in Raw Gadget, but it is related to its testing and usage.
The Dummy HCD/UDC does not support isochronous transfers. As a result, it's impossible to use it for connecting devices that require them, such as audio/video devices.
There was a patch for adding partial support for this, but it was rejected, as the support did not emulate the real hardware behavior; see the discussion on the patch for details.
xairy
commented
2 weeks ago
This is not an issue in Raw Gadget, but it is related to its testing and usage.
The Dummy HCD/UDC does not support isochronous transfers. As a result, it's impossible to use it for connecting devices that require them, such as audio/video devices.
There was a patch for adding partial support for this, but it was rejected, as the support did not emulate the real hardware behavior; see the discussion on the patch for details.