Hi, On Tue, Oct 09, 2018 at 10:48:57PM -0400, Paul Elder wrote: > This patch series adds a mechanism to allow asynchronously validating > the data stage of a control out request, and for stalling or suceeding > the request accordingly. This mechanism is implemented for MUSB, and is > used by UVC. At the same time, UVC packages the setup stage and data Why is this for MUSB only? Other UDC such as DWC3 doesn't need this? Regards, -Bin.