Hi Laurent, On Thu, Oct 18, 2018 at 02:42:29AM +0300, Laurent Pinchart wrote: > Hi Bin, > > On Thursday, 11 October 2018 22:31:42 EEST Bin Liu wrote: > > 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? > > Unfortunately, the asynchronous control request data stage validation > mechanism must be implemented by every UDC. This patch series only addresses > MUSB as this is Paul's main test platform. Once the core patches get reviewed > and the API accepted (possibly in a modified form), we plan to update the DWC2 > and DWC3. Thanks for the explanation. Regards, -Bin.
