Well, the history shows it was there from the very beginning, so it is unclear (at least to me) why it was needed. Chris On Thu, Jul 2, 2020 at 11:00 PM Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, Jul 02, 2020 at 05:11:11PM -0700, Chris Dickens wrote: > > Hi, > > > > I've never understood it, so I figure I might as well just ask. Why > > does the Microsoft OS descriptors support require the allocation of a > > separate USB request for the composite gadget device? Both the > > default control request buffer and the "special" OS descriptors buffer > > are the same size (4KB) and use the same completion handler. As far > > as I can tell there is nothing distinct between them. There's only > > ever one outstanding USB request queued to ep0, so can the dedicated > > USB request be removed and just share the default one? I'm happy to > > provide a patch, unless of course I've missed something. > > Try it and see, I think it was needed for some reason, but look at git > history to be sure. > > thanks, > > greg k-h
