On Wed, Jun 19, 2024 at 10:44:15AM +0900, Paul Elder wrote: > On Sat, Jun 15, 2024 at 10:33:28PM -0400, Alan Stern wrote: > > On Sat, Jun 15, 2024 at 10:49:46PM +0200, Andrey Konovalov wrote: > > > On Sat, Jun 15, 2024 at 4:12 AM Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > > > There has been a patch posted to support UDC drivers that don't > > > > automatically acknowledge non-zero-length control-OUT transfers. But > > > > the patch hasn't been merged, and even if it were, all the existing UDC > > > > drivers would still need to be updated. > > > > > > This series below is the one you're referring to, right? > > > > > > https://lore.kernel.org/linux-kernel/20190124030228.19840-1-paul.elder@xxxxxxxxxxxxxxxx/ > > > > Yes, that's it. I'm impressed that you were able to find it; I had lost > > track of it. > > > > > Do you know why it wasn't merged? (CC Paul). There are no comments on > > > the latest version I managed to find. > > > > I guess Felipe Balbi (the USB Gadget maintainer at the time) just wasn't > > very interested in fixing the problem. > > So that's why we never continued with merging it... > > Is it time to dust it off and try to upstream it again? :) You certainly could try. But be sure to add a supports_explicit_status flag to the usb_gadget structure. Alan Stern
