On Wed, Sep 06, 2023, Thinh Nguyen wrote: > On Wed, Sep 06, 2023, Michael Grzeschik wrote: > > > > > 2) Burst setting > > > I think this is self-explainatory. Large data request needs > > > higher burst. > > > > I will have to find out if the burst setting can be changed on the > > rk3568 somehow. This sounds very likely. > > > > The dwc3 driver checks the endpoint descriptor from the UVC function > driver to setup the burst. So just setup the max 16 bursts (or 15 in the > descriptor). The dwc3 controller supports that. Whether the host would > do 16 bursts is another thing. Note that there's no "mult" setting for > SuperSpeed. Clarification: no mult setting for the dwc3 controller when operate in SuperSpeed. Thinh > > I recall that UVC tries to pack a lot of data in a single request. All > the while some intervals it would send 0-length data because of idle > time. I would spread to more requests with a little less data to give > the host a little more breathing room and bandwidth. > > BR, > Thinh
