On Mon, 15 Apr 2019, Georg Chini wrote: > >> So what you are saying is that it's a "bug" or "feature" of the C3858 > >> CPU and can't be fixed, right? > > An unfortunate feature of the xHCI design is that bandwidth > > computations are all done internally by the xHC controller. There's no > > way to tell _how_ they were done, what the results were in detail, or > > to fix any mistakes. > > > > Alan Stern > > So what you are saying is still that the CPU has a bug because the > controller > seems to be integrated on the CPU: > > 00:15.0 USB controller: Intel Corporation Atom Processor C3000 Series > USB 3.0 xHCI Controller (rev 11) Well, it's a matter of terminology. Even though the xHCI host controller may be integrated on the same chip as the CPU, I'd still prefer to say the bug is in the host controller and not in the CPU. > Or can it be a firmware/board issue as well? That seems pretty unlikely. Alan Stern
