Hi Alan, On Fri, Apr 10, 2015 at 7:23 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Fri, 10 Apr 2015, Alistair Grant wrote: >> On Fri, Apr 10, 2015 at 5:29 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: >> > On Fri, 10 Apr 2015, Alistair Grant wrote: >> > ... >> >> i.e. the mouse works reliably in eHCI controllers, but not in xHCI >> >> controllers (I've tried two different Intel xHCI controllers). The >> > >> > Have you tried testing a different mouse? >> >> I've got two other mice that work(ed) with xHCI (the first has died, >> which led to buying the one with the problems, and a second one which >> was purchased to tide me over while I try and figure out the problem >> with the problem mouse). > > It does sound as though the mouse is the major part of the problem. > >> > Can you post the usbmon log for an EHCI controller? Comparing the two >> > logs may be helpful. > > Here's the relevant part of the xHCI trace: > ... Thanks very much for your detailed analysis, I really appreciate it (as someone trying to learn a little about the USB protocol). I was hoping that this was hitting an edge case with the xHCI driver, but as you say, it looks like the mouse is at fault. Thanks again, Alistair -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
