On Tue, 5 Jan 2016, [iso-8859-1] Niccol�lli wrote: > Hi Graeme, > Here is the USBMon trace of the timeout: > https://sourceforge.net/p/dispcalgui/bug-reports/_discuss/thread/73a10891/735c/attachment/1.mon.out.txt > I also uploaded a video on youtube to show when I get the timeout: > https://www.youtube.com/watch?v=_W7j8j4pKKQ&feature=youtu.be > It manages to calibrate the display and to read all the patches to make the > profile, but when it finally wants to access the instrument once again for > the final verification step it fails. > I CCed Alan Stern as you suggested. The only thing that looked suspicious in the usbmon trace was the way the program issued Clear-Halt requests for endpoints 1, 2, and 3 each time it started up. Such things can lead to toggle mismatch errors, depending on the device. In general it's a good idea never to use Clear-Halt unless you really do need to clear an endpoint's Halted feature. If those requests were removed from the program, perhaps the timeout won't occur. Alan Stern -- 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
