Hello Alan, thanks for Your reply. > > under both 3.10 and 3.13 kernels, I only get it just got a bit more complicated.. we've found, it randomly sometimes works, sometimes not on all those kernels (3.10, 3.13, 3.14), so it's not that on <=3.13 it doesn't work and for 3.14 it works. I'll try to gather some debug info on failing cases and report further.. nik > > > > [Apr 1 10:56] usb 2-1.1: usbfs: USBDEVFS_CONTROL failed cmd usbhid-ups rqt 128 rq 6 len 255 ret -110 > > Error code -110 is -ETIMEDOUT. I don't know why a command would time > out under one kernel but not another. > > > under 3.14 it works. However I'd really love to get this working under 3.10.x > > kernel, so my idea was to backport needed fixes/patches to 3.10 (possibly getting > > them to -stable if appropriate). > > > > I don't see any obvious patches in git to try, so I was wandering, > > maybe somebody could give me a hint on what to check? > > It's pretty hard to say without more information. For example, usbmon > traces under 3.13 and 3.14 would be a good start. It might also help > to see a kernel log with CONFIG_USB_DEBUG enabled. > > > or is this all nonsense? > > Instead of trying to backport patches, why not just upgrade the whole > kernel? > > 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 > -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28.rijna 168, 709 00 Ostrava tel.: +420 591 166 214 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis@xxxxxxxxxxx -------------------------------------
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