Hi Kieran, On Fri, 16 May 2014 "Kieran Kunhya" <kierank@xxxxxx> wrote: > As requested I forward my bug report to the list: > > From time to time on an ASRock IMB-181D motherboard this device fails to be > added. > It seems to work reliably when using Windows 7. > The errors in dmesg vary but usually take the form: > [ 5.328040] usb 3-7: string descriptor 0 read error: -71 > (snip) > [ 10.333605] usbhid 3-7:1.0: can't add hid device: -71 > [ 10.333639] usbhid: probe of 3-7:1.0 failed with error -71 > I can provide a PicoLCD unit if necessary and possibly also fund a > fix/workaround. > > More information is available here: > https://bugzilla.kernel.org/show_bug.cgi?id=76341 Hm, picoLCD works for me, but I get -71 error code if I swap both data pins (but with read failure "device descriptor read/64, error -71"). Here it works with: J4, pin 1 = red J4, pin 2 = white J4, pin 3 = green J4, pin 4 = black J4, pin 5 = n/a I successfully tried on: - Gigabyte mainboard (GA-A75M-UD2H) (USB2 & USB3 ports) [3.15-rc5, 64bit] - Acer Travelmate 66x [3.15-rc2, 32bit] - Commell LE-365 [3.14, 32bit] - IEI KINO-690S1 [3.14, 64bit] Did some previous kernel release work? Could you provide verbose lsusb output and firmware version for your PicoLCD? Thanks, Bruno -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
