From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bruno =?UTF-8?B?UHLDqW1vbnQ=?= Subject: Re: usbhid: PicoLCD 256x64 USB error -71 Date: Sun, 18 May 2014 20:37:18 +0200 Message-ID: <20140518203718.5422588f@neptune.home> References: <032001cf7156$31a75610$94f60230$@obe.tv> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from hygieia.santi-shop.eu ([78.46.175.2]:49158 "EHLO hygieia.santi-shop.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751766AbaERSng convert rfc822-to-8bit (ORCPT ); Sun, 18 May 2014 14:43:36 -0400 In-Reply-To: <032001cf7156$31a75610$94f60230$@obe.tv> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Kieran Kunhya Cc: linux-input@vger.kernel.org Hi Kieran, On Fri, 16 May 2014 "Kieran Kunhya" wrote: > As requested I forward my bug report to the list: >=20 > From time to time on an ASRock IMB-181D motherboard this device fails= to be > added.=C2=A0 > It seems to work reliably when using Windows 7.=C2=A0 > The errors in dmesg vary but usually take the form:=C2=A0 > [=C2=A0 5.328040] usb 3-7: string descriptor 0 read error: -71=C2=A0 > (snip)=C2=A0 > [=C2=A0 10.333605] usbhid 3-7:1.0: can't add hid device: -71=C2=A0 > [=C2=A0 10.333639] usbhid: probe of 3-7:1.0 failed with error -71=C2=A0 > I can provide a PicoLCD unit if necessary and possibly also fund a > fix/workaround. >=20 > More information is available here: > https://bugzilla.kernel.org/show_bug.cgi?id=3D76341 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 =3D red J4, pin 2 =3D white J4, pin 3 =3D green J4, pin 4 =3D black J4, pin 5 =3D n/a I successfully tried on: - Gigabyte mainboard (GA-A75M-UD2H) (USB2 & USB3 ports) [3.15-rc5, 64bi= t] - 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 Pi= coLCD? Thanks, Bruno -- To unsubscribe from this list: send the line "unsubscribe linux-input" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html