Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751369Ab3J2Me0 (ORCPT ); Tue, 29 Oct 2013 08:34:26 -0400 Received: from mail-oa0-f46.google.com ([209.85.219.46]:37094 "EHLO mail-oa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753183Ab3J2Mdk (ORCPT ); Tue, 29 Oct 2013 08:33:40 -0400 MIME-Version: 1.0 In-Reply-To: <20131028150250.755b4cc8@voldemort.scrye.com> References: <20131028150250.755b4cc8@voldemort.scrye.com> Date: Tue, 29 Oct 2013 08:33:39 -0400 X-Google-Sender-Auth: SPRccFxQ9S8bzs4MugcaqxHDbTI Message-ID: Subject: Re: ELAN Touchscreen regression in recent 3.12 rc's? (USB) From: Josh Boyer To: Kevin Fenzi Cc: "Linux-Kernel@Vger. Kernel. Org" , AceLan Kao , Jiri Kosina Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3484 Lines: 67 On Mon, Oct 28, 2013 at 5:02 PM, Kevin Fenzi wrote: > Greetings. > > I have a lenovo yoga 2 pro.. it has a ELAN Touchscreen. > > In 3.12rc5 it was detected and works. > in 3.12rc6 it was detected and works. > > Sometime after the rc6 timeframe it stopped working. It doesn't work with > rc7. > > In dmesg I get: > > [ 159.519663] usb 2-7: New USB device found, idVendor=04f3, idProduct=016f > [ 159.519681] usb 2-7: New USB device strings: Mfr=4, Product=14, SerialNumber=0 > [ 159.519683] usb 2-7: Product: Touchscreen > [ 159.519685] usb 2-7: Manufacturer: ELAN > [ 159.519901] usb 2-7: ep 0x2 - rounding interval to 64 microframes, ep desc says 80 microframes > [ 159.528027] input: ELAN Touchscreen as /devices/pci0000:00/0000:00:14.0/usb2/2-7/2-7:1.0/input/input20 > [ 159.528544] hid-multitouch 0003:04F3:016F.000A: input,hiddev0,hidraw1: USB HID v1.10 Device [ELAN Touchscreen] on usb-0000:00:14.0-7/input0 > [ 161.601423] usb 2-7: USB disconnect, device number 71 > [ 161.896828] usb 2-7: new full-speed USB device number 72 using xhci_hcd > [ 163.991296] usb 2-7: unable to read config index 0 descriptor/start: -71 > [ 163.991301] usb 2-7: can't read configurations, error -71 > [ 164.143686] usb 2-7: new full-speed USB device number 73 using xhci_hcd > [ 166.239273] usb 2-7: unable to read config index 0 descriptor/start: -71 > [ 166.239278] usb 2-7: can't read configurations, error -71 > [ 166.392576] usb 2-7: new full-speed USB device number 74 using xhci_hcd > [ 168.487051] usb 2-7: unable to read config index 0 descriptor/start: -71 > [ 168.487058] usb 2-7: can't read configurations, error -71 > [ 168.640308] usb 2-7: new full-speed USB device number 75 using xhci_hcd > [ 170.734850] usb 2-7: unable to read config index 0 descriptor/start: -71 > [ 170.734856] usb 2-7: can't read configurations, error -71 > [ 170.734927] hub 2-0:1.0: unable to enumerate USB device on port 7 > [ 171.022134] usb 2-7: new full-speed USB device number 76 using xhci_hcd > [ 173.116744] usb 2-7: unable to read config index 0 descriptor/start: -71 > [ 173.116750] usb 2-7: can't read configurations, error -71 > [ 173.269840] usb 2-7: new full-speed USB device number 77 using xhci_hcd > [ 173.282520] usb 2-7: New USB device found, idVendor=04f3, idProduct=016f > [ 173.282526] usb 2-7: New USB device strings: Mfr=4, Product=14, SerialNumber=0 > [ 173.282528] usb 2-7: Product: Touchscreen > [ 173.282530] usb 2-7: Manufacturer: ELAN > [ 173.282782] usb 2-7: ep 0x2 - rounding interval to 64 microframes, ep desc says 80 microframes > [ 173.290920] input: ELAN Touchscreen > as /devices/pci0000:00/0000:00:14.0/usb2/2-7/2-7:1.0/input/input21 > > So it seems to be bouncing in and out (but never long enough to actually work). > > Could be a regression in xhci_hcd? Hm. There were no changes in drivers/usb from -rc6 to -rc7, so if -rc6 works then I doubt it's xhci_hcd. There were two touchscreen quirks added between those two rcs though, so perhaps one of those broke this. 684524d35fe8d13be1f2649633e43bd02c96c695 HID: usbhid: quirk for SiS Touchscreen 8171a67d587a09e14a4949a81e070345fedcf410 HID: usbhid: quirk for Synaptics Large Touchccreen CC'd AceLan and Jiri. josh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/