From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Adrien=20Verg=C3=A9?= Subject: [PATCH v3 1/2] USB: quirks: Fix another ELAN touchscreen Date: Tue, 24 Nov 2015 14:49:07 +0100 Message-ID: <1448372948-8861-2-git-send-email-adrienverge@gmail.com> References: <1448165164-11398-1-git-send-email-adrienverge@gmail.com> <1448372948-8861-1-git-send-email-adrienverge@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1448372948-8861-1-git-send-email-adrienverge@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Oliver Neukum Cc: Jiri Kosina , Greg Kroah-Hartman , Logan Gunthorpe , Hans de Goede , Vincent Palatin , =?UTF-8?q?Adrien=20Verg=C3=A9?= , Macpaul Lin , Adel Gadllah , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org List-Id: linux-input@vger.kernel.org Like other buggy models that had their fixes [1], the touchscreen with id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier quirk. Otherwise, it fails to respond, blocks the boot for a random amount of time and pollutes dmesg with: [ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_= hcd [ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start:= -71 [ 2889.502005] usb 1-5: can't read configurations, error -71 [ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_= hcd [ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start:= -71 [ 2891.783443] usb 1-5: can't read configurations, error -71 [1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec. Tested-by: Adrien Verg=C3=A9 Signed-off-by: Adrien Verg=C3=A9 --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index f5a3819..fcd6ac0 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = =3D { { USB_DEVICE(0x04f3, 0x016f), .driver_info =3D USB_QUIRK_DEVICE_QUALIFIER }, =20 + { USB_DEVICE(0x04f3, 0x21b8), .driver_info =3D + USB_QUIRK_DEVICE_QUALIFIER }, + /* Roland SC-8820 */ { USB_DEVICE(0x0582, 0x0007), .driver_info =3D USB_QUIRK_RESET_RESUME= }, =20 --=20 2.4.3