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Red Hat Bugzilla – Attachment 944269 Details for
Bug 1149509
[PATCH] Apply quirk for elan touchscreens
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[patch]
HID-usbhid-enable-always-poll-quirk-for-Elan-Touchsc.patch
0002-USB-quirks-enable-device-qualifier-quirk-for-Elan-To.patch (text/plain), 1.67 KB, created by
Adel Gadllah
on 2014-10-06 14:06:29 UTC
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Description:
HID-usbhid-enable-always-poll-quirk-for-Elan-Touchsc.patch
Filename:
MIME Type:
Creator:
Adel Gadllah
Created:
2014-10-06 14:06:29 UTC
Size:
1.67 KB
patch
obsolete
>From fc752e6311e63d5f316147f9bd1957ca60994b0b Mon Sep 17 00:00:00 2001 >From: Johan Hovold <johan@kernel.org> >Date: Mon, 25 Aug 2014 17:51:27 +0200 >Subject: [PATCH 2/3] USB: quirks: enable device-qualifier quirk for Elan > Touchscreen > >Enable device-qualifier quirk for Elan Touchscreen, which often fails to >handle requests for the device_descriptor. > >Note that the device sometimes do respond properly with a Request Error >(three times as USB core retries), but usually fails to respond at all. >When this happens any further descriptor requests also fails, for >example: > >[ 1528.688934] usb 2-7: new full-speed USB device number 4 using xhci_hcd >[ 1530.945588] usb 2-7: unable to read config index 0 descriptor/start: -71 >[ 1530.945592] usb 2-7: can't read configurations, error -71 > >This has been observed repeating for over a minute before eventual >successful enumeration. > >Reported-by: Drew Von Spreecken <drewvs@gmail.com> >Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> >Signed-off-by: Johan Hovold <johan@kernel.org> >Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> >--- > drivers/usb/core/quirks.c | 4 ++++ > 1 file changed, 4 insertions(+) > >diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c >index 739ee8e..6da75dd 100644 >--- a/drivers/usb/core/quirks.c >+++ b/drivers/usb/core/quirks.c >@@ -93,6 +93,10 @@ static const struct usb_device_id usb_quirk_list[] = { > { USB_DEVICE(0x04e8, 0x6601), .driver_info = > USB_QUIRK_CONFIG_INTF_STRINGS }, > >+ /* Elan Touchscreen */ >+ { USB_DEVICE(0x04f3, 0x0089), .driver_info = >+ USB_QUIRK_DEVICE_QUALIFIER }, >+ > /* Roland SC-8820 */ > { USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME }, > >-- >1.9.3 >
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