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    Subject[PATCH 4.12 01/43] usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard
    Date
    4.12-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Kai-Heng Feng <kai.heng.feng@canonical.com>

    commit de3af5bf259d7a0bfaac70441c8568ab5998d80c upstream.

    Corsair Strafe RGB keyboard has trouble to initialize:

    [ 1.679455] usb 3-6: new full-speed USB device number 4 using xhci_hcd
    [ 6.871136] usb 3-6: unable to read config index 0 descriptor/all
    [ 6.871138] usb 3-6: can't read configurations, error -110
    [ 6.991019] usb 3-6: new full-speed USB device number 5 using xhci_hcd
    [ 12.246642] usb 3-6: unable to read config index 0 descriptor/all
    [ 12.246644] usb 3-6: can't read configurations, error -110
    [ 12.366555] usb 3-6: new full-speed USB device number 6 using xhci_hcd
    [ 17.622145] usb 3-6: unable to read config index 0 descriptor/all
    [ 17.622147] usb 3-6: can't read configurations, error -110
    [ 17.742093] usb 3-6: new full-speed USB device number 7 using xhci_hcd
    [ 22.997715] usb 3-6: unable to read config index 0 descriptor/all
    [ 22.997716] usb 3-6: can't read configurations, error -110

    Although it may work after several times unpluging/pluging:

    [ 68.195240] usb 3-6: new full-speed USB device number 11 using xhci_hcd
    [ 68.337459] usb 3-6: New USB device found, idVendor=1b1c, idProduct=1b20
    [ 68.337463] usb 3-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
    [ 68.337466] usb 3-6: Product: Corsair STRAFE RGB Gaming Keyboard
    [ 68.337468] usb 3-6: Manufacturer: Corsair
    [ 68.337470] usb 3-6: SerialNumber: 0F013021AEB8046755A93ED3F5001941

    Tried three quirks: USB_QUIRK_DELAY_INIT, USB_QUIRK_NO_LPM and
    USB_QUIRK_DEVICE_QUALIFIER, user confirmed that USB_QUIRK_DELAY_INIT alone
    can workaround this issue. Hence add the quirk for Corsair Strafe RGB.

    BugLink: https://bugs.launchpad.net/bugs/1678477
    Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/usb/core/quirks.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/drivers/usb/core/quirks.c
    +++ b/drivers/usb/core/quirks.c
    @@ -217,6 +217,9 @@ static const struct usb_device_id usb_qu
    { USB_DEVICE(0x1a0a, 0x0200), .driver_info =
    USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

    + /* Corsair Strafe RGB */
    + { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
    +
    /* Acer C120 LED Projector */
    { USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },


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