3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -210,6 +210,9 @@ 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 },