linux-kernel - [PATCH 4.4 38/51] USB: Add USB_QUIRK_DELAY_CTRL

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Message-Id: <20190115154852.794599777@linuxfoundation.org>
Date:   Tue, 15 Jan 2019 17:35:34 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jack Stocker <jackstocker.93@...il.com>
Subject: [PATCH 4.4 38/51] USB: Add USB_QUIRK_DELAY_CTRL_MSG quirk for Corsair K70 RGB

4.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Jack Stocker <jackstocker.93@...il.com>

commit 3483254b89438e60f719937376c5e0ce2bc46761 upstream.

To match the Corsair Strafe RGB, the Corsair K70 RGB also requires
USB_QUIRK_DELAY_CTRL_MSG to completely resolve boot connection issues
discussed here: https://github.com/ckb-next/ckb-next/issues/42.
Otherwise roughly 1 in 10 boots the keyboard will fail to be detected.

Patch that applied delay control quirk for Corsair Strafe RGB:
cb88a0588717 ("usb: quirks: add control message delay for 1b1c:1b20")

Previous K70 RGB patch to add delay-init quirk:
7a1646d92257 ("Add delay-init quirk for Corsair K70 RGB keyboards")

Signed-off-by: Jack Stocker <jackstocker.93@...il.com>
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/core/quirks.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -240,7 +240,8 @@ static const struct usb_device_id usb_qu
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
 	/* Corsair K70 RGB */
-	{ USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT },
+	{ USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT |
+	  USB_QUIRK_DELAY_CTRL_MSG },
 
 	/* Corsair Strafe */
 	{ USB_DEVICE(0x1b1c, 0x1b15), .driver_info = USB_QUIRK_DELAY_INIT |