linux-kernel - [PATCH 3.16 123/204] usb: quirks: add quirk for WORLDE MINI MIDI keyboard

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Message-ID: <lsq.1514480744.931098777@decadent.org.uk>
Date:   Thu, 28 Dec 2017 17:05:44 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Alan Stern" <stern@...land.harvard.edu>,
        "Felipe Balbi" <felipe.balbi@...ux.intel.com>,
        "Владимир Мартьянов" 
        <vilgeforce@...il.com>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Subject: [PATCH 3.16 123/204] usb: quirks: add quirk for WORLDE MINI MIDI
 keyboard

3.16.52-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Felipe Balbi <felipe.balbi@...ux.intel.com>

commit 2811501e6d8f5747d08f8e25b9ecf472d0dc4c7d upstream.

This keyboard doesn't implement Get String descriptors properly even
though string indexes are valid. What happens is that when requesting
for the String descriptor, the device disconnects and
reconnects. Without this quirk, this loop will continue forever.

Cc: Alan Stern <stern@...land.harvard.edu>
Reported-by: Владимир Мартьянов <vilgeforce@...il.com>
Signed-off-by: Felipe Balbi <felipe.balbi@...ux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/usb/core/quirks.c | 4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -218,6 +218,10 @@ static const struct usb_device_id usb_qu
 	/* Corsair Strafe RGB */
 	{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
 
+	/* MIDI keyboard WORLDE MINI */
+	{ USB_DEVICE(0x1c75, 0x0204), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* Acer C120 LED Projector */
 	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },