linux-kernel - [PATCH 3.4 154/176] Bluetooth: Ignore isochronous endpoints for Intel USB bootloader

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Date:	Thu,  9 Apr 2015 16:46:42 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Marcel Holtmann <marcel@...tmann.org>,
	Johan Hedberg <johan.hedberg@...el.com>,
	Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 154/176] Bluetooth: Ignore isochronous endpoints for Intel USB bootloader

From: Marcel Holtmann <marcel@...tmann.org>

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

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


commit d92f2df0565ea04101d6ac04bdc10feeb1d93c94 upstream.

The isochronous endpoints are not valid when the Intel Bluetooth
controller boots up in bootloader mode. So just mark these endpoints
as broken and then they will not be configured.

Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@...el.com>
Signed-off-by: Zefan Li <lizefan@...wei.com>
---
 drivers/bluetooth/btusb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 50a51be..7fcd39c 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -121,7 +121,8 @@ static struct usb_device_id btusb_table[] = {
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 
 	/* Intel Bluetooth USB Bootloader (RAM module) */
-	{ USB_DEVICE(0x8087, 0x0a5a), .driver_info = BTUSB_INTEL_BOOT },
+	{ USB_DEVICE(0x8087, 0x0a5a),
+	  .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
 
 	{ }	/* Terminating entry */
 };
-- 
1.9.1

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