linux-kernel - [PATCH 2/3] USB option driver K3765/K4505 avoid CDC

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Date:	Wed, 17 Aug 2011 00:20:03 +0100
From:	Andrew Bird <ajb@...eresystems.co.uk>
To:	gregkh@...e.de
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Andrew Bird <ajb@...eresystems.co.uk>
Subject: [PATCH 2/3] USB option driver K3765/K4505 avoid CDC_DATA interface

Currently the Option driver avoids binding interface 1 on Huawei K3765
and K4505 broadband modems as it should be handled by the cdc_ether
driver instead. This patch ensures we don't bind the interface 2
on those devices as that is CDC_DATA.

Signed-off-by: Andrew Bird <ajb@...eresystems.co.uk>
---
 drivers/usb/serial/option.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 6e04222..53911aa 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1140,7 +1140,8 @@ static int option_probe(struct usb_serial *serial,
 	if (serial->dev->descriptor.idVendor == HUAWEI_VENDOR_ID &&
 		(serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K3765 ||
 			serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K4505) &&
-		serial->interface->cur_altsetting->desc.bInterfaceNumber == 1)
+		(serial->interface->cur_altsetting->desc.bInterfaceNumber == 1 ||
+			serial->interface->cur_altsetting->desc.bInterfaceNumber == 2))
 		return -ENODEV;
 
 	/* Don't bind network interface on Samsung GT-B3730, it is handled by a separate module */
-- 
1.7.3.2

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