linux-kernel - [PATCH] USB: cdc-acm: quirk for Alcatel OT-I650

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Date:	Thu, 28 May 2009 20:33:58 +0400
From:	Kir Kolyshkin <kir@...nvz.org>
To:	linux-usb-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Cc:	Kir Kolyshkin <kir@...nvz.org>
Subject: [PATCH] USB: cdc-acm: quirk for Alcatel OT-I650

This mobile phone fails to work as a modem, failing with:
 cdc_acm: Zero length descriptor references
 cdc_acm: probe of 1-6.1.3:1.1 failed with error -22

Tested to work fine with this patch.

Signed-off-by: Kir Kolyshkin <kir@...nvz.org>
---
 drivers/usb/class/cdc-acm.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 0a69c09..68701c9 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1384,6 +1384,9 @@ static struct usb_device_id acm_ids[] = {
 					   Maybe we should define a new
 					   quirk for this. */
 	},
+	{ USB_DEVICE(0x1bbb, 0x0003), /* Alcatel OT-I650 */
+	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
+	},
 
 	/* control interfaces with various AT-command sets */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
-- 
1.6.0.6

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