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authorPascal Terjan <pterjan@mandriva.com>2009-04-16 19:00:45 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-15 21:44:41 -0700
commitc5be1b52d9ea6ede4931691bf9f0bd454515aa52 (patch)
tree7094af3b339a6c3babc039f1984250902d386f1f /drivers/usb/storage
parentcc71329b3b89b4a5be849b617f2c4f151f0b9213 (diff)
USB: Ignore storage device in modem mode on DWN-652
D-Link DWN-652 in Modem mode exposes 3 interfaces - First one is the USB storage one - Second one is for both control and connection - Third one is unknown This patch avoids usb-storage trying to switch again when already in modem mode, and exposes only 2 ttyUSB instead of 3 by not attaching to the storage interface Signed-off-by: Pascal Terjan <pterjan@mandriva.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/storage')
-rw-r--r--drivers/usb/storage/option_ms.c3
-rw-r--r--drivers/usb/storage/unusual_devs.h2
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/storage/option_ms.c b/drivers/usb/storage/option_ms.c
index 353f922939a..126ea3424c0 100644
--- a/drivers/usb/storage/option_ms.c
+++ b/drivers/usb/storage/option_ms.c
@@ -94,7 +94,8 @@ int option_ms_init(struct us_data *us)
*/
if (udev->descriptor.bDeviceClass != 0 ||
udev->descriptor.bDeviceSubClass != 0 ||
- udev->descriptor.bDeviceProtocol != 0)
+ udev->descriptor.bDeviceProtocol != 0 ||
+ udev->actconfig->desc.bNumInterfaces == 3)
return USB_STOR_TRANSPORT_GOOD;
US_DEBUGP("Option MS: option_ms_init called\n");
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 4b8b69045fe..1b9c5dd0fb2 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1385,7 +1385,7 @@ UNUSUAL_DEV( 0x10d6, 0x2200, 0x0100, 0x0100,
UNUSUAL_DEV( 0x1186, 0x3e04, 0x0000, 0x0000,
"D-Link",
"USB Mass Storage",
- US_SC_DEVICE, US_PR_DEVICE, option_ms_init, 0),
+ US_SC_DEVICE, US_PR_DEVICE, option_ms_init, US_FL_IGNORE_DEVICE),
/* Reported by Kevin Lloyd <linux@sierrawireless.com>
* Entry is needed for the initializer function override,