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authorOliver Neukum <oneukum@suse.com>2015-07-06 13:12:32 +0200
committerMoyster <oysterized@gmail.com>2016-08-26 19:58:47 +0200
commit20b76223ee686c2eafe4e1fe020c4ca2674b5823 (patch)
tree78fadd51bf9928977206784c5cf4f9536192c23d /drivers
parent98de7f486ccad103a145f58f3d9b758082c2a06a (diff)
usb-storage: ignore ZTE MF 823 card reader in mode 0x1225
commit 5fb2c782f451a4fb9c19c076e2c442839faf0f76 upstream. This device automatically switches itself to another mode (0x1405) unless the specific access pattern of Windows is followed in its initial mode. That makes a dirty unmount of the internal storage devices inevitable if they are mounted. So the card reader of such a device should be ignored, lest an unclean removal become inevitable. This replaces an earlier patch that ignored all LUNs of this device. That patch was overly broad. Signed-off-by: Oliver Neukum <oneukum@suse.com> Reviewed-by: Lars Melin <larsm17@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stefan Guendhoer <stefan@guendhoer.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/storage/unusual_devs.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index b3435868e..47544960f 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2011,6 +2011,18 @@ UNUSUAL_DEV( 0x1908, 0x3335, 0x0200, 0x0200,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_READ_DISC_INFO ),
+/* Reported by Oliver Neukum <oneukum@suse.com>
+ * This device morphes spontaneously into another device if the access
+ * pattern of Windows isn't followed. Thus writable media would be dirty
+ * if the initial instance is used. So the device is limited to its
+ * virtual CD.
+ * And yes, the concept that BCD goes up to 9 is not heeded */
+UNUSUAL_DEV( 0x19d2, 0x1225, 0x0000, 0xffff,
+ "ZTE,Incorporated",
+ "ZTE WCDMA Technologies MSM",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_SINGLE_LUN ),
+
/* Reported by Sven Geggus <sven-usbst@geggus.net>
* This encrypted pen drive returns bogus data for the initial READ(10).
*/