Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

usb-storage: ignore ZTE MF 823 card reader in mode 0x1225

Browse source 
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: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Oliver Neukum 2015-07-06 13:12:32 +02:00 committed by Zefan Li
parent c8362712a9
commit c5b2efe0f0
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/usb/storage/unusual_devs.h
View file

@ -2019,6 +2019,18 @@ 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).
*/