USB Storage: indistinguishable devices with broken and unbroken firmware
there's a USB mass storage device which exists in two version. One
reports the correct size and the other does not. Apart from that they
are identical and cannot be told apart. Here's a heuristic based on the
empirical finding that drives have even sizes.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 2ae76fe..1b792b9 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -46,7 +46,9 @@
US_FLAG(MAX_SECTORS_64, 0x00000400) \
/* Sets max_sectors to 64 */ \
US_FLAG(IGNORE_DEVICE, 0x00000800) \
- /* Don't claim device */
+ /* Don't claim device */ \
+ US_FLAG(CAPACITY_HEURISTICS, 0x00001000) \
+ /* sometimes sizes is too big */
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };