summaryrefslogtreecommitdiff
path: root/include/linux/usb_usual.h
diff options
context:
space:
mode:
authorOliver Neukum <oneukum@suse.de>2013-10-14 17:24:55 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-10-17 00:32:04 +0400
commit32c37fc30c52508711ea6a108cfd5855b8a07176 (patch)
tree0e27849089be2e0f12bbcab665062e2f7d2454a0 /include/linux/usb_usual.h
parentfd8573f5828873343903215f203f14dc82de397c (diff)
downloadlinux-32c37fc30c52508711ea6a108cfd5855b8a07176.tar.xz
usb-storage: add quirk for mandatory READ_CAPACITY_16
Some USB drive enclosures do not correctly report an overflow condition if they hold a drive with a capacity over 2TB and are confronted with a READ_CAPACITY_10. They answer with their capacity modulo 2TB. The generic layer cannot cope with that. It must be told to use READ_CAPACITY_16 from the beginning. Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb_usual.h')
-rw-r--r--include/linux/usb_usual.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index bf99cd01be20..630356866030 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -66,7 +66,9 @@
US_FLAG(INITIAL_READ10, 0x00100000) \
/* Initial READ(10) (and others) must be retried */ \
US_FLAG(WRITE_CACHE, 0x00200000) \
- /* Write Cache status is not available */
+ /* Write Cache status is not available */ \
+ US_FLAG(NEEDS_CAP16, 0x00400000)
+ /* cannot handle READ_CAPACITY_10 */
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };