[PATCH v3 3/3] usb: storage: update usb devices for write cache quirk in quirk list.

Namjae Jeon
2012-06-10T01:31:33Z

Update information of Seagate Portable HDD and WD My Passport HDD in
quirk list.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
---
drivers/usb/storage/unusual_devs.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 1719886..64f0369 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1267,6 +1267,18 @@ UNUSUAL_DEV( 0x0af0, 0xd357, 0x0000, 0x0000,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
0 ),

+/* Reported by Namjae Jeon <namjae.jeon@samsung.com>
+ * Even though write cache is enabled by default,
+ * SCSI driver assume that cache is not enabled
+ * which in turn might lead to the loss of data
+ * since data still will be in cache.
+ * So this entry is needed for assuming that cache is enabled.
+ */
+UNUSUAL_DEV(0x0bc2, 0x2300, 0x0000, 0x9999,
+ "Seagate",
+ "Portable HDD",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_WRITE_CACHE),
+
/* Reported by Ben Efros <ben@pc-doctor.com> */
UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
"Seagate",
@@ -1468,6 +1480,18 @@ UNUSUAL_DEV( 0x1058, 0x0704, 0x0000, 0x9999,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_SANE_SENSE),

+/* Reported by Namjae Jeon <namjae.jeon@samsung.com>
+ * Even though write cache is enabled by default,
+ * SCSI driver assume that cache is not enabled
+ * which in turn might lead to the loss of data
+ * since data still will be in cache.
+ * So this entry is needed for assuming that cache is enabled.
+ */
+UNUSUAL_DEV(0x1058, 0x070a, 0x0000, 0x9999,
+ "Western Digital",
+ "My Passport HDD",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_WRITE_CACHE),
+
/* Reported by Fabio Venturi <f.venturi@tdnet.it>
* The device reports a vendor-specific bDeviceClass.
*/
--
1.7.9.5