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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello.

On 10-06-2012 4:45, Namjae Jeon wrote:

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

Signed-off-by: Namjae Jeon<namjae.jeon@xxxxxxxxxxx>
Signed-off-by: Pankaj Kumar<pankaj.km@xxxxxxxxxxx>
Signed-off-by: Amit Sahrawat<a.sahrawat@xxxxxxxxxxx>
---
   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@xxxxxxxxxxx>
+ * Even though write cache is enabled by default,
+ * SCSI driver assume that cache is not enabled
+ * which in turn might lead loss of data
                                ^ to the

+ * 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@xxxxxxxxxxxxx>   */
   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@xxxxxxxxxxx>
+ * Even though write cache is enabled by default,
+ * SCSI driver assume that cache is not enabled
+ * which in turn might lead loss of data
                                ^ to the
to the ? Sorry, I don't understand what you want to change.
like this ? "Even though write cache is enabled by default, SCSI
driver assume that cache is not enabled and it in turn might lead the
loss of data. "

   Lead to the loss of data.

WBR, Sergei
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux