[Linux-usb-users] [PATCH] Add allow_restart usb_storage quirk
This Seagate FreeAgent external USB disk I just purchased seems to need
allow_restart enabled to spin back up; otherwise I just get a pile of
read errors when I try to access it. Add a new unusual flag for devices
needing scsi_device-allow_restart set, and add this Seagate drive to
the unusual devs table.
Signed-off-by: Kyle McMartin [EMAIL PROTECTED]
---
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 1ba19ea..c171140 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -200,6 +200,10 @@ static int slave_configure(struct scsi_device *sdev)
if (us-flags US_FL_NOT_LOCKABLE)
sdev-lockable = 0;
+ /* Some devices need allow_restart to spin back up...
+ if (us-flags US_FL_ALLOW_RESTART)
+ sdev-allow_restart = 1;
+
/* this is to satisfy the compiler, tho I don't think the
* return code is ever checked anywhere. */
return 0;
diff --git a/drivers/usb/storage/unusual_devs.h
b/drivers/usb/storage/unusual_devs.h
index 22ab238..a538aa6 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1574,6 +1574,12 @@ UNUSUAL_DEV( 0xed06, 0x4500, 0x0001, 0x0001,
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_CAPACITY_HEURISTICS),
+/* Reported by Kyle McMartin [EMAIL PROTECTED] */
+UNUSUAL_DEV( 0x0bc2, 0x3000, 0x, 0x,
+ Seagate, FreeAgentDesktop 320,
+ US_SC_SCSI, US_PR_BULK, NULL,
+ US_FL_ALLOW_RESTART),
+
/* Control/Bulk transport for all SubClass values */
USUAL_DEV(US_SC_RBC, US_PR_CB, USB_US_TYPE_STOR),
USUAL_DEV(US_SC_8020, US_PR_CB, USB_US_TYPE_STOR),
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 1b792b9..d01dc72 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -48,7 +48,9 @@
US_FLAG(IGNORE_DEVICE, 0x0800) \
/* Don't claim device */\
US_FLAG(CAPACITY_HEURISTICS,0x1000) \
- /* sometimes sizes is too big */
+ /* sometimes sizes is too big */\
+ US_FLAG(ALLOW_RESTART, 0x2000) \
+ /* needs allow_restart to wake up */
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };
-
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Re: [Linux-usb-users] [PATCH] Add allow_restart usb_storage quirk
This Seagate FreeAgent external USB disk I just purchased seems to need
allow_restart enabled to spin back up; otherwise I just get a pile of
read errors when I try to access it. Add a new unusual flag for devices
needing scsi_device-allow_restart set, and add this Seagate drive to
the unusual devs table.
Signed-off-by: Kyle McMartin [EMAIL PROTECTED]
---
Resent... sigh, that will learn me to hand-edit diff in my mail client.
Fixed dropped */ in the scsiglue.c comment.
Cheers,
Kyle
---
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 1ba19ea..c171140 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -200,6 +200,10 @@ static int slave_configure(struct scsi_device *sdev)
if (us-flags US_FL_NOT_LOCKABLE)
sdev-lockable = 0;
+ /* Some devices need allow_restart to spin back up... */
+ if (us-flags US_FL_ALLOW_RESTART)
+ sdev-allow_restart = 1;
+
/* this is to satisfy the compiler, tho I don't think the
* return code is ever checked anywhere. */
return 0;
diff --git a/drivers/usb/storage/unusual_devs.h
b/drivers/usb/storage/unusual_devs.h
index 22ab238..a538aa6 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1574,6 +1574,12 @@ UNUSUAL_DEV( 0xed06, 0x4500, 0x0001, 0x0001,
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_CAPACITY_HEURISTICS),
+/* Reported by Kyle McMartin [EMAIL PROTECTED] */
+UNUSUAL_DEV( 0x0bc2, 0x3000, 0x, 0x,
+ Seagate, FreeAgentDesktop 320,
+ US_SC_SCSI, US_PR_BULK, NULL,
+ US_FL_ALLOW_RESTART),
+
/* Control/Bulk transport for all SubClass values */
USUAL_DEV(US_SC_RBC, US_PR_CB, USB_US_TYPE_STOR),
USUAL_DEV(US_SC_8020, US_PR_CB, USB_US_TYPE_STOR),
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 1b792b9..d01dc72 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -48,7 +48,9 @@
US_FLAG(IGNORE_DEVICE, 0x0800) \
/* Don't claim device */\
US_FLAG(CAPACITY_HEURISTICS,0x1000) \
- /* sometimes sizes is too big */
+ /* sometimes sizes is too big */\
+ US_FLAG(ALLOW_RESTART, 0x2000) \
+ /* needs allow_restart to wake up */
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };
-
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Re: [Linux-usb-users] [PATCH] Add allow_restart usb_storage quirk
On Tue, 27 Nov 2007, Kyle McMartin wrote: This Seagate FreeAgent external USB disk I just purchased seems to need allow_restart enabled to spin back up; otherwise I just get a pile of read errors when I try to access it. Add a new unusual flag for devices needing scsi_device-allow_restart set, and add this Seagate drive to the unusual devs table. There already is a patch in Greg's USB development tree turning on allow_restart unconditionally for all USB mass-storage devices: http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-03-usb/usb-storage-always-set-the-allow_restart-flag.patch Alan Stern - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
Re: [Linux-usb-users] [PATCH] Add allow_restart usb_storage quirk
On Tue, Nov 27, 2007 at 03:51:00PM -0500, Alan Stern wrote: There already is a patch in Greg's USB development tree turning on allow_restart unconditionally for all USB mass-storage devices: http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-03-usb/usb-storage-always-set-the-allow_restart-flag.patch Ah, I saw it fly by a couple weeks ago, but didn't know it was a candidate for merging (as opposed to using UNUSUAL_DEVS.) and then forgot about it. Great! I'll slurp it into Fedora too. cheers, Kyle - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
