This is a note to let you know that I've just added the patch titled
usb-storage: Add compatibility quirk flags for iODD 2531/2541
to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-next branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will also be merged in the next major kernel release
during the merge window.
If you have any questions about this process, please let me know.
>From 05c8f1b67e67dcd786ae3fe44492bbc617b4bd12 Mon Sep 17 00:00:00 2001
From: James Buren <braewoods+lkml@xxxxxxxxxxxxx>
Date: Wed, 13 Oct 2021 20:55:04 -0500
Subject: usb-storage: Add compatibility quirk flags for iODD 2531/2541
These drive enclosures have firmware bugs that make it impossible to mount
a new virtual ISO image after Linux ejects the old one if the device is
locked by Linux. Windows bypasses this problem by the fact that they do
not lock the device. Add a quirk to disable device locking for these
drive enclosures.
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: James Buren <braewoods+lkml@xxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211014015504.2695089-1-braewoods+lkml@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/storage/unusual_devs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index c6b3fcf90180..29191d33c0e3 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -406,6 +406,16 @@ UNUSUAL_DEV( 0x04b8, 0x0602, 0x0110, 0x0110,
"785EPX Storage",
USB_SC_SCSI, USB_PR_BULK, NULL, US_FL_SINGLE_LUN),
+/*
+ * Reported by James Buren <braewoods+lkml@xxxxxxxxxxxxx>
+ * Virtual ISOs cannot be remounted if ejected while the device is locked
+ * Disable locking to mimic Windows behavior that bypasses the issue
+ */
+UNUSUAL_DEV( 0x04c5, 0x2028, 0x0001, 0x0001,
+ "iODD",
+ "2531/2541",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE),
+
/*
* Not sure who reported this originally but
* Pavel Machek <pavel@xxxxxx> reported that the extra US_FL_SINGLE_LUN
--
2.33.1
