[PATCH] usb-storage: Add compatibility quirk flags for iODD 2531/2541
From: James Buren <hidden>
Date: 2021-10-14 02:03:05
Subsystem:
the rest, usb mass storage driver, usb subsystem · Maintainers:
Linus Torvalds, Alan Stern, Greg Kroah-Hartman
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. Signed-off-by: James Buren <redacted> --- 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@braewoods.net> + * 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@ucw.cz> reported that the extra US_FL_SINGLE_LUN
--
2.25.1