USB: storage: Never reset devices that will morph to an old mode
Some devices must be switched to a new mode to fully use them.
A reset would make them revert to the old mode. Therefore a reset
must not be used for error handling with such devices.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 2526f3b..0a555dd 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -19,4 +19,7 @@
/* device can't handle its Configuration or Interface strings */
#define USB_QUIRK_CONFIG_INTF_STRINGS 0x00000008
+/*device will morph if reset, don't use reset for handling errors */
+#define USB_QUIRK_RESET_MORPHS 0x00000010
+
#endif /* __LINUX_USB_QUIRKS_H */