[PATCH 0/2]error handling for mode switching devices

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This patchset handles a problem with resetting devices that
use mode switching. Some revert to their initial mode, if they are reset.
For such devices, reset cannot be used for error handling.
As some devices have buit in card readers for now only the
storage driver is affected. Because user space switches the mode
it should also tell the kernel that devices are affected.
Devices that are switched in kernel would need to be added
to the list of quirky devices in usbcore.

- a quirk is introduced
- a sysfs attribute for this quirk is exported
- usb-storage is told to fall back to the class specific reset

	Regards
		Oliver
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