In the old days, ancient scsi devices understood 6-byte commands
and more recent ones also understood 10-byte commands.
Thus, we had a "ten" flag indicating that 10-byte commands worked.

These days, especially for usb-storage devices, the opposite
sometimes holds - 10-byte commands are supported, but 6-byte commands
are not.

The patch below changes the field ten into the pair of fields
use_10_for_rw, use_10_for_ms set initially when the driver
thinks these are supported. Ifthe device returns ILLEGAL_REQUEST
they are cleared.

This patch obsoletes a large amount of code in usb-storage,
and not only that, once the subsequent patch removes all this
usb-storage code many devices will work that hang today.


Andries