full size. Define a SHORT_INQUIRY_LENGTH for use during initial
probing (covers the size used previously). Define some SPC-2 related
fields (and define the revision code for SPC-2) which includes some
further SPI-3 defines. Don't go all the way (256 bytes) for the structure-
stop 4 bytes short- because we haven't auditted the source base to find
any u_int8_t potential overflow issues. Add RBC (single byte device)
and OCR (Optical Character Reader) device type codes.
Approved by JKH.
Reviewed by: gibbs@freebsd.org, ken@freebsd.org