Media changers attached to CD-ROM devices currently prohibited

Ralph Weber -- VMS -- ZKO3-4/U14 weber at
Tue Nov 22 17:13:20 PST 1994

I have been working through the SPC numeric listing of opcodes.
During that process, I have discovered that READ ELEMENT STATUS and
SET CD-ROM SPEED share the B8h opcode.  Since READ ELEMENT STATUS is
a necessary part of an attached medium changer implementation, this
shared usage of opcodes means that CD-ROM devices cannot have attached
medium changers.

This seems to prevent a valid use of the attached medium changer
model.  Does anybody care?



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