[sane-devel] Canon FS4000 support

Ulrich Deiters ukd@xenon.pc.Uni-Koeln.DE
Tue, 1 Jun 2004 09:15:54 +0200 (METDST)

I once had an opportunity to look at an SCSI protocol of
a FS4000. The protocol differs significantly from those
of the SCSI flatbed scanners and the older film scanners.
Moreover, there appear several SCSI commands which my
handbook lists as "proprietary/undocumented". Reverse
engineering will therefore require much experimental

And who knows - perhaps Canon built some unconventional
commands into the scanner ("eject light bulb", "burn
the slide") to discourage people like us? :-)


Ulrich Deiters