On Thu, 2005-06-30 at 16:17 -0400, Allison wrote:
The deal is that SASI is almost SCSI.. the differences
are very
small at the hardware level (interface). However the protocal and
instruction set of the SASI bridge controllers is different from
SCSI.
Yep, they're close but not quite. Not sure if SASI supported ten-byte
commands either (probably not).
To further muddy the waters, there seems to have been a time where SCSI
was replacing SASI, but the SCSI Common Command Set wasn't yet ratified
- so things existed that were for all intents and purposes SCSI, but
left out a few commands here and there (some of the OMTI tape
controllers I seem to remember are like this).
Hence the reason I'd quite like a simple paralle-port type interface
than going the internal ISA card route as I expect I'd find there are
always going to be a few exceptions to the norm here and there that'll
need to be worked around - and it'd be easier to do all the driving in
user-land on a PC than messing around with hacking device drivers at any
kind of OS level...
cheers
Jules