At first I thought there is some trouble with the driver since my
scanner (ScanExpress 12000SP) doesn't work with the mustek
backend. But yours should work.
But now I've made some progress, it seems that the scanner's
SCSI implementation is *very* crippled, even after totally weird
commands the scanner never sends any error code at all.
Only INQUIRY worked first, but according to David's hint I am
trying SCSI-II commands, and --- what a surprise --- something
happens. After SET_WINDOW and SCAN the slide moves slightly
forward, and back to the home position after closing the device.
And READ produces some noise like moving the slide back and forth
a few scanlines, perhaps continuous backtracking because the
scanner can't get rid of the data. Unfortunately, the SCSI-II
standard isn't very precise concerning how to specify the
amount of data to be transferred. I don't know what the 'blocksize'
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