I recently came into an Apple Color OneScanner for $20 at the local
surplus store. To my joy, there was a backend for it in the SANE package.
However, I noticed the driver has not been worked on for some time and its
most recent developer only had an Apple Scanner to work with.
I have been experimenting with the backend and found (and subsequently
corrected) a logic flaw which did not flush the buffer after the scan had
completed. The scanner says it wasn't in a blocked condition, yet there
was data still in its buffer waiting to be transferred to the host
computer. I added a check for still-available data failing the check for
a blocked condition as another condition to transfer data from the
scanner. I can provide a patch for this (it only affects one line of
code).
In the meantime, I have since obtained and printed Apple's programming
specs for these scanners. They have helped enormously thus far in
tracking this particular bug down.
Has anyone been hacking this backend lately? Judging by the traffic on
the list in past months, apparently not much has been said about it in
recent times (at least in the Subject: lines).
If any of the people who have worked on this backend are on this list, I
would certainly like to hear from you, especially the poor soul who has
the Apple Scanner, but not either OneScanner (I got one now, I'll be your
guinea pig. :) ).
There are some other glitches, but right now, getting that last bit of
data out of the scanner was my priority before I could go on to Bigger and
Better Things(R).
I look forward to hearing from you! :)
--Ian.
-----
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