10.3: Enable the Snapscan 1236s SCSI scanner

Dec 19, '03 11:53:00AM

Contributed by: dave2003

My Agfa Snapscan 1236s scanner with SCSI connection via an Adaptec 2906 worked in the later (but not the earlier) versions of Jaguar (up to 10.2.8), using Agfa's Scanwise X application ( version 2.1fc2 - the final version for OS X ). After installing Panther the scanner didn't appear in System Profiler and Scanwise X failed to detect it.

Rather than finally abandon the scanner I investigated a bit further starting with the one clue in 10.2.8 where Apple System Profiler correctly reported the scanner, but as an 'IOSCSIParallelDevice' off the Bus. I noticed that Panther had replaced the IOSCSIParallelFamily.kext in System/Library/Extensions with a new version (version 1.3.0 in Panther, version 1.2.4 in 10.2.8).

Suspecting that this might have something to do with the problem I replaced the installed 1.3.0 version with a copy of the 1.2.4 version and rebooted. Although the scanner is not reported in System Profiler it is now recognised by Scanwise and I can scan quite happily as before with no obvious system problems encountered so far. Reverting to this earlier version of IOSCSIParallelFamily.kext seems to restore this SCSI scanner's functionality in Panther.

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