# Reverse Engineering

Fredrick P. Eisele Sr. (feisele@ameritech.net)
Sun, 24 May 1998 04:28:52 -0400

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I have a scanner (for fingerprints) which connects
to the parallel port. I want to develop a SANE
interface for this beast but the company has not
been forthcoming with the specifications.
What is the best way to proceed with reverse
engineering?

The device can be run under NT and I see no evidence
of a driver (no *.sys file). How similar are the
NT and Linux lp drivers?
Should/can I put some kind of sniffer on the port?

Is there documentation on how to proceed with a
reverse engineering job?

Thanks,
Fred

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