[sane-devel] hp 2300c

bertrik@zonnet.nl bertrik@zonnet.nl
Fri, 4 Jul 2003 12:21:36 +0200

Citeren gnawa <gnawa@libero.it>:

<hp2300c log fragment>

The log you sent looks similar to what is used in some other scanners
(although the fragment is a bit too small to make a definitive conclusion).

It looks like the scanner uses a kind of parallel-over-USB protocol,
that is also used for the HP3300, HP3400 and HP4300.
Each read or write to a scanner register takes 5 USB transfers.

There are already some tools to simplify the logs, allowing you to
concentrate on the essentials:
* modified USB snoopy that does not log the contents of the bulk
transfers (logs get enormously big otherwise, or miss parts)
* perl-script to further simplify the log and make it more readable
* some example code.

Can you post an URL to the full log, so I can check if the protocol
is really similar?

Kind regards,
Bertrik Sikken

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