I don't know if this will help you or not, but I did something similar for the Canon 630u. For the 630u, all commands were sent as USB Control Messages, with the scanner register address in one message and the value in the next. Scan data was sent using USB Bulk messages. If this matches what you're seeing, I can dig up my notes and log parsing scripts for you.
-----Original Message----- From: Phil Whineray [mailto:p...@slightly-cracked.com] Sent: Wednesday, May 14, 2003 2:48 PM To: norbert lataille Cc: sane-de...@www.mostang.com Subject: Re: [sane-devel] Progress on CanoScan D1250U2 > This is great, despite I don't know if we are far enough for parallel > tasking right now. Anyway, do you have a DSL line (and are you ready to > receive huge transaction logs) ? Basically I am: > - reversing the windows TWAIN DLL > - getting USB logs from windows scans > - creating perl scripts to parse/rewrite/extract useful information from > the logs (and go back and forth with the windows disassembly) > - producing a libusb executable which produces scans Hi I have 512Kb downstream, but depending on how much disk space we're talking about, that may be more of an issue. I've about 15GB free, with a 40GB disk currently sitting on the side if needed. My firewall is set up to allow through ssh, so I can set up to allow you to push logs if you want, or I can pull them. What are you using for the disassembly? Is there much useful information left or are you stuck with the horror of manually inferring structure from the code directly? Phil
