On Wednesday 18 July 2007 13:37:49 m. allan noah wrote: > On 7/16/07, Miguel <miguelrvs at gmail.com> wrote: > > Hello, > > Currently I'm trying to modify the avision backend to support the > > kodak i1320 (duplex) using the sane-backends 1.0.18 > > but I have a problem, the i1320 uses 2 usb bulk-in endpoints. I?ve > > modified sanei_usb.c to include an endpoint array (both in and out), > > but i don?t know if it?s correct place to do that. > > It appears that one endpoint outputs the front scanning unit, and the > > other outputs the backone. > > I've already made the scanner output an scanned sheet using the log > > from usbsnoop from a windows machine, and have identified and > > isolated the transactions that cold and hot inicialize the scanner, > > and the section that makes it to scan. > > Also I would apreciate some help from anyone who knows about the image > > format this scanner outputs, it seems a raw image, and how to convert > > it to a usable format (desirably tiff). It outputs the same 20MB of > > data (each side), regardless of the control panel settings (group 4 vs > > raw). > > > > i had an i1220 at the office for a demo and noticed the dual read > endpoints as well IIRC. > > in the case of the front-end buttons, i would not be surprised to find > that they do not change the scanner settings at all, but rather, the > driver polls the setting of the buttons, and then changes the scan > parameters sent back to the scanner. > > for the data, it probably is raw, but sane frontends can turn that > into a tiff or pnm (and maybe more) for you. all you have to do is > follow the sane spec for providing the data to the frontend.
Is this scanner in any means simillar to the protocol used in Avision scanners? I guess the scanner always delivers the whole width until paper out and needs autocrop and de-skew to be useful? Patchs to the avision.* files welcome. Yours, -- Ren? Rebe - ExactCODE GmbH - Europe, Germany, Berlin Gesch?ftsf?hrer: Susanne Klaus, Ren? Rebe Sitz: Berlin, Amtsgericht Charlottenburg HRB 105 123 B USt-IdNr.: DE251602478 http://exactcode.de | http://t2-project.org | http://rene.rebe.name
