Hi Nico and Dennis, I replaced the 2 files (pixma_imageclass.c & pixma_mp750.c) with the new ones you provided. Attached is the new log of "scanimage -T" after recompile/reinstall.
I sent you a large file (4MB, SnoopyPro capture of MF Toolbox) in my previous e-mail. Thanks, Jerry On Thu, May 14, 2009 at 2:30 PM, Nicolas Martin <nicolas0martin at gmail.com> wrote: > Hmm, this MF5770 holds a CCD device, like the MP750, that's why it > requires a calibration sequence. > > Yes, a first step would be to try with the current MP750 backend file, > and see how it goes. > > Jerry: > > Could you test the attached 2 files, simply replace the ones in your > current git tree, in subdir sane-backends/backend with those 2 new ones > in the archive, and recompile/reinstall > In this case, take a logtrace as you did previously, and send it back. > > Also, as Dennis suggested, could you take a longer USB snoop to get the > whole scan sequence ? > > Nicolas > > > > Le mercredi 13 mai 2009 ? 18:16 -0700, Dennis Lou a ?crit : >> --- On Wed, 5/13/09, Nicolas Martin <nicolas0martin at gmail.com> wrote: >> > Dunno if you still own your ImageClass device, but as you >> > were more >> > expert than me on this part of the pixma backend, I >> > naturally dare >> > proposing you, if you can, to have a quick look at what's >> > going on >> > here. >> >> Yup, still have it and I happened to catch the exchange on the mailing >> list archive when I was browsing it. ?Bad timing too, as I had just >> cleaned out my old imageclass dev files and started a couple other >> hacking activities a few days ago :-) >> >> Anyway, I took a quick peek at the provided log. ?First of all, it's a >> bit too short. ?A little longer log might be helpful. >> >> Secondly, the protocol looks a lot more like the mp750 based on: >> - Calibration cmd (0xe920) is in the logs like mp730/mp750 but not >> iclass >> - cmd_read_image length (10) is same as mp730/mp750 and unlike iclass >> (11) >> - cmd_err_info (0xff20) is in mp750 and iclass but not mp730 >> >> Perhaps try taking the USB ID out of pixma_imageclass.c and put it in >> pixma_mp750.c? ?I can keep digging into the log if you want and >> hopefully Jerry can supply a better one, but that's my initial >> impression. >> >> -Dennis >> >> P.S. I find it a bit curious that a laser-based MFP would need >> calibration. ?Aren't these things supposed to be quick-start for when >> the user wants to use it as a copier machine? >> >> >> > -------------- next part -------------- A non-text attachment was scrubbed... Name: test1-0514.log Type: application/octet-stream Size: 80705 bytes Desc: not available URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20090514/8da1c52f/attachment-0001.obj>
