Hello Ilya, I mean someone else can tutor you, but not me. Sorry. I only participated becasue there was posibility xerox_mfp driver is working for you. But it isn't.
You can start by [re]reading provided url. Section "Writing a Backend (Driver)". Try to find out what the MS Windows driver does: http://www.meier-geinitz.de/sane/misc/develop.html + http://www.sane-project.org/backend-writing.txt Good bye. :) -abc On Sun, Nov 13, 2011 at 02:47:55PM +0300, Ilya Tumaykin wrote: > You mean I should step forward from Reporting Unsupported Scanners to the > next section Writing a Backend and start some coding? > > 13 ?????? 2011 ?. 13:56 ???????????? ABC <abc at telekom.ru> ???????: > > > I will not help you on that. Please read > > http://www.sane-project.org/contrib.html > > > > -abc > > > > On Sat, Nov 12, 2011 at 06:29:29PM +0300, Ilya Tumaykin wrote: > > > I have no /proc/bus/usb, but here are the rest of the info I collected. > > Not > > > sure if I should add these files as attachements, so I uploaded it to > > > pastebin.ca. > > > > > > dmesg > > > http://pastebin.ca/2093986 > > > > > > lsusb -vvv > > > http://pastebin.ca/2093987 > > > > > > sane-find-scanner -v -v (from root) > > > http://pastebin.ca/2093988 > > > > > > udevadm monitor --udev --kernel --property > > > http://pastebin.ca/2093989 > > > > > > What is the next step? > > > > > > 2011/11/11 ABC <abc at telekom.ru> > > > > > > > Hello Ilya Tumaykin, > > > > > > > > Then you should go standard/hard way: > > > > http://www.sane-project.org/contrib.html > > > > > > > > -abc > > > > > > > > On Fri, Nov 11, 2011 at 01:30:32AM +0300, ???? ???????? wrote: > > > > > Thanks for your reply. > > > > > > > > > > Of course I've already tried that with no luck at all. > > > > > The short story of things that already was tried (all of them > > failed): > > > > > 1. Added scanner's usb id to xerox_mfp.conf. Double checked udev > > rules > > > > for > > > > > correctness. Blacklisted usblp and built SANE with usb support. > > > > > 2. Got reports that SCX-4200 "just works" with latest Ubuntu. Checked > > > > > patches for Ubuntu package. None of them were related, however I > > gave it > > > > a > > > > > try with no luck. > > > > > 3. Installed latest Ubuntu just to be sure and eliminate the fact > > that I > > > > > could forgot some small detail. > > > > > 4. Tried several different versions of Samsung's Unified Driver on my > > > > > Gentoo and that clean Ubuntu I've just installed. > > > > > There are several comments related to this issue in Gentoo's bugzilla > > > > under > > > > > the name "Coacher": https://bugs.gentoo.org/show_bug.cgi?id=139715 > > > > > However, it is not SANE related. > > > > > 5. Recompiled 3.0.8 kernel with changed Makefile to make it 2.6.40.8 > > : > > > > > VERSION = 2 > > > > > PATCHLEVEL = 6 > > > > > SUBLEVEL = 40 > > > > > EXTRAVERSION = .8 > > > > > I'll also make a try with 3.1 later but I don'y think I'll be lucky. > > I > > > > was > > > > > trying to trick Samsung's driver so it is not SANE related too. > > > > > > > > > > The syptoms I have are the same after all this tries: when I plug in > > my > > > > MFP > > > > > I see dmesg info message, can see udevd output, even have my printer > > > > > working smoothly, but scanner is dead. > > > > > > > > > > 2011/11/10 ABC <abc at telekom.ru> > > > > > > > > > > > Hello Ilya, > > > > > > > > > > > > Try to add USB ids of your device to your xerox.conf > > > > > > and try scanimage -L > > > > > > > > > > > > -abc > > > > > > > > > > > > On Thu, Nov 10, 2011 at 10:44:54PM +0300, ???? ???????? wrote: > > > > > > > Hello everyone. > > > > > > > > > > > > > > I am a long time Linux user and Samsung SCX-4100 owner. In > > ancient > > > > times > > > > > > > SANE didn't have support for my model or, for exmaple, SCX-4200, > > so I > > > > > > used > > > > > > > Samsung's binary driver. Now it is incompatible with modern 3.x > > > > kernels > > > > > > and > > > > > > > I think it's a turning point for me to drop it in favor of > > opensource > > > > > > one. > > > > > > > Since SCX-4200 and SCX-4600 are supported by xerox_mfp backend I > > > > hope it > > > > > > > will be easier to add support for my scanner too. I send my call > > to > > > > devs > > > > > > to > > > > > > > help me achieve this mission. I have on my side Linux-powered > > > > machine, > > > > > > > Samsung SCX-4100, good knowledge of C and willing to make my old > > > > flatbed > > > > > > > working. Please guide me through. Where should I start? > > > > > > > > > > > > > > Best regards. > > > > > > > Ilya Tumaykin. > > > > > > > > > > > > > -- > > > > > > > sane-devel mailing list: sane-devel at lists.alioth.debian.org > > > > > > > > > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > > > > > > > Unsubscribe: Send mail with subject "unsubscribe your_password" > > > > > > > to sane-devel-request at lists.alioth.debian.org > > > > > > > > > > > > > > > -- > > > > > sane-devel mailing list: sane-devel at lists.alioth.debian.org > > > > > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > > > > > Unsubscribe: Send mail with subject "unsubscribe your_password" > > > > > to sane-devel-request at lists.alioth.debian.org > > > > > > > > > > > > > > > > -- > > > Best regards. > > > Ilya Tumaykin. > > > > > -- > > > sane-devel mailing list: sane-devel at lists.alioth.debian.org > > > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel > > > Unsubscribe: Send mail with subject "unsubscribe your_password" > > > to sane-devel-request at lists.alioth.debian.org > > > > > > -- > Best regards. > Ilya Tumaykin.