Hello I have problems with my Canon Scanner LIDE 25. If i call scanimage or start a scan via xsane a strange sound appears and the scanner light does not move (although it starts glowing). The scanner is not defect (I have tested it on the Windows machine of a friend).
What can I do? Thank you in advance, Steffen scanimage -L: device `plustek:libusb:001:007' is a Canon LiDE25 USB flatbed scanner sane-find-scanner -q: found USB scanner (vendor=0x04a9 [Canon], product=0x2220 [CanoScan], chip=LM9832/3) at libusb:001:007 I have installed sane-backends-1.0.17 and sane-frontends-1.0.14 and xsane-0.991. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20060606/5b503ae1/attachment.pgp From [email protected] Mon Jun 5 14:47:23 2006 From: [email protected] (Nigel Ridley) Date: Mon Jun 5 14:48:07 2006 Subject: [sane-devel] Setting up Canon Perfection USB scanner for use in network: questions, problems In-Reply-To: <[email protected]> References: <[email protected]> Message-ID: <[email protected]> Niki Kovacs wrote: > Hi, > > I have a small home LAN consisting of four PC's: one old Pentium III box > acting as gateway / connection handler / printer server / file server / > scanner server, and then one desktop and two laptops. I recently > migrated this LAN from Slackware 10.2 to CentOS 4.3, and everything runs > rather fine. > > One thing I have some trouble setting up is my Canon Perfection USB > scanner for network use, which worked fine with Slackware, because > things work a bit differently under CentOS. > > The scanner is attached to the "server" box (192.168.1.1) with a minimal > install of CentOS, no window manager, no X. I installed sane-backends on > this machine and ran scanimage -L as root, which gave this: > > [root@babasse ~]# scanimage -L > device `epson:libusb:001:002' is a Epson Perfection610 flatbed scanner > > I read the various docs on sane-project.org, especially this document: > > http://penguin-breeder.org/sane/saned/ > > My first problem, and apparently one big difference between CentOS and > Slackware, is that there is no entry for the scanner in /dev. Now what > does the above output of scanimage -L exactly mean? That my scanner > device file is /proc/bus/usb/001/002? > > [root@babasse 001]# ls -l /proc/bus/usb/001/002 > -rw-r--r-- 1 root root 50 jun 5 08:57 /proc/bus/usb/001/002 > > Now, if that is the case (if not: correct me please), how do I change > permissions to that device file? So it doesn't belong to root.root, but > to saned.saned, according to the document linked above. > > By the way: saned.saned doesn't exist, so I just created this system > user like this: > > # useradd -d /dev/null -s /bin/false saned > > ... which gives: > > [root@babasse 001]# cat /etc/passwd | grep saned > saned:x:500:500::/dev/null:/bin/false > > (Did I define this system user in an orthodox way? Or is there a better > way to do this?) > > Now when I su to that user and try to run scanimage -L as saned, I get a > "No scanners were found" error, which is most likely a permission > problem on the device. Now the big question: how do I fix this? I > googled about "libusb hotplug scanner device permissions" and some > permutations. The problem is not the lack of information on the subject, > but the diverging wealth of it. > > Any suggestions? > > Niki Kovacs > > I had a similar problem with an Epson Stylus CX3700 all_in_one using Kubuntu. What I did was: First add all users to the 'scanner' group; then 'sudo chgrp scanner /proc/bus/usb/001/* /proc/bus/usb/002/* -R' (I changed both directories as I am not sure which one the scanner will [always] use). This is only a temporary solution as it will revert back to root root on either a reboot or if you restart the scanner - so I created a 'Bookmark' in 'Konsole' so instead of having to retype it all again I just click on the Bookmark and hit enter (then give my password). You could create an alias instead though. If you find a better solution please post it :-) Blessings, Nigel -- PrayingForIsrael.net http://www.prayingforisrael.net/ Messianic E-Cards.com http://www.messianicecards.com/
