I'm going crazy trying to set user permissions for USB scanner

[the dsc]

I've read all over the internet, the same problem occurs to some people, in different distributions.... for some people, the solution was simply to (re?)install udev..... I must have a really bad karma since this and other stuff apparently are not working for me....

I think got to change some obscure .rules files whose syntax I can't grasp, and also there's that thing with links to the rules files putting them on a certain sequence which is needed to everything work, I simply have no idea if the current position of the sane-related file is right.... there were two files with the same initial nuber, just to be sure that would'nt be a problem I've renamed one of them, but I think it was needless since probably it would just follow the alphanumerical sequence... but I can't really blame myself, this whole thing must have burnt half of my brain already...

Are not there something very plainly no-brainer, an icon with a scanner or usb where I could simply right click and set the "scanner" group as an owner?

There is the scanner group already, the normal user already belongs to it, the file already sets mode 0660 for it, but..... I think it's being ignored or something, I just don't know...

I'm sorry for all the whining.... a magic bullet, anyone?

[techieMoe]

What kind of scanner is it? Make/Model?

[the dsc]

It is a Canon LiDE 25, and is correctly detected as such by sane-find-scanner - even as a normal user - and by scanimage -L - only as a super user.

Is not there some sort of "knoppixifier" program which we could use to detect and install things on an existing installation? That would be nice to see

[the dsc]

I've reinstalled linux recently, so I'm having some of the old problems again, so I stumble with my own previous topics when looking for info

Eventually I've found a way to normal users to use the scanner without kdesu or something, but I've probably done much more than I really needed to...

This time turned out that it was solved pretty easily. I edited the file /etc/users and added myself to the groups "scanner", "usb", some apparently sane-related ones, and another one I suspected that could be related with usb-like things (I think it was "plugdev") - I think I'll remove myself from the last one and see if it still works. Probably even the group "usb" wasn't really needed, as I've created it now, and the root user could use the scanner without it. I guess that I could instead of adding my username to the list, add some code-number for "normal users", but I don't know which number it would be, so I"ll stick with the username anyway.

Just in case someone else also stumbles with this topic, in order to the modification in the group to be effectively "applied", you must enter the command "newgrp groupname", probably as root.

[bigtomrodney]

Thanks for updating the thread dsc

[the dsc]

You're welcome...

As a general rule, should I close topics like this with "[solved]", or would be better to left it opened just in case someone appears with a follow-up?