David Woodfall's Homepage - Slackbuilds and Scripts

Just a short word about setting up sane.

You've just plugged in your shiny new scanner, selected the right backend and
tried to run xsane but get permision denied. So you run it as root and find
it works. Great but running as root in the long term is not the answer.

What you now need to do is set up correct permissions to run xsane as a normal
user. Hopefully you are in the 'scanner' group. If not, get yourself in it:

Replace your needed groups as you like, but as root it's roughly:

usermod -G floppy,audio,video,cdrom,plugdev,power,scanner username
groups username

Now find the usb device that your scanner is using:

scanimage -L

Hopefully you get output like the following:

device `snapscan:libusb:001:002' is a EPSON EPSON Scanner1 flatbed scanner

The parts we are interesting in are the numbers 001 and 002. This means that
the scanner is using /proc/bus/usb/001/002 and this is the file we need to
change permissions of:

as root again:

chown root:scanner /proc/bus/usb/001/002
chmod g+rw /proc/bus/usb/001/002

This sets group ownership and allows users in scanner group rw access. Now you
should be able to scan.

But you've just resumed your pc from hibernation or suspension and now the usb
device has changed. That's why I created the scanperms script - it will find
your scanner and set the permissions. You can source/run the file from your
hibernation script and /etc/rc.d/rc.local


Cheers.

dive on #slackware dave@dawoodfall.net