Hello les gens

Voilà, j'ai un petit problème bizarre avec hotplug et mes droits sur mon scanner.
Problème confirmé ici

/etc/hotplug/usb/libusbscanner
This is a script that assigns ownership and permissions to the scanner when it is detected. The default is owned by root, group is "scanner", permissions are 660 (read write for owner and group, nothing for everyone else).

This sounded good to me so I created a scanner group (groupadd scanner), assigned myself to it. I then rebooted so hotplug could detect and assign permission to the scanner.

After rebooting, I still couldn't scan as a regular user. I looked at the permissions for /proc/bus/usb/002/003 and it was root:root and only the owner could write to the device. I manually changed the group and the permissions to root:scanner and 660, checked to see that they were applied (they were), and I was the able to scan as a regular user. I need to do more checking on what's happening here, if it's a hotplug problem, or something else. But, once the permissions are correctly applied to the usb device, iscan does work for a regular user.

Le problème étant que j'ai modifié libusbscanner comme suit:

if [ "$ACTION" = "add" -a "$TYPE" = "usb" ]; then
  chown root.scanner "$DEVICE"
  chmod 660 "$DEVICE"
fi

au lieu de

if [ "$ACTION" = "add" -a "$TYPE" = "usb" ]; then
  chown root:scanner "$DEVICE"
  chmod 0660 "$DEVICE"
fi

ça marche mais pas du premier coup. Quand je (re)boot mes droits sont en root.root sur le device du scanner mais si je fais un /etc/rc.d/rc.hotplug restart, mes droits deviennent root.scanner sur ce même device. Donc, je me dis que ma modification est bonne mais ce que je comprends pas, c'est pourquoi je n'ai pas les bons droits dès le départ.
Si qqn voit la raison, je suis toute ouïe.

Merci de l'aide

Edit
En définissant statiquement le Device du scanner, ça marche. Maintenant, je n'ai pas de le temps de modifier le script proprement, mais je le ferai et collerai ici.
En attendant, scannons abusivement