My father has a Umax Astra 2000P parallel port scanner. In order to allow scanning as an ordinary user, we would like to make /dev/parport0 world-readable and writable. Prior to udev one could just change the permissions from 660 to 666. This won't work with udev recreating the device after each boot. I tried editing /etc/udev/rules.d and changing the permissions in the line
KERNEL=="parport*", GROUP="lp", MODE="0660"
to 666 instead. But it doesn't work - after rebooting, the permissions are still 660. Any ideas?