[Linux-parport] parport permissions after boot

[rtwas]

Hello,

It seems the parport driver system creates the /dev/parport0,1..n on the 
fly after every boot. Unfortunately
it sets the permissions to root, root (instead of root, users or root, 
lp). This is a big problem for me/us here
since we use the ppdev driver and the parallel port for a classroom of 
Highschool students. We shutdown
all the computers regularly and manually setting the permissions over 
N-machines is cumbersome.
 Is there a way to configure the driver to do something different at boot?

Thanks.

Robert W.