#!/bin/shmodule="scull"device="scull"group="wheel"mode="664"# invoke insmod with all arguments we got/sbin/insmod -f $module $* || exit 1major=`cat /proc/devices | awk "\\$2==\"$module\" {print \\$1}"`# Remove stale nodes and replace them, then give gid and perms# Usually the script is shorter, it's scull that has several devices in it.rm -f /dev/${device}[0-3]mknod /dev/${device}0 c $major 0mknod /dev/${device}1 c $major 1mknod /dev/${device}2 c $major 2mknod /dev/${device}3 c $major 3ln -sf ${device}0 /dev/${device}chgrp $group /dev/${device}[0-3] chmod $mode  /dev/${device}[0-3]rm -f /dev/${device}privmknod /dev/${device}priv  c $major 16chgrp $group /dev/${device}privchmod $mode  /dev/${device}privrm -f /dev/${device}pipe[0-3]mknod /dev/${device}pipe0 c $major 32mknod /dev/${device}pipe1 c $major 33mknod /dev/${device}pipe2 c $major 34mknod /dev/${device}pipe3 c $major 35ln -sf ${device}pipe0 /dev/${device}pipechgrp $group /dev/${device}pipe[0-3] chmod $mode  /dev/${device}pipe[0-3]rm -f /dev/${device}singlemknod /dev/${device}single  c $major 48chgrp $group /dev/${device}singlechmod $mode  /dev/${device}singlerm -f /dev/${device}uidmknod /dev/${device}uid   c $major 64chgrp $group /dev/${device}uidchmod $mode  /dev/${device}uidrm -f /dev/${device}wuidmknod /dev/${device}wuid  c $major 80chgrp $group /dev/${device}wuidchmod $mode  /dev/${device}wuid