shortprint_load

Linux设备驱动的经典教材, 该电子书是第三版,并附有全部配套代码.

#!/bin/sh
module="shortprint"
device="shortprint"
mode="666"

# Group: since distributions do it differently, look for wheel or use staff
if grep '^staff:' /etc/group > /dev/null; then
    group="staff"
else
    group="wheel"
fi


# invoke insmod with all arguments we got
# and use a pathname, as newer modutils don't look in . by default
/sbin/insmod -f ./$module.ko $* || exit 1

major=`cat /proc/devices | awk "\\$2==\"$module\" {print \\$1}"`

# Create 8 entry points, as SHORT_NR_PORTS is 8 by default
rm -f /dev/${device}
mknod /dev/${device} c $major 0

chgrp $group /dev/${device}
chmod $mode  /dev/${device}