spull_load

LINUX设备驱动程序第二版配套源码 LINUX设备驱动程序第二版配套源码 Alessandro rubini&Jonathan corbet著 中国电力出版社 魏永明 骆刚 姜君译 69元

#!/bin/sh
module="spull"
device="pd"
group="wheel"
mode="664"

# invoke insmod with all arguments we got
/sbin/insmod -f $module $* || exit 1

major=`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/${device}[a-d][0-8] /dev/${device}[a-d]

for p in "" 1 2 3 4 5 6 7 8; do
	n=$p; if [ "$n" = "" ]; then n=0; fi
	mknod /dev/${device}a${p} b $major $n
	mknod /dev/${device}b${p} b $major `expr 16 + $n`
	mknod /dev/${device}c${p} b $major `expr 32 + $n`
	mknod /dev/${device}d${p} b $major `expr 48 + $n`
done

chgrp $group /dev/${device}[a-d][0-8]  /dev/${device}[a-d]
chmod $mode  /dev/${device}[a-d][0-8]  /dev/${device}[a-d]