do.txt

一个模拟的字符驱动程序

#make

#chmod +x load

#chmod +x unload

#insmod scull.ko

#cat /proc/moduls

#dmesg

#rmmod scull

#./load

#ls /dev/scull*

#echo hello > /dev/scull

#cat /dev/scull

#gcc test_scull.c –o test_scull

#./test_scull