驱动代码hello.c

#include <linux/init.h>

#include <linux/module.h>

static int hello_init(void)

{

	printk(KERN_ALERT "Hello, world\n");

	return 0;

}

static void hello_exit(void)

{

	printk(KERN_ALERT "Goodbye, cruel world\n");

}

module_init(hello_init);

module_exit(hello_exit);

Makefile内容

文件名必须保存为Makefile，开头大写！

ifneq ($(KERNELRELEASE),)

obj-m := hello.o

else

PWD  := $(shell pwd)

KVER := $(shell uname -r)

KDIR := /lib/modules/$(KVER)/build

all:

	$(MAKE) -C $(KDIR) M=$(PWD) modules

clean:

	rm -rf .*.cmd *.o *.mod.c *.ko .tmp_versions

endif