/home/lihacker/develop/svn/ldd10-read-only/training/kernel/drivers/hello
< hello.c >
/*
* A simple kernel module: "hello world"
*
* The initial developer of the original code is Barry Song
* <21cnbao@gmail.com>. All Rights Reserved.
*/
#include
#include
static int hello_init(void)
{
printk(KERN_INFO " Hello World enter\n");
return 0;
}
static void hello_exit(void)
{
printk(KERN_INFO " Hello World exit\n ");
}
module_init(hello_init);
module_exit(hello_exit);
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("A simple Hello World Module");
MODULE_ALIAS("a simplest module");
< Makefile >
KVERS = $(shell uname -r)
# Kernel modules
obj-m += hello.o
# Specify flags for the module compilation.
#EXTRA_CFLAGS=-g -O0
build: kernel_modules
kernel_modules:
make -C /lib/modules/$(KVERS)/build M=$(CURDIR) modules
clean:
make -C /lib/modules/$(KVERS)/build M=$(CURDIR) clean
