diff --git a/study/driver/hello/Makefile b/study/driver/hello/Makefile
index 807729b..3b708b4 100644
--- a/study/driver/hello/Makefile
+++ b/study/driver/hello/Makefile
@@ -25,6 +25,9 @@ DRIVER_LICENSE := "Dual BSD/GPL"
 
 
 MODULE_NAME := hello
+MODCFLAGS:=-O6 -Wall -DMODULE -D__KERNEL__ -DLINUX -std=c99
+
+
 
 ifneq ($(KERNELRELEASE),)
 
diff --git a/study/driver/hello/hello.c b/study/driver/hello/hello.c
index 2dcb60c..c456dfb 100644
--- a/study/driver/hello/hello.c
+++ b/study/driver/hello/hello.c
@@ -1,7 +1,15 @@
 #include <linux/module.h>
+#include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/sched.h>
+//#include <linux/list.h>
+//#include <linux/mm.h>
+//#include <linux/mm_types.h>
+
 
 MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Gatieme");
+MODULE_DESCRIPTION("hello world");
 
 /*
  * print the module information
@@ -36,6 +44,7 @@ static int hello_init(void)
 
 static void hello_exit(void)
 {
+    printk(KERN_ERR"exit");
 }