blob: 88eaa67352c06cc60f0b2e0ca64b6d7857375381 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/*
* $Id: hellop.c,v 1.4 2004/09/26 07:02:43 gregkh Exp $
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
MODULE_LICENSE("Dual BSD/GPL");
/*
* These lines, although not shown in the book,
* are needed to make hello.c run properly even when
* your kernel has version support enabled
*/
/*
* A couple of parameters that can be passed in: how many times we say
* hello, and to whom.
*/
static char *whom = "world";
static int howmany = 1;
module_param(howmany, int, S_IRUGO);
module_param(whom, charp, S_IRUGO);
static int hello_init(void)
{
int i;
for (i = 0; i < howmany; i++)
printk(KERN_ALERT "(%d) Hello, %s\n", i, whom);
return 0;
}
static void hello_exit(void)
{
printk(KERN_ALERT "Goodbye, cruel world\n");
}
module_init(hello_init);
module_exit(hello_exit);
|
