linuxドライバ開発--カーネルモジュールパラメータ

1412 ワード

カーネルモジュールのパラメータ、検証の例:
/**
*Copyright (c) 2013.TianYuan
*All rights reserved.
*
*    : Modparma.c
*    :        
*
*    :1.0
*  :wuyq 
*
*    :xxx
*   :xxx
*    :2013-11-18
*/
#include <linux/init.h>
#include <linux/module.h>

/*       :                  */
/*       ,        :\
 insmod modparam.ko mpshort=100 mpint=200 mpstring="nihao" mparray=300,400*/
/*ls /sys/module/modparam/parameters*/
/*cat mparray;        echo 55 > mpshort;cat mpshort*/
MODULE_LICENSE("GPL");

/*       */
static short mpshort = 1;
static int mpint = 10;
static char *mpstring = "hello";
static int mparray[2] = {100, 200};
/*       */
module_param(mpshort ,short, S_IRWXU);
module_param(mpint, int , S_IRUSR);
module_param(mpstring, charp, 00400);/*char* */
module_param_array(mparray, int, NULL, 00400); 

static int __init modparam_init(void)
{
	printk("mpshort = %d
", mpshort); printk("mpint = %d
", mpint); printk("mpstring = %s
", mpstring); printk("mparray = %d, %d
", mparray[0], mparray[1]); return 0; } static void __exit modparam_exit(void) { printk("mpshort = %d
", mpshort); printk("mpint = %d
", mpint); printk("mpstring = %s
", mpstring); printk("mparray = %d, %d
", mparray[0], mparray[1]); } module_init(modparam_init); module_exit(modparam_exit);