linux-imx

/*

 *  cn_test.c

 * 

 * 2004+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>

 * All rights reserved.

 * 

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

​

#define pr_fmt(fmt) "cn_test: " fmt

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/skbuff.h>

#include <linux/slab.h>

#include <linux/timer.h>

​

#include <linux/connector.h>

​

static struct cb_id cn_test_id = { CN_NETLINK_USERS + 3, 0x456 };

static char cn_test_name[] = "cn_test";

static struct sock *nls;

static struct timer_list cn_test_timer;

​

static void cn_test_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)

{

    pr_info("%s: %lu: idx=%x, val=%x, seq=%u, ack=%u, len=%d: %s.\n",

            __func__, jiffies, msg->id.idx, msg->id.val,

            msg->seq, msg->ack, msg->len,

            msg->len ? (char *)msg->data : "");

}

​

/*

 * Do not remove this function even if no one is using it as

 * this is an example of how to get notifications about new

 * connector user registration

 */

#if 0

static int cn_test_want_notify(void)

{

    struct cn_ctl_msg *ctl;

    struct cn_notify_req *req;

    struct cn_msg *msg = NULL;

    int size, size0;

    struct sk_buff *skb;

    struct nlmsghdr *nlh;

    u32 group = 1;

​

    size0 = sizeof(*msg) + sizeof(*ctl) + 3 * sizeof(*req);

​