linux-imx

/*

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

 *

 * 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.

 */

​

#include <linux/delay.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/list.h>

#include <linux/interrupt.h>

#include <linux/spinlock.h>

#include <linux/timer.h>

#include <linux/device.h>

#include <linux/slab.h>

#include <linux/sched.h>

#include <linux/kthread.h>

#include <linux/freezer.h>

#include <linux/hwmon.h>

#include <linux/of.h>

​

#include <linux/atomic.h>

​

#include "w1_internal.h"

#include "w1_netlink.h"

​

#define W1_FAMILY_DEFAULT   0

​

static int w1_timeout = 10;

module_param_named(timeout, w1_timeout, int, 0);

MODULE_PARM_DESC(timeout, "time in seconds between automatic slave searches");

​

static int w1_timeout_us = 0;

module_param_named(timeout_us, w1_timeout_us, int, 0);

MODULE_PARM_DESC(timeout_us,

         "time in microseconds between automatic slave searches");

​

/* A search stops when w1_max_slave_count devices have been found in that

 * search.  The next search will start over and detect the same set of devices

 * on a static 1-wire bus.  Memory is not allocated based on this number, just

 * on the number of devices known to the kernel.  Having a high number does not

 * consume additional resources.  As a special case, if there is only one

 * device on the network and w1_max_slave_count is set to 1, the device id can

 * be read directly skipping the normal slower search process.

 */

int w1_max_slave_count = 64;

module_param_named(max_slave_count, w1_max_slave_count, int, 0);

MODULE_PARM_DESC(max_slave_count,

    "maximum number of slaves detected in a search");

​

int w1_max_slave_ttl = 10;

module_param_named(slave_ttl, w1_max_slave_ttl, int, 0);

MODULE_PARM_DESC(slave_ttl,

    "Number of searches not seeing a slave before it will be removed");