/* * linux/drivers/usbd/usbd-hotplug.c  * * Copyright (c) 2000, 2001, 2002 Lineo * Copyright (c) 2001 Hewlett Packard * * By:  *      Stuart Lynne <sl@lineo.com>,  *      Tom Rushworth <tbr@lineo.com>,  *      Bruce Balden <balden@lineo.com> * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. * */#include <linux/config.h>#include <linux/module.h>#include "usbd-export.h"#include "usbd-build.h"#include "usbd-module.h"#include <linux/init.h>#include <linux/kernel.h>#include <linux/list.h>#include <asm/uaccess.h>#include <linux/netdevice.h>#include <linux/skbuff.h>#include <linux/etherdevice.h>#include <net/arp.h>#include <linux/rtnetlink.h>#include <linux/smp_lock.h>#include <linux/ctype.h>#include <linux/timer.h>#include <linux/string.h>#include <linux/pkt_sched.h>#include <asm/io.h>#include <linux/proc_fs.h>#include <linux/kmod.h>#if defined(CONFIG_PM)#include <linux/pm.h>#endif#ifdef CONFIG_HOTPLUGint hotplug (char *agent, char *interface, char *action){	char *argv[3], *envp[5], ifname[12 + IFNAMSIZ], action_str[32];	if (!hotplug_path[0]) {		printk (KERN_ERR "hotplug: hotplug_path empty\n");		return -EINVAL;	}	//printk(KERN_DEBUG "hotplug: %s\n", hotplug_path);	if (in_interrupt ()) {		printk (KERN_ERR "hotplug: in_interrupt\n");		return -EINVAL;	}	sprintf (ifname, "INTERFACE=%s", interface);	sprintf (action_str, "ACTION=%s", action);	argv[0] = hotplug_path;	argv[1] = agent;	argv[2] = 0;	envp[0] = "HOME=/";	envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";	envp[2] = ifname;	envp[3] = action_str;	envp[4] = 0;	return call_usermodehelper (argv[0], argv, envp);}#endif				/* CONFIG_HOTPLUG */