/*

 * This is from udev-121 udev.h

 *

 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>

 * Copyright (C) 2003-2006 Kay Sievers <kay.sievers@vrfy.org>

 *

 *	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 version 2 of the License.

 *

 *	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.,

 *	51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 *

 */

#ifndef _SYSFS_

#define _SYSFS_

#include <stdint.h>

#include "list.h"

#include "string.h"

#define PATH_SIZE				512

#define NAME_SIZE				256

struct sysfs_device {

	struct list_head node;			/* for device cache */

	struct sysfs_device *parent;		/* already cached parent*/

	char devpath[PATH_SIZE];

	char subsystem[NAME_SIZE];		/* $class, $bus, drivers, module */

	char kernel[NAME_SIZE];			/* device instance name */

	char kernel_number[NAME_SIZE];

	char driver[NAME_SIZE];			/* device driver name */

};

extern char sysfs_path[PATH_SIZE];

extern int sysfs_init(void);

extern void sysfs_cleanup(void);

extern void sysfs_device_set_values(struct sysfs_device *dev, const char *devpath,

				    const char *subsystem, const char *driver);

extern struct sysfs_device *sysfs_device_get(const char *devpath);

extern struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev);

extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem);

extern char *sysfs_attr_get_value(const char *devpath, const char *attr_name);

extern int sysfs_resolve_link(char *path, size_t size);

extern int sysfs_lookup_devpath_by_subsys_id(char *devpath, size_t len, const char *subsystem, const char *id);

extern char *sysfs_get_value(const char *id, char *subsys, char *param);

extern int sysfs_get_uint(char *id, char *subsys, char *param,

			  unsigned int *value);

extern int sysfs_get_int(const char *id, char *subsys, char *param, int *value);

extern int sysfs_get_str(char *id, char *subsys, char *param, char *value,

			 int value_size);

extern int sysfs_get_uint64(char *id, char *subsys, char *param,

			    uint64_t *value);

extern int sysfs_get_uint8(char *id, char *subsys, char *param,

			   uint8_t *value);

extern int sysfs_get_uint16(char *id, char *subsys, char *param,

			    uint16_t *value);

extern int sysfs_set_param(char *id, char *subsys, char *attr_name,

			   char *write_buf, ssize_t buf_size);

extern char *sysfs_get_uevent_field(const char *path, const char *field);

extern char *sysfs_get_uevent_devtype(const char *path);

extern char *sysfs_get_uevent_devname(const char *path);

#endif