/*****************************************************************************
* | File        :   luckfox_sysfs.h
* | Author      :   luckfox team
* | Function    :   sysfs
* | Info        :
*----------------
* |	This version:   V1.0
* | Date        :   2023-08-01
* | Info        :   Basic version
*
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to  whom the Software is
# furished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
******************************************************************************/
#ifndef _SYSFS_H_
#define _SYSFS_H_

/**
 * write_sysfs_int() - write an integer value to a sysfs file
 * @filename: name of the file to write to
 * @basedir: the sysfs directory in which the file is to be found
 * @val: integer value to write to file
 *
 * Returns a value >= 0 on success, otherwise a negative error code.
 **/
int write_sysfs_int(const char *filename, const char *basedir, int val);

/**
 * write_sysfs_int_and_verify() - write an integer value to a sysfs file
 *				  and verify
 * @filename: name of the file to write to
 * @basedir: the sysfs directory in which the file is to be found
 * @val: integer value to write to file
 *
 * Returns a value >= 0 on success, otherwise a negative error code.
 **/
int write_sysfs_int_and_verify(const char *filename, const char *basedir,
            int val);

/**
 * write_sysfs_string_and_verify() - string write, readback and verify
 * @filename: name of file to write to
 * @basedir: the sysfs directory in which the file is to be found
 * @val: the string to write
 *
 * Returns a value >= 0 on success, otherwise a negative error code.
 **/
int write_sysfs_string_and_verify(const char *filename, const char *basedir,
            const char *val);

/**
 * write_sysfs_string() - write string to a sysfs file
 * @filename: name of file to write to
 * @basedir: the sysfs directory in which the file is to be found
 * @val: the string to write
 *
 * Returns a value >= 0 on success, otherwise a negative error code.
 **/
int write_sysfs_string(const char *filename, const char *basedir,
            const char *val);

/**
 * read_sysfs_posint() - read an integer value from file
 * @filename: name of file to read from
 * @basedir: the sysfs directory in which the file is to be found
 *
 * Returns the read integer value >= 0 on success, otherwise a negative error
 * code.
 **/
int read_sysfs_posint(const char *filename, const char *basedir);

/**
 * read_sysfs_float() - read a float value from file
 * @filename: name of file to read from
 * @basedir: the sysfs directory in which the file is to be found
 * @val: output the read float value
 *
 * Returns a value >= 0 on success, otherwise a negative error code.
 **/
int read_sysfs_float(const char *filename, const char *basedir, float *val);

/**
 * read_sysfs_string() - read a string from file
 * @filename: name of file to read from
 * @basedir: the sysfs directory in which the file is to be found
 * @str: output the read string
 *
 * Returns a value >= 0 on success, otherwise a negative error code.
 **/
int read_sysfs_string(const char *filename, const char *basedir, char *str);

#endif