/*#ifndef __modbus__#define __modbus__ 1*/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#include <termios.h>#include <pthread.h>#define VERSION "0.0.1"struct termios saved_tty_parameters;			/* old serial port setting (restored on close) */struct termios Mb_tio;								/* new serail port setting */int Mb_verbose;										/* print debug informations */int Mb_status;											/* stat of the software : This number is free, it's use with function #07 */int *Mbs_data;											/* slave modbus data */int Mbs_pid;											/* PID of the slave thread */typedef unsigned char byte;						/* create byte type *//* master structure */typedef struct {   int device;											/* modbus device (serial port: /dev/ttyS0 ...) */   int slave; 											/* number of the slave to call*/   int function; 										/* modbus function to emit*/   int address;										/* slave address */   int length;											/* data length */   int timeout;										/* timeout in ms */} Mbm_trame;/*pointer functions */void (*Mb_ptr_rcv_data) ();						/* run when receive a char in master or slave */void (*Mb_ptr_snd_data) ();						/* run when send a char  in master or slave */void (*Mb_ptr_end_slve) ();						/* run when slave finish to send response trame *//* master main function :- trame informations- data in- data out- pointer function called when master send a data on serial port (can be NULL if not use)- pointer function called when master receive a data on serial port (can be NULL if not use)*/int Mb_master(Mbm_trame, int [] , int [], void*, void*);/* slave main function (start slave thread) :- device- slave number- pointer function called when slave send a data on serial port (can be NULL if not use)- pointer function called when slave receive a data on serial port (can be NULL if not use)- pointer function called when slave finish to send data on serial port (can be NULL if not use)*/void Mb_slave(int, int, void*, void*, void*);void Mb_slave_stop(void);											/* stop slave thread *//* commun functions */int Mb_open_device(char [], int , int , int ,int );		/* open device and configure it */void Mb_close_device();												/* close device and restore old parmeters */int Mb_test_crc(unsigned char[] ,int );						/* check crc16 */int Mb_calcul_crc(unsigned char[] ,int );						/* compute crc16 */void Mb_rcv_print(unsigned char);				/* print a char (can be call by master or slave with Mb_ptr_rcv_data)*/void Mb_snd_print(unsigned char);				/* print a char (can be call by master or slave with Mb_ptr_rcv_data)*/char *Mb_version(void);								/* return libmodbus version */