#define  EV16P_MAX_NUM_DEV               10
#define  EV16P_MAX_CMD                   300      
#define  EV16P_NUM_GAGES                 4       
#define  EV16P_COM_PORT					 3
#define  EV16P_ADDR					 	 11

/*   #ifndef DUMMY_DEVICES
    	#define DUMMY_DEVICES
    #endif */ 

// Function declaration 
void ev16p_init(int rs232_com_port, int rs232_dev_addr, int* ID);
void ev16p_zero(int dev_ID, int gage);
void ev16p_exit(int dev_ID);
int ev16p_open_dev(int rs232_dev_addr);
void ev16p_close_dev(int dev_ID);
int ev16p_out(int dev_ID, char* buf);
int ev16p_in(int dev_ID, char* buf);
int ev16p_check_dev_open(int dev_ID);
void ev16p_clear_err(int dev_ID);
void ev16p_preset(int dev_ID, int gage, double readings[]); 
double ev16p_read(int dev_ID, int gage);
int ev16p_error_handling(int err, char descr[]);