1	#ifndef SERIAL_H
    2	#define SERIAL_H 1
    3	
    4	#ifndef TRUE
    5	#define TRUE 1
    6	#define FALSE 0
    7	#endif
    8	
    9	int ser_get_bps_const(int speed);
   10	int ser_init_conn(char *tty, int speed);
   11	int ser_set_flow_control(int fd, int status);
   12	int ser_get_control_lines(int fd);
   13	int ser_set_control_lines(int fd, int state);
   14	int ser_write(int fd, unsigned char *data, int len);
   15	int ser_read(int fd, unsigned char *data, int len);
   16	
   17	#endif