#ifndef __SERIAL_H__
#define __SERIAL_H__

typedef struct 
{
    char    tty[20];                //tty: 0, 1, 2, 3, 4, 5, 6, 7
    unsigned int   baudrate;        //baudrate
    unsigned char  prompt;          //prompt after reciving data
    unsigned char  databit;         //data bits, 5, 6, 7, 8
    unsigned char  debug;           //debug mode, 0: none, 1: debug
    unsigned char  echo;            //echo mode, 0: none, 1: echo
    unsigned char  fctl;            //flow control, 0: none, 1: hardware, 2: software
    unsigned char  parity;          //parity 0: none, 1: odd, 2: even
    unsigned char  stopbit;         //stop bits, 1, 2
    unsigned char  reserved;
} serial_attr_t;

extern int serial_open(const char * devname, int baudrate);
extern int serial_read(int fd, unsigned char * data, int len);
extern int serial_write(int fd, unsigned char * data, int len);
extern void serial_close(int fd);
#endif