cruiseoveride

   #include <stdio.h>   /* Standard input/output definitions */    #include <string.h>  /* String function definitions */    #include <unistd.h>  /* UNIX standard function definitions */    #include <fcntl.h>   /* File control definitions */    #include <errno.h>   /* Error number definitions */    #include <termios.h> /* POSIX terminal control definitions */int main(int argc, char **argv){	int fd;	struct termios options;	char buffer[128];  /* Input buffer */	int  nbytes;       /* Number of bytes read */	int  tries;        /* Number of tries so far */		fd = open("/dev/ttyUSB0", O_RDWR | O_NOCTTY | O_NDELAY);	fcntl(fd, F_SETFL, 0);	if (fd == -1)perror("open_port: Unable to open /dev/ttyUSB0 - "); fcntl(fd, F_SETFL, 0);	 /* get the current options */	tcgetattr(fd, &options);	options.c_cflag &= ~PARENB;	options.c_cflag &= ~CSTOPB;	options.c_cflag &= ~CSIZE;	options.c_cflag |= CS8;	options.c_iflag &= ~(IXON | IXOFF | IXANY);	options.c_oflag &= ~OPOST;    /*     * Set the baud rates to 19200...     */	cfsetispeed(&options, B19200);	cfsetospeed(&options, B19200);	 /* set the options */	tcsetattr(fd, TCSANOW, &options);	for(;;){		nbytes = read(fd,&buffer,sizeof(buffer));		printf("nbytes = %i; buffer = %32.32x\n",nbytes,buffer);	}	close(fd);	return 0;}--------------------------gcc cod.c && sudo ./a.out nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860nbytes = 1; buffer = 000000000000000000000000be2d3860