Re: serial port canonical mode weirdness?

[David L]

> > When I configure a serial port for canonical mode (newtio.c_lflag = 
> ICANON),
> > I get behavior that isn't what I'd expect.
>
> Can you supply the test program you're using on the receive end?
>
> --
#include <termios.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>

#define BAUDRATE B38400
#define SERIALDEVICE "/dev/ttyS0"

int main()
{
 int fd, res;
 struct termios newtio;
 unsigned char buf[10000];

 fd = open(SERIALDEVICE, O_RDWR);
 if (fd <0) {perror(SERIALDEVICE); return -1; }

 bzero(&newtio, sizeof(newtio));

 newtio.c_cflag = BAUDRATE | CS8 | CLOCAL | CREAD;
 newtio.c_iflag = IGNPAR;
 newtio.c_lflag = ICANON;

 newtio.c_cc[VEOL]     = 0x0D;

 tcsetattr(fd,TCSANOW,&newtio);

 while (1) {
   res = read(fd,buf,9000);
   printf("%d bytes read (%d)\n", res, errno);
   printf("%02X %02X %02X %02X %02X %02X\n", 
buf[0],buf[1],buf[2],buf[3],buf[4],buf[5]);
 }
}

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