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From: "David L" <idht4n@hotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: serial port canonical mode weirdness?
Date: Thu, 01 Apr 2004 07:45:19 -0800
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> > 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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