Serial port not working in 10.10

[Goran Hasse]

2010/12/18 Nils Kassube <kassube at gmx.net>

> Goran Hasse wrote:
> > I have tried all kinds of serial-modules (witch should it bee?) and
> > both minicom and cu (connect unix) without success. So I think it is
> > a device driver problem...
>
> Unless you have compiled your own kernel, the driver for the serial
> ports should be in the kernel, you don't need extra modules. You could
> check if the serial ports are detected with the command
>
> dmesg|grep 8250
>
> in a terminal. The output should look like this:
>
> [    0.382331] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    0.382481] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
>
> The second line tells you which port is detected, if there are several
> ports, there should be individual lines for each port. If you only see
> the first line, there is no port detected. However if you have some
> serial card with non-standard hardware ports, you may need the setserial
> program to initialize the port(s) on that card.
>

dmesg | grep 8250
[    0.452185] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.452346] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

I have tried setserial without success.

I have also made lengthy elaboratoions with programming the
serial port.

Like
 memset(&t, 0, sizeof(t));
  cfmakeraw(&t);

  printf("Port open\n");

  //t.c_iflag |= ISTRIP;
  //t.c_cflag &= ~CSIZE;
  //t.c_cflag |= PARENB | CLOCAL;

  t.c_cflag = CS8;
  //  t.c_cflag |= ISTRIP;
  t.c_cflag |= CREAD ;
  t.c_cflag |= CLOCAL ;

  t.c_lflag &= ~(ECHO | ICANON );

  cfsetispeed(&t, B9600);
  cfsetospeed(&t, B9600);

  if (tcsetattr(fd, TCSANOW, &t) < 0) {
    perror("tcsetattr");
    return EXIT_FAILURE;
  }

etc

(endless variations)




> Nils
>
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-- 
gorhas at gmail.com
Göran Hasse
Boo 229
715 91  ODENSBACKEN
Mob: 070-5530148
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