[Soekris] Bizarre serial issue (4501)

[Igor Sobrado]

In message <9569ccb60607310840u6677939enc61dc64686d1f1be at mail.gmail.com>, Jeff Nettleton writes:
> Hello,
> 
> I just bought a new 4501, and I cannot seem to make it respond when I
> am connecting to it via serial.  I've got a null-modem cable, and I'm
> using the correct port settings (19200 8-n-1), yet I cannot seem to
> successfully connect to it on Linux or Windows. On Linux, I've tried
> "dmesg | grep ttyS" when I plug it in, but that doesn't show any
> devices being connected.  Is there anything I can do to confirm that
> the serial port on the box is operating correctly?

Hi, Jeff.

Can you provide a detailed step-by-step description of the way you
are connecting your PC to the net4501?  A device connected to a serial
port on a desktop/laptop will not be shown in the output of dmesg, but
you can expect a line identifying the serial port itself.  For example:

  ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

I would suggest using cu/tip to establish a connection to that device.

Cheers,
Igor.