[BRLTTY] some serial help

[covici at ccs.covici.com]

Do a better grep of your dmesg, such as grep  -i ttys  or something --
you should see registration for all such ports, or look in the actual
hard disk log files.  I bet you have more than those 4 ports, if your
card is working at all.

Rob Hudson <captinlogic at gmail.com> wrote:

> Jason White jason at jasonjgw.net Wrote:
> I would suggest looking at the boot messages to confirm that the card and
> the
> serial ports on it are detected. If you have another serial device (not a
> braille display), you should test writing output to the ports, e.g., echo
> some
> text > /dev/ttyS0 (try several of the serial devices until you find the one
> that matches the port).
> Okay, here's what I did.
> root at coffee-bean:~# dmesg | grep tty
> [   73.750291] usb 3-3: Keyspan 1 port adapter converter now attached
> to ttyUSB0
> No reference to my serial card there at all. However it is still
> listed under /dev, like so
> root at coffee-bean:~# ls -l /dev | grep ttyS
> crw-rw---T 1 root      dialout   4,  64 Jun 24 21:49 ttyS0
> crw-rw---T 1 root      dialout   4,  65 Jun 24 21:49 ttyS1
> crw-rw---T 1 root      dialout   4,  66 Jun 24 21:49 ttyS2
> crw-rw---T 1 root      dialout   4,  67 Jun 24 21:49 ttyS3
> And if I do this:
> root at coffee-bean:~# setserial -g /dev/ttyS0
> /dev/ttyS0, UART: unknown, Port: 0x03f8, IRQ: 4
> root at coffee-bean:~# setserial -g /dev/ttyS1
> /dev/ttyS1, UART: unknown, Port: 0x02f8, IRQ: 3
> root at coffee-bean:~# setserial -g /dev/ttyS2
> /dev/ttyS2, UART: unknown, Port: 0x03e8, IRQ: 4
> root at coffee-bean:~# setserial -g /dev/ttyS3
> /dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
> Unfortunately, I don't know which manufacturer this card is from. I
> found it in a box of misc stuff and I don't remember where I bought it
> from to check order history. What else can I look at? 
> 
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-- 
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

         John Covici
         covici at ccs.covici.com