[linux] Linux/Packet Programming Question

[Bob Nielsen]

On Mon, Aug 23, 2004 at 10:07:45AM -0700, Brett Collingwood wrote:
>  
>  
> The problem I have is that when I enter KISS mode, the TNC hangs.  I
> no longer can control the TNC, break out of the connection, etc.  The
> only way I've discovered to break out of KISS mode is to do a hard
> reset of the TNC, which isn't acceptable for this application.
>  
> I was wondering if there is an API that I haven't discovered yet or
> worse, there is no way to control the TNC in KISS mode via serial
> connection.  I could write my program in C if I have to but would
> rather stay with a Perl/Serial interface for this particular
> application. 
>  
> Any advice or pointers with KISS programming would surely be appreciated.

I am not familiar with Kantronics implementation of KISS, but with the 
TAPR firmware, sending a "255" will return the TNC to normal operation.

In Linux, you should be able to do this with the kissparms command 
(part of ax25-tools): kissparms -p <port> -x

If that works for you, you could probably do the same thing in Perl as 
kissparms does in C.

hth.

73, Bob N7XY