[Xastir] shared serial output?

[Kurt A. Freiberger]

I looked at the sources for gpsd and am as confused as a milkman at a 
crematorium.  Does anybody know a way to wedge it so that when one 
attaches, one gets the raw datastream without sending "R"?  Basically, 
attach, and it streams.

Thanks,
Kurt


Curt Mills wrote:
> On Sat, 5 Jun 2004, Jim Meehan wrote:
> 
> 
>>I'd like to be able to use serial output from my TNC to feed multiple
>>applications.  Xastir and also another custom packet radio application.
>>I think the easy way to do this is with AX.25 -- unfortunately I'm using
>>Mac OS X and there is no kernel AX.25 support that I know of.
>>
>>Anyone know of an easy way to share a serial device between two applications?
> 
> 
> 1) I would think you could write a script fairly easily (in Perl
> perhaps) that would connect to the port and provide two or more pty
> ports for the applications to connect to.  You could make this talk
> in two directions.
> 
> 2) Feed the rxd line to two serial ports and have each application
> connect to one port.  This will work for receive data, but not for
> both serial ports sending TO the TNC, unless you used some sort of
> diode multiplexing.
> 
> 3) Run aprsd on that port, then have the applications connect to
> localhost:socket to talk to the TNC.
> 
> 4) More?
> 

-- 
Kurt Freiberger, WB5BBW   kurt at badgers-hill.net  Austin, TX