APM Planner not recognizing virtual serial port

I've recently been refining a technique for capturing MAVLINK packets via Wireshark and I could really use a virtual COM port in order to properly connect.  This would work perfectly, except the Mission Planner will not list or recognize anything under /dev/pts (yes, I'm using Linux), which is where the virtual ports are.  Does anyone know a good workaround?  I'm using socat to create/link the ports and a simple C program to read, split, pipe, and rewrite the data I'm getting.

Thanks for any help!

EDIT:  So I got a hold of the Mission Planner source code and changed it so that it recognizes devices from /dev/pts/.  Still the same problem, as if it thinks that there is no port there at all.  Is there some setting that I need to check/change right off the bat when I create the virtual port in order for programs to recognize it?

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Permalink Reply by Tommy Larsen on July 24, 2012 at 2:08pm

Maybe you find something here : http://com0com.sourceforge.net/

Permalink Reply by Paul Hoi on July 25, 2012 at 9:27am

I'm currently using socat (since it's made for Linux), which is very similar to com0com.  I'm afraid I would run into the exact same problem with com0com, though--the fact that the Mission Planner won't recognize the virtual serial port that's created.  I guess I'll look into it, though.


DeveloperPermalink Reply by Michael Oborne on July 25, 2012 at 6:06pm

on linux cant you just ln to a new name? i thought you could

Permalink Reply by Paul Hoi on July 25, 2012 at 6:19pm

Hmm, what do you mean, "ln" to a new name?  Mission planner only seems to recognize tty devices and stuff in /dev/serial/by-id/ (if you're referring to "creating" another item in /dev or something).

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