How to pass data from telem2 to telem1？

ArduCopter Copter 3.6
1

Hi,
How to pass data from telem2 to telem1, which is a custom mavlink message and wants to be transmitted to the ground control station.
Thanks for your help!

2

Try the docs: http://ardupilot.org/dev/docs/mavlink-routing-in-ardupilot.html

3

Thank you.
I’ve passed the message containing the specific MavID from telem2 to telem1.
GCS_MAVlink.cpp:handleMessage first,then call custom transport Subfunction.
I’ve mistaken the port previously.
(sorry my poor english ~T.T~ )

4

@amilcarlucas
thank you.