Killing mode2 gracefully?

[Helge <li...@br...>]

In order to get raw data for my Mitsubishi heat pump saved to file, I
have been using mode2 piped to a file and the pressing ctrl-c when the
data was sent.

When I scope the output from the real remote and from irsend, it seems
the signal from irsend is slightly shorter than the original signal.

I suspect maybe some bytes of output from mode2 gets lost without
being written to the file.

How can I tell mode2 to stop, flush its buffer to stdout and then
terminate?
-- 
Helge