[Discuss-gnuradio] PowerMate and Contour ShuttlePRO

[Eric Blossom]

Thanks to Matt's desire to have a knob to twist, gr-wxgui now has
support for the Griffin PowerMate USB knob, as well as the Contour
Shuttle/Jog controllers (ShuttlePRO, ShuttleXpress)

It's up to you to figure out what you want to have them control, but
there's code that will send you events on button press/release, dial
motion, and shuttle ring position.

The code's in gr-wxgui/src/python/powermate.py

This uses the Linux /dev/input/event* interface.
Support under other operating systems is left as an exercise for the student.
Patches welcome!

Have fun!
Eric