Thank you for your patience.
I gave up on that problem, maybe I will revisit it in another month (as I have, multiple times, already). But, to answer that question, after waiting for device, and listening, nothing further happens. If I unplug it, and hot plug it, it waits, and listens, again, to no avail.
Here is my new problem with my F-122 and Teensy. For no reason, (well, the only thing I did was to):
hot plug a iMate ADB-to-USB converter and working AEK2 to the USB port on the front of the computer, for testing, with the F-122/Teensy running as usual. The Apple tested good and that was that. I unplugged it.
Now, I have lost my numpad, just as if I had pressed the "Numlock" button, which has not even existed for a year. I rebooted and went into BIOS, in expectation of setting "Numlock on at Boot" but apparently there is no such option on recent Gigabyte motherboards. The other keys I remapped around the perimeter of the Numpad still operate properly (obviously, since there is no Numlock any more!) but numpad 7 is "Home" no matter what I try to do.
For the time being, I suppose that I will try to re-map an unused key to Numlock so that I can press it if I need to. What is going on?
Finally, is there any advantage to remapping the Numpad, for instance, there seems to be a subtle difference between "3" and "numpad 3" ?
Thank you.