| Log Message:
| As a safety, check that the controller is not suspended when we get
| an interrupt.

I'd sort of like to not see a kernel printf every time I
suspend/resume; I'm not sure if this is a reasonable desire on my part
or not.

It seems weird to print it out if it's not a condition we can do anything
about or resolve. Perhaps a counter should be incremented silently
or something. (?)

--jhawk