runtime/rumble_hd.c turns one of the game's vibration values (a low and a high band, each with a frequency and an
amplitude) into the four bytes a linear actuator's rumble report takes, clamps the frequencies to each band's ends and
the amplitude to the last safe step, and decides when a report is written: the newest value only, a held one again
every 30 ms, the neutral value three times once the game stops. Nothing calls it yet.
tests/rumble_hd_check.py builds it alone, checks known values, the clamps and a batch reduced to its reports, and
decodes a sweep of values with formulae of its own.
Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
