hd_tick picks a report under the locks and writes it to the pair after letting them go. When input_rumble_hd_stop
wrote the neutral value and closed the pair in between, that write opened the two devices again and left the
Joy-Con vibrating after the exit. The stop now ends the pair (hd_pair_end), and hd_pair_write checks that under the
lock it holds for the write, so nothing is written after the stop.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
With NX2NAVI_RUMBLE_HD=1 (live, off by default) the gamepad the game reads, when it is a Switch Pro Controller, a
single Joy-Con or a pair of them, gets each side's low and high band with its own frequency and amplitude in the
controller's rumble report, and no dual-motor call any more. A Pro Controller and a single Joy-Con take the report
through SDL's effect call, over USB and Bluetooth; SDL refuses that call for a combined pair, so a pair's reports are
written to its two HID devices directly. Every other gamepad, the Switch 2 controllers included, keeps the motors.
The game's thread posts its newest values and a thread of input.c writes the reports: at most one every 15 ms
(rumble_hd_ms), a held value again every 30 ms, and the neutral value when the game stops sending for 250 ms, when
another gamepad takes over, when the setting is turned off and before the process ends. The rumble strength scales the
amplitude and rumble = 0 silences this path as well. With the setting off nothing is written to the controller: the
log line at the take names it by its ids, and the first report is the trial.
Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
