Even if a joystick/joypad is plug in Max book pro Gamepad exemple is never working.

when using
QLoggingCategory::setFilterRules(QStringLiteral("qt.gamepad.debug=true"));

I got in console:
23:35:59.833 [D] Available backends: () ((null):0, (null))
23:35:59.833 [D] Using dummy backend ((null):0, (null))