pub unsafe extern "C" fn _xtos_set_interrupt_handler_arg(
n: c_int,
f: _xtos_handler,
arg: *mut c_void,
) -> _xtos_handlerpub unsafe extern "C" fn _xtos_set_interrupt_handler_arg(
n: c_int,
f: _xtos_handler,
arg: *mut c_void,
) -> _xtos_handler