pub unsafe extern "C" fn modbus_mapping_new_start_address(
start_bits: c_uint,
nb_bits: c_uint,
start_input_bits: c_uint,
nb_input_bits: c_uint,
start_registers: c_uint,
nb_registers: c_uint,
start_input_registers: c_uint,
nb_input_registers: c_uint,
) -> *mut modbus_mapping_t