ardupilot/libraries/AP_HAL_Empty/AP_HAL_Empty_Namespace.h

#pragma once

namespace Empty {
    class AnalogIn;
    class AnalogSource;
    class DigitalSource;
    class GPIO;
    class I2CDriver;
    class OpticalFlow;
    class PrivateMember;
    class RCInput;
    class RCOutput;
    class Scheduler;
    class Semaphore;
    class SPIDeviceDriver;
    class SPIDeviceManager;
    class Storage;
    class UARTDriver;
    class Util;
}