//定義IOCTL代碼

#define MYIOCTLDEVTYPE  FILE_DEVICE_VIDEO

#define IOCTL_CAMERA_DEVICE_LED_ON \
    CTL_CODE(MYIOCTLDEVTYPE, 0x100, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_CAMERA_DEVICE_LED_OFF \
    CTL_CODE(MYIOCTLDEVTYPE, 0x101, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_CAMERA_DEVICE_LED_READ \
    CTL_CODE(MYIOCTLDEVTYPE, 0x102, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_CAMERA_DEVICE_CAPTURE_ONE_FRAME \
    CTL_CODE(MYIOCTLDEVTYPE, 0x103, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_CAMERA_DEVICE_START_CAPTURE \
    CTL_CODE(MYIOCTLDEVTYPE, 0x104, METHOD_BUFFERED, FILE_ANY_ACCESS)

#define IOCTL_CAMERA_DEVICE_STOP_CAPTURE \
    CTL_CODE(MYIOCTLDEVTYPE, 0x105, METHOD_BUFFERED, FILE_ANY_ACCESS)