IOUSBHostCIDeviceSpeed Declarationtypedef enum IOUSBHostCIDeviceSpeed IOUSBHostCIDeviceSpeed; TopicsConstantsIOUSBHostCIDeviceSpeedFullIOUSBHostCIDeviceSpeedHighIOUSBHostCIDeviceSpeedLowIOUSBHostCIDeviceSpeedNoneIOUSBHostCIDeviceSpeedSuperIOUSBHostCIDeviceSpeedSuperPlusIOUSBHostCIDeviceSpeedSuperPlusBy2