USB Device Layer Endpoint Read and Write Complete Event Data type. 

This data type defines the type of data that is returned by the Device Layer along with the USB_DEVICE_EVENT_ENDPOINT_WRITE_COMPLETE and USB_DEVICE_EVENT_ENDPOINT_READ_COMPLETE events.

typedef struct {
  USB_DEVICE_TRANSFER_HANDLE transferHandle;
  size_t length;
  USB_DEVICE_RESULT status;
} USB_DEVICE_EVENT_DATA_ENDPOINT_READ_COMPLETE, USB_DEVICE_EVENT_DATA_ENDPOINT_WRITE_COMPLETE;

None.