2.2.3.10 USB_DEVICE_TRANSFER_HANDLE_INVALID Macro
C
#define USB_DEVICE_TRANSFER_HANDLE_INVALID
Summary
USB Device Layer Invalid Endpoint Data Transfer Handle
This constant defines the value that is returned by the USB_DEVICE_EndpointRead() and USB_DEVICE_EndpointWrite() functions, as a transfer handle, when the function is not successful.