Motorola USB08 - page 215

Universal USB Device Driver (USBIO)
Programming Interface
USB08 Evaluation Board Designer Reference Manual
MOTOROLA Universal USB Device Driver (USBIO) 215
USBIO_REQUEST_RECIPIENT
The USBIO_REQUEST_RECIPIENT enumeration type contains values
that identify the recipient of an USB device request.
Definition typedef enum _USBIO_REQUEST_RECIPIENT{
RecipientDevice = 0,
RecipientInterface,
RecipientEndpoint,
RecipientOther
} USBIO_REQUEST_RECIPIENT;
Comments The meaning of the values is defined by the Universal Serial Bus
Specification 1.1, Chapter 9.