libusb_standard_request

type libusb_standard_request = (

  LIBUSB_REQUEST_GET_STATUS = $00,

  LIBUSB_REQUEST_CLEAR_FEATURE = $01,

  LIBUSB_REQUEST_SET_FEATURE = $03,

  LIBUSB_REQUEST_SET_ADDRESS = $05,

  LIBUSB_REQUEST_GET_DESCRIPTOR = $06,

  LIBUSB_REQUEST_SET_DESCRIPTOR = $07,

  LIBUSB_REQUEST_GET_CONFIGURATION = $08,

  LIBUSB_REQUEST_SET_CONFIGURATION = $09,

  LIBUSB_REQUEST_GET_INTERFACE = $0A,

  LIBUSB_REQUEST_SET_INTERFACE = $0B,

  LIBUSB_REQUEST_SYNCH_FRAME = $0C,

  LIBUSB_REQUEST_SET_SEL = $30,

  LIBUSB_SET_ISOCH_DELAY = $31

);