// usbfnbase.h

typedef struct _ALTERNATE_INTERFACE {
  USHORT InterfaceNumber;
  USHORT AlternateInterfaceNumber;
} ALTERNATE_INTERFACE, *PALTERNATE_INTERFACE;
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Windows Driver Kit DDI reference (ns-usbfnbase-_alternate_interface)

_ALTERNATE_INTERFACE structure

Description

The ALTERNATE_INTERFACE structure provides information about alternate settings for a Universal Serial Bus (USB) interface.

Members

`InterfaceNumber`

The index number for theUSB interface setting.

`AlternateInterfaceNumber`

The index number for the alternate USB interface setting.

ALTERNATE_INTERFACE - NtDoc