UsbInterfaceDescriptor

typedef struct UsbInterfaceDescriptor {...} __attribute__((packed)) UsbInterfaceDescriptor

Overview

Defines standard interface descriptors, which correspond to Standard Interface Descriptor in the USB protocol.

Since: 10

Related module: UsbDdk

Header file: usb_ddk_types.h

Name	Description
uint8_t bLength	Size of the descriptor, in bytes.
uint8_t bDescriptorType	Descriptor type.
uint8_t bInterfaceNumber	Interface ID.
uint8_t bAlternateSetting	Value used to select the alternate setting of the interface.
uint8_t bNumEndpoints	Number of endpoints (excluding endpoint 0) used by the interface.
uint8_t bInterfaceClass	Interface class code allocated by the USB-IF.
uint8_t bInterfaceSubClass	Interface subclass code allocated by the USB-IF. The value is limited by that of bInterfaceClass.
uint8_t bInterfaceProtocol	Interface protocol code allocated by the USB-IF. The value is limited by that of bInterfaceClass and bInterfaceSubClass.
uint8_t iInterface	Index of the string descriptor that describes the interface.