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USB_Descriptor_Interface_t Struct Reference
USB Descriptors

Standard USB Interface Descriptor (LUFA naming conventions). More...

`#include <StdDescriptors.h>`

## Data Fields
uint8_t | AlternateSetting
uint8_t | Class
USB_Descriptor_Header_t | Header
uint8_t | InterfaceNumber
uint8_t | InterfaceStrIndex
uint8_t | Protocol
uint8_t | SubClass
uint8_t | TotalEndpoints

## Detailed Description

Type define for a standard Interface Descriptor. This structure uses LUFA-specific element names to make each element's purpose clearer.

See also
  USB_StdDescriptor_Interface_t for the version of this type with standard element names.

Note
  Regardless of CPU architecture, these values should be stored as little endian.

## Field Documentation

uint8_t USB_Descriptor_Interface_t::AlternateSetting

Alternate setting for the interface number. The same interface number can have multiple alternate settings with different endpoint configurations, which can be selected by the host.

uint8_t USB_Descriptor_Interface_t::Class

Interface class ID.

USB_Descriptor_Header_t USB_Descriptor_Interface_t::Header

Descriptor header, including type and size.

uint8_t USB_Descriptor_Interface_t::InterfaceNumber

Index of the interface in the current configuration.

uint8_t USB_Descriptor_Interface_t::InterfaceStrIndex

Index of the string descriptor describing the interface.

uint8_t USB_Descriptor_Interface_t::Protocol

Interface protocol ID.

uint8_t USB_Descriptor_Interface_t::SubClass

Interface subclass ID.

uint8_t USB_Descriptor_Interface_t::TotalEndpoints

Total number of endpoints in the interface.

The documentation for this struct was generated from the following file:

- Drivers/USB/Core/StdDescriptors.h