Standard USB Interface Descriptor (USB-IF naming conventions). More...

#include <StdDescriptors.h>

Data Fields
uint8_t	bLength
uint8_t	bDescriptorType
uint8_t	bInterfaceNumber
uint8_t	bAlternateSetting
uint8_t	bNumEndpoints
uint8_t	bInterfaceClass
uint8_t	bInterfaceSubClass
uint8_t	bInterfaceProtocol
uint8_t	iInterface

Detailed Description

Type define for a standard Interface Descriptor. This structure uses the relevant standard's given element names to ensure compatibility with the standard.

See also:: USB_Descriptor_Interface_t for the version of this type with non-standard LUFA specific element names.

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

Field Documentation

uint8_t USB_StdDescriptor_Interface_t::bAlternateSetting

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_StdDescriptor_Interface_t::bDescriptorType

Type of the descriptor, either a value in USB_DescriptorTypes_t or a value given by the specific class.

uint8_t USB_StdDescriptor_Interface_t::bInterfaceClass

Interface class ID.

uint8_t USB_StdDescriptor_Interface_t::bInterfaceNumber

Index of the interface in the current configuration.

uint8_t USB_StdDescriptor_Interface_t::bInterfaceProtocol

Interface protocol ID.

uint8_t USB_StdDescriptor_Interface_t::bInterfaceSubClass

Interface subclass ID.

uint8_t USB_StdDescriptor_Interface_t::bLength

Size of the descriptor, in bytes.