usb_interface_descriptor Struct Reference

Data Fields
uint8_t	bLength
	should be 9 bytes
uint8_t	bDescriptorType
	always USB_DESCRIPTOR_TYPE_INTERFACE
uint8_t	bInterfaceNumber
	number of this interface within the config
uint8_t	bAlternateSetting
	the alternate setting
uint8_t	bNumEndpoints
	number of used endpoints in this interface
uint8_t	bInterfaceClass
	interface class code (assigned by USB-IF)
uint8_t	bInterfaceSubClass
	interface subclass code (assigned by USB-IF)
uint8_t	bInterfaceProtocol
	protocol code (qualified by class/subclass)
uint8_t	iInterface
	string index describing this interface

Detailed Description

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USB Interface Descriptor (USB Specification, Rev 2.0, Section 9.6.5)

This descriptor contains information about a specific interface within an USB configuration. The interface descriptor defines an unique set of endpoints within the configuration.

Interface descriptors cannot directly be accesses by Get/SetDescriptor(), they are returned as a part of the configuration descriptor.

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

• include/usb/usb_descriptor.h