Standard USB Interface Association Descriptor (USB-IF naming conventions). More...
#include <StdDescriptors.h>
Data Fields | |
uint8_t | bDescriptorType |
uint8_t | bFirstInterface |
uint8_t | bFunctionClass |
uint8_t | bFunctionProtocol |
uint8_t | bFunctionSubClass |
uint8_t | bInterfaceCount |
uint8_t | bLength |
uint8_t | iFunction |
Type define for a standard Interface Association Descriptor. This structure uses the relevant standard's given element names to ensure compatibility with the standard.
This descriptor has been added as a supplement to the USB2.0 standard, in the ECN located at http://www.usb.org/developers/docs/InterfaceAssociationDescriptor_ecn.pdf. It allows composite devices with multiple interfaces related to the same function to have the multiple interfaces bound together at the point of enumeration, loading one generic driver for all the interfaces in the single function. Read the ECN for more information.
uint8_t USB_StdDescriptor_Interface_Association_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_Association_t::bFirstInterface |
Index of the first associated interface.
uint8_t USB_StdDescriptor_Interface_Association_t::bFunctionClass |
Interface class ID.
uint8_t USB_StdDescriptor_Interface_Association_t::bFunctionProtocol |
Interface protocol ID.
uint8_t USB_StdDescriptor_Interface_Association_t::bFunctionSubClass |
Interface subclass ID.
uint8_t USB_StdDescriptor_Interface_Association_t::bInterfaceCount |
Total number of associated interfaces.
uint8_t USB_StdDescriptor_Interface_Association_t::bLength |
Size of the descriptor, in bytes.
uint8_t USB_StdDescriptor_Interface_Association_t::iFunction |
Index of the string descriptor describing the interface association.