USB Generic Descriptor

This descriptor is used to supply the device driver with all the necessary information upon initialization and connection to the usb manager.

A request for a configuration descriptor returns the configuration descriptor, all interface descriptors, and endpoint descriptors for all of the interfaces in a single request. The first interface descriptor follows the configuration descriptor. The endpoint descriptors for the first interface follow the first interface descriptor. If there are additional interfaces, their interface descriptor and endpoint descriptors follow the first interface’s endpoint descriptors.