The newly released 2.0 version of USBTrace supports HID and Hub Class decoding. We are planning to add support for more device classes based on customer feedback in the near future releases. If you are interested in a particular device class, please send us a mail at email@example.com, and we will try to include it in the next version of USBTrace, our USB monitor software for windows.
Fig above shows USBTrace capture screen during Hub enumeration. The requests marked in red box are hub class requests. Detailed decoded information regarding class specific requests are shown in Info view.