The class code assigned by the USB-IF. A value of 0xFF will match any class code.
The protocol code assigned by the USB-IF. A value of 0xFF will match any protocol code.
The subclass code assigned by the USB-IF. A value of 0xFF will match any subclass code.
Product ID assigned by USB-IF. A value of 0xFFFF will match any Product ID.
Vendor ID assigned by USB-IF. A value of 0xFFFF will match any Vendor ID.