B184.108.40.206 Devices meet requirements in related USB device class specifications
[USB-0088; SDG3:60; see also FAQ B220.127.116.11]
B18.104.22.168 Hub or device that supports USB 2.0 complies with USB 2.0 Specification
B22.214.171.124 USB devices install and perform at least some functions expected by end users for that class of device, without preloading software
Without loading a specific driver, USB devices having native operating system class driver support provide the typical functions supported by devices within each class, as defined in the USB device class specifications. After device specific driver installation, the device must be fully functional.
Driver packages can force re-enumeration by pointing to their INF file; see UpdateDriverForPlugAndPlayDevices in the Windows DDK for information.
B126.96.36.199 USB hubs are self-powered
This requirement does not apply for hubs integrated into USB keyboards.
Mobile PC Note: This requirement does not apply for hubs integrated into mobile systems.