Name	Description
audio
bluetooth
communication
hid
hid_bootable
hub
imaging
other
pda
physical
printer
security
smart_card
storage
unknownFamily
vendor_specific
video
wireless
wusb

         <simpleType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VirtualMachineUsbInfoFamily">
            <restriction base="xsd:string">
               <enumeration value="audio"/>
               <enumeration value="hid"/>
               <enumeration value="hid_bootable"/>
               <enumeration value="physical"/>
               <enumeration value="communication"/>
               <enumeration value="imaging"/>
               <enumeration value="printer"/>
               <enumeration value="storage"/>
               <enumeration value="hub"/>
               <enumeration value="smart_card"/>
               <enumeration value="security"/>
               <enumeration value="video"/>
               <enumeration value="wireless"/>
               <enumeration value="bluetooth"/>
               <enumeration value="wusb"/>
               <enumeration value="pda"/>
               <enumeration value="vendor_specific"/>
               <enumeration value="other"/>
               <enumeration value="unknownFamily"/>
            </restriction>
         </simpleType>

Enum - VirtualMachineUsbInfoFamily(vim.vm.UsbInfo.Family)

Enum Description