SDA> USB SHO UHCI HCDQH 89fde000
 Host Controller Queue Head
 ----------------------------------  ----------------
 Forward Link pointer                        89fde050
 Backward link pointer                       896e8948
 Structure size                                   048
 Structure type                                    8b
 Structure sub type                                ff
 QH physical address                 00000000001c0040
 Device BUS address                               000
 Endpoint number                                  000
 USBD Endpoint state                         00000000
 Pipe Address                                00000000
 Outstanding Requests                            0000
 Pointer to next HCDTD                       00000000
 Previous Horizontal QH VA                   89fde5f0
 Next Horizontal QH VA                       89fde2d0
 Vertical QH/TD link VA                      00000000
 Flags 1 Permanent, 2 delete pending         00000001
 Last data toggle in a completed PHYTD             00
 Next data toggle to use                           00
 Physical part of Queue Head
 Horizontal Link Pointer                     001c0312
    Queue Head
    Phys Address                             001c0310
 vertical Link Pointer                       00000001
    Terminate set
    Transmit Descriptor
    Phys Address                             00000000
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