Ŀ
     USBUHCI0$       Ŀ
    
Ŀ          Ŀ
     USBUHCI1$              USBMOUSE$       Ŀ
               
Ŀ           Ŀ          Ŀ
     USBUHCI2$               USBKBD$                   KBD$        
                     
                                Ŀ    
                                      PS2KBD$        
                                
