casper:/home/casper# lshw | grep usb
          capabilities: isa pci pnp apm upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int17printer int10video acpi usb agp ls120boot zipboot biosbootspecification
        *-usb:0
           *-usbhost
                bus info: usb@3
                logical name: usb3
                capabilities: usb-1.10
        *-usb:1
           *-usbhost
                bus info: usb@2
                logical name: usb2
                capabilities: usb-1.10
              *-usb UNCLAIMED
                   bus info: usb@2:2
                   capabilities: usb-1.10
        *-usb:2
           *-usbhost
                bus info: usb@1
                logical name: usb1
                capabilities: usb-1.10
              *-usb
                   bus info: usb@1:2
                   capabilities: usb-1.10
                   configuration: driver=usbhid maxpower=100mA speed=1.5MB/s
        *-usb:3
           *-usbhost
                bus info: usb@4
                logical name: usb4
                capabilities: usb-2.00