alf@alf-asus:~$ dmesg | grep usb
[ 0.243288] usbcore: registered new interface driver usbfs
[ 0.243306] usbcore: registered new interface driver hub
[ 0.243355] usbcore: registered new device driver usb
[ 0.819404] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.819408] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.819412] usb usb1: Product: xHCI Host Controller
[ 0.819415] usb usb1: Manufacturer: Linux 3.13.0-41-generic xhci_hcd
[ 0.819418] usb usb1: SerialNumber: 0000:00:14.0
[ 0.821100] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[ 0.821104] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.821108] usb usb2: Product: xHCI Host Controller
[ 0.821111] usb usb2: Manufacturer: Linux 3.13.0-41-generic xhci_hcd
[ 0.821114] usb usb2: SerialNumber: 0000:00:14.0
[ 1.133023] usb 1-1: new low-speed USB device number 2 using xhci_hcd
[ 1.152761] usb 1-1: New USB device found, idVendor=046d, idProduct=c05a
[ 1.152782] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1.152797] usb 1-1: Product: USB Optical Mouse
[ 1.152810] usb 1-1: Manufacturer: Logitech
[ 1.153100] usb 1-1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 1.164233] usbcore: registered new interface driver usbhid
[ 1.164237] usbhid: USB HID core driver
[ 1.166813] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/input/input13
[ 1.167199] hid-generic 0003:046D:C05A.0001: input,hidraw0: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:14.0-1/input0
[ 1.321059] usb 1-3: new high-speed USB device number 3 using xhci_hcd
[ 1.370247] usb 1-3: New USB device found, idVendor=0bda, idProduct=5603
[ 1.370270] usb 1-3: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[ 1.370286] usb 1-3: Product: USB2.0 HD UVC WebCam
[ 1.370299] usb 1-3: Manufacturer: Generic
[ 1.370313] usb 1-3: SerialNumber: 0x0001
[ 1.485151] usb 1-4: new high-speed USB device number 4 using xhci_hcd
[ 1.503463] usb 1-4: New USB device found, idVendor=05e3, idProduct=0608
[ 1.503484] usb 1-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 1.503499] usb 1-4: Product: USB2.0 Hub
[ 1.777489] usb 1-4.1: new full-speed USB device number 5 using xhci_hcd
[ 1.795407] usb 1-4.1: New USB device found, idVendor=13d3, idProduct=3408
[ 1.795411] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 13.395632] usbcore: registered new interface driver btusb
[ 13.831551] input: USB2.0 HD UVC WebCam as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/input/input14
[ 13.831668] usbcore: registered new interface driver uvcvideo
[ 15.938118] usb 1-4.1: USB disconnect, device number 5
[ 425.211821] usb 1-4.1: new full-speed USB device number 6 using xhci_hcd
[ 425.229237] usb 1-4.1: New USB device found, idVendor=13d3, idProduct=3408
[ 425.229253] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 425.615125] usb 1-4.1: USB disconnect, device number 6
[ 431.175846] usb 1-4.1: new full-speed USB device number 7 using xhci_hcd
[ 431.193279] usb 1-4.1: New USB device found, idVendor=13d3, idProduct=3408
[ 431.193287] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 431.508194] usb 1-4.1: USB disconnect, device number 7
[ 435.144831] usb 1-4.1: new full-speed USB device number 8 using xhci_hcd
[ 435.161909] usb 1-4.1: New USB device found, idVendor=13d3, idProduct=3408
[ 435.161919] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 435.351044] usb 1-4.1: USB disconnect, device number 8
[ 7192.712255] usb 1-3: reset high-speed USB device number 3 using xhci_hcd
[ 7192.840051] usb 1-4: reset high-speed USB device number 4 using xhci_hcd
[ 7195.206234] usb 1-1: USB disconnect, device number 2
[ 7195.425948] usb 1-4.1: new full-speed USB device number 9 using xhci_hcd
[ 7195.447169] usb 1-4.1: New USB device found, idVendor=13d3, idProduct=3408
[ 7195.447180] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 7195.689974] usb 1-1: new low-speed USB device number 10 using xhci_hcd
[ 7195.713622] usb 1-1: New USB device found, idVendor=046d, idProduct=c05a
[ 7195.713632] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 7195.713637] usb 1-1: Product: USB Optical Mouse
[ 7195.713642] usb 1-1: Manufacturer: Logitech
[ 7195.713805] usb 1-1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
[ 7195.720544] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/input/input25
[ 7195.720817] hid-generic 0003:046D:C05A.0002: input,hidraw0: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:14.0-1/input0