seryi@seryi-laptop:~$ dmesg | grep usb
[    1.515973] usbcore: registered new interface driver usbfs
[    1.516003] usbcore: registered new interface driver hub
[    1.519798] usbcore: registered new device driver usb
[    1.845164] usb 1-4: new high-speed USB device number 2 using ehci-pci
[    2.091783] usb 2-1: new high-speed USB device number 2 using ehci-pci
[   10.743900] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input14
[   10.744371] usbcore: registered new interface driver uvcvideo
[   11.049527] usbcore: registered new interface driver rts5139
[ 3869.467704] usb 2-1: reset high-speed USB device number 2 using ehci-pci
[ 3871.638338] usb 1-4: USB disconnect, device number 2
[ 3871.872055] usb 1-4: new high-speed USB device number 3 using ehci-pci
[ 3872.019117] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input15
[12396.091010] usb 2-1: reset high-speed USB device number 2 using ehci-pci
[12398.266133] usb 1-4: USB disconnect, device number 3
[12398.495199] usb 1-4: new high-speed USB device number 4 using ehci-pci
[12398.640511] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input16
[12398.641271] usb 2-1: USB disconnect, device number 2
[12399.118518] usb 2-1: new high-speed USB device number 3 using ehci-pci
[12399.498962] usb 4-1: new full-speed USB device number 2 using ohci-pci
[12399.647621] usb 4-1: not running at top speed; connect to a high speed hub
[15562.390004] usb 4-1: reset full-speed USB device number 2 using ohci-pci
[15564.494825] usb 1-4: USB disconnect, device number 4
[15564.724181] usb 1-4: new high-speed USB device number 5 using ehci-pci
[15564.881901] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input17
[17926.302047] usb 4-1: reset full-speed USB device number 2 using ohci-pci
[17928.459063] usb 1-4: USB disconnect, device number 5
[17928.709279] usb 1-4: new high-speed USB device number 6 using ehci-pci
[17928.861552] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input18
[32197.735957] usb 4-1: reset full-speed USB device number 2 using ohci-pci
[32199.912477] usb 1-4: USB disconnect, device number 6
[32200.147092] usb 1-4: new high-speed USB device number 7 using ehci-pci
[32200.294416] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input19
[48128.656504] usb 4-1: reset full-speed USB device number 2 using ohci-pci
[48130.783509] usb 1-4: USB disconnect, device number 7
[48131.039301] usb 1-4: new high-speed USB device number 8 using ehci-pci
[48131.181444] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input20
[68865.013366] usb 4-1: reset full-speed USB device number 2 using ohci-pci
[68867.163402] usb 1-4: USB disconnect, device number 8
[68867.394510] usb 1-4: new high-speed USB device number 9 using ehci-pci
[68867.538661] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:12.2/usb1/1-4/1-4:1.0/input/input21