Code:
[ 1.352012] xhci-hcd xhci-hcd.8.auto: xHCI Host Controller
[ 1.352917] xhci-hcd xhci-hcd.8.auto: new USB bus registered, assigned bus number 3
[ 1.353925] xhci-hcd xhci-hcd.8.auto: hcc params 0x0220fe64 hci version 0x110 quirks 0x02030010
[ 1.354941] xhci-hcd xhci-hcd.8.auto: irq 226, io mem 0xfe800000
[ 1.355797] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.356557] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.357372] usb usb3: Product: xHCI Host Controller
[ 1.357931] usb usb3: Manufacturer: Linux 4.4.143 xhci-hcd
[ 1.358543] usb usb3: SerialNumber: xhci-hcd.8.auto
[ 1.359676] hub 3-0:1.0: USB hub found
[ 1.360143] hub 3-0:1.0: 1 port detected
[ 1.360907] xhci-hcd xhci-hcd.8.auto: xHCI Host Controller
[ 1.361702] xhci-hcd xhci-hcd.8.auto: new USB bus registered, assigned bus number 4
[ 1.362613] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[ 1.363622] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[ 1.364394] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.365206] usb usb4: Product: xHCI Host Controller
[ 1.371283] usb usb4: Manufacturer: Linux 4.4.143 xhci-hcd
[ 1.377381] usb usb4: SerialNumber: xhci-hcd.8.auto
[ 1.383998] hub 4-0:1.0: USB hub found
[ 1.389876] hub 4-0:1.0: 1 port detected
[ 1.397017] xhci-hcd xhci-hcd.8.auto: remove, state 1
[ 1.402020] usb usb4: USB disconnect, device number 1
[ 1.427810] xhci-hcd xhci-hcd.8.auto: Host not halted after 16000 microseconds.
[ 1.432979] xhci-hcd xhci-hcd.8.auto: Host controller not halted, aborting reset.
[ 1.438125] xhci-hcd xhci-hcd.8.auto: USB bus 4 deregistered
[ 1.443179] xhci-hcd xhci-hcd.8.auto: remove, state 1
[ 1.447953] usb usb3: USB disconnect, device number 1
[ 1.453175] xhci-hcd xhci-hcd.8.auto: USB bus 3 deregistered
[ 1.464310] xhci-hcd xhci-hcd.9.auto: xHCI Host Controller
[ 1.470741] xhci-hcd xhci-hcd.9.auto: new USB bus registered, assigned bus number 3
[ 1.477125] xhci-hcd xhci-hcd.9.auto: hcc params 0x0220fe64 hci version 0x110 quirks 0x02030010
[ 1.483458] xhci-hcd xhci-hcd.9.auto: irq 227, io mem 0xfe900000
[ 1.487011] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.490328] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.493644] usb usb3: Product: xHCI Host Controller
[ 1.496725] usb usb3: Manufacturer: Linux 4.4.143 xhci-hcd
[ 1.499868] usb usb3: SerialNumber: xhci-hcd.9.auto
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