:~$ sudo lspci -vv | grep -A50 'NEC Corporation uPD720200 USB 3.0 Host Controller'05:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI])
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f1c00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
Vector table: BAR=0 offset=00001000
PBA: BAR=0 offset=00001080
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <4us, L1 unlimited
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
Capabilities: [150 v1] #18
Kernel driver in use: xhci_hcd
Kernel modules: xhci-hcd
0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 07) (prog-if 01)
Subsystem: Lenovo Device 21da
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f1400000 (32-bit, non-prefetchable) [size=256]
:~$ dmesg | grep xhci
[ 1.927963] xhci_hcd 0000:05:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 1.927990] xhci_hcd 0000:05:00.0: setting latency timer to 64
[ 1.927995] xhci_hcd 0000:05:00.0: xHCI Host Controller
[ 1.928048] xhci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 3
[ 1.928229] xhci_hcd 0000:05:00.0: irq 19, io mem 0xf1c00000
[ 1.928297] xhci_hcd 0000:05:00.0: irq 41 for MSI/MSI-X
[ 1.928302] xhci_hcd 0000:05:00.0: irq 42 for MSI/MSI-X
[ 1.928307] xhci_hcd 0000:05:00.0: irq 43 for MSI/MSI-X
[ 1.928311] xhci_hcd 0000:05:00.0: irq 44 for MSI/MSI-X
[ 1.928316] xhci_hcd 0000:05:00.0: irq 45 for MSI/MSI-X
[ 1.928511] xHCI xhci_add_endpoint called for root hub
[ 1.928513] xHCI xhci_check_bandwidth called for root hub
[ 1.928619] xhci_hcd 0000:05:00.0: xHCI Host Controller
[ 1.928659] xhci_hcd 0000:05:00.0: new USB bus registered, assigned bus number 4
[ 1.933099] xHCI xhci_add_endpoint called for root hub
[ 1.933102] xHCI xhci_check_bandwidth called for root hub
[ 2.610160] usb 3-1: new full speed USB device number 2 using xhci_hcd