通过

!usb3kd.xhci_capability

  • 项目

!usb3kd.xhci_capability 扩展显示 USB 3.0 主机控制器的功能。

!usb3kd.xhci_capability DeviceExtension

参数

DeviceExtension
主机控制器功能设备对象 (FDO) 的设备扩展地址。

DLL

Usb3kd.dll

注解

!xhci_capability 命令的输出基于 USB 3.0 主机控制器驱动程序 (UsbXhci.sys) 维护的数据结构。 有关 USB 3.0 主机控制器驱动程序和 USB 堆栈中的其他驱动程序的更多信息，请参阅 USB 驱动程序堆栈体系结构。

示例

若要获取设备扩展的地址，请查看 !xhci_dumpall 命令的输出。 在以下示例中，设备扩展的地址为 0xfffffa800536e2d0。

3: kd> !xhci_dumpall

## Dumping all the XHCI controllers - DrvObj 0xfffffa80053072f0
------------------------------------------------------------
1)  ... - PCI: VendorId ... DeviceId ... RevisionId ... Firmware ...

    dt USBXHCI!_CONTROLLER_DATA 0xfffffa80052f20c0
    !rcdrlogdump USBXHCI -a 0xfffffa8005068520
    !rcdrlogdump USBXHCI -a 0xfffffa8004e8b9a0 (rundown)
    !wdfdevice 0x57ffac91fd8
    !xhci_capability 0xfffffa800536e2d0
    ...

现在可以将设备扩展的地址传递给 !xhci_capability 命令。

3: kd> !xhci_capability 0xfffffa800536e2d0

## Controller Capabilities
-----------------------
    dt USBXHCI!_REGISTER_DATA 0xfffffa8005362c00
    dt USBXHCI!_CAPABILITY_REGISTERS 0xfffff880046a8000
    MajorRevision.MinorRevision = 0.96
    Device Slots: 32
    Interrupters: 8
    Ports: 4
    IsochSchedulingThreshold: 1
    EventRingSegmentTableMax: 1 (2^ERST = 2)
    ScratchpadRestore: OFF
    MaxScratchpadBuffers: 0
    U1DeviceExitLatency: 0
    U2DeviceExitLatency: 0
    AddressingCapability: 64 bit
    BwNegotiationCapability: ON
    ContextSize: 32 bytes
    PortPowerControl: ON
    PortIndicators: OFF
    LightHCResetCapability: OFF
    LatencyToleranceMessagingCapability: ON
    NoSecondarySidSupport: TRUE
    MaximumPrimaryStreamArraySize = 4 ( 2^(MaxPSASize+1) = 32 )
    XhciExtendedCapabilities:
        [1] USB_LEGACY_SUPPORT: dt _USBLEGSUP 0xfffff880046a8500
        [2] Supported Protocol 0xfffff880046a8510, Version 3.0, Offset 1, Count 2, HighSpeedOnly OFF, IntegratedHub OFF, HardwareLPM OFF
        [3] Supported Protocol 0xfffff880046a8520, Version 2.0, Offset 3, Count 2, HighSpeedOnly OFF, IntegratedHub OFF, HardwareLPM OFF

## Software Supported Capabilities
-------------------------------
    DeviceSlots: 32
    Interrupters: 1
    Ports: 4
    MaxEventRingSegments: 2
    U1DeviceExitLatency: 0
    U2DeviceExitLatency: 0
    DeviceFlags:
        IgnoreBiosHandoffFailure
        SetLinkTrbChainBit
        UseSingleInterrupter
        DisableIdlePowerManagement

另请参阅

USB 3.0 扩展

!xhci_dumpall

通用串行总线 (USB) 驱动程序