!usb3kd.xhci_capability
Ekstensi !usb3kd.xhci_capability menampilkan kemampuan pengontrol host USB 3.0.
!usb3kd.xhci_capability DeviceExtension
Parameter
DeviceExtension
Alamat ekstensi perangkat untuk objek perangkat fungsional pengontrol host (FDO).
DLL
Usb3kd.dll
Keterangan
Output perintah !xhci_capability didasarkan pada struktur data yang dikelola oleh driver pengontrol host USB 3.0 (UsbXhci.sys). Untuk informasi selengkapnya tentang driver pengontrol host USB 3.0 dan driver lain di tumpukan USB, lihat Arsitektur Usb Driver Stack.
Contoh
Untuk mendapatkan alamat ekstensi perangkat, lihat output dari perintah !xhci_dumpall . Dalam contoh berikut, alamat ekstensi perangkat 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
...
Sekarang Anda dapat meneruskan alamat ekstensi perangkat ke perintah !xhci_capability .
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