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判斷裝置的狀態

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若要顯示整個裝置樹狀結構，請從根目錄開始，使用 ！devnode 0 1：

kd> !devnode 0 1

藉由檢查驅動程式或公開它的匯流排，識別您要搜尋的 devnode。

devnode 狀態旗標描述裝置的狀態。 如需詳細資訊，請參閱 裝置節點狀態旗標。

在 [偵錯隨插即用驅動程式擴充功能] 區段中的 ！devnode命令範例中，swenum 裝置是由 PnP 管理員所建立，因此已設定DNF_MADEUP (0x00000001) 旗標。

下列範例顯示 PCI 匯流排所建立的裝置。 此裝置未設定DNF_MADEUP旗標。

0: kd> !devnode 0xfffffa8004483490
DevNode 0xfffffa8004483490 for PDO 0xfffffa800448d060
  Parent 0xfffffa80036766d0   Sibling 0xfffffa8004482010   Child 0xfffffa80058ad720
  InstancePath is "PCI\VEN_8086&DEV_293C&SUBSYS_2819103C&REV_02\3&21436425&0&D7"
  ServiceName is "usbehci"
  State = DeviceNodeStarted (0x308)
  Previous State = DeviceNodeEnumerateCompletion (0x30d)
  StateHistory[09] = DeviceNodeEnumerateCompletion (0x30d)
  StateHistory[08] = DeviceNodeEnumeratePending (0x30c)
  StateHistory[07] = DeviceNodeStarted (0x308)
  StateHistory[06] = DeviceNodeStartPostWork (0x307)
  ...
  Flags (0x6c0000f0)  DNF_ENUMERATED, DNF_IDS_QUERIED, 
                      DNF_HAS_BOOT_CONFIG, DNF_BOOT_CONFIG_RESERVED, 
                      DNF_NO_LOWER_DEVICE_FILTERS, DNF_NO_LOWER_CLASS_FILTERS, 
                      DNF_NO_UPPER_DEVICE_FILTERS, DNF_NO_UPPER_CLASS_FILTERS
  CapabilityFlags (0x00002000)  WakeFromD3

範例

  1. 裝置的 devnode 資源不足：
kd> !devnode 0xff0d06e8 6

DevNode 0xff0d06e8 for PDO 0xff0d07d0 at level 0x3
  Parent 0xff0d1408   Sibling 0000000000   Child 0000000000
  InterfaceType 0xffffffff  Bus Number 0xfffffff0
  InstancePath is "ISAPNP\SUP2171\00000067"
  ServiceName is "Modem"
  TargetDeviceNotify List - f 0xff0d074c  b 0xff0d074c
  Flags (..........)  DNF_PROCESSED, DNF_ENUMERATED,
                      DNF_INSUFFICIENT_RESOURCES, DNF_ADDED,
                      DNF_HAS_BOOT_CONFIG
                      Unknown flags 0x40000000

  IoResList at 0xe133e7a8 : Interface 0x1  Bus 0  Slot 0
    Alternative 0 (Version 1.1)
      Preferred Descriptor 0 - NonArbitrated/ConfigData (0x80) Shared (0x3)
        Flags (0000) -
        Data:              : 0x0 0x61004d 0x680063
      Preferred Descriptor 1 - Port (0x1) Undetermined Sharing (0)
        Flags (0x11) - PORT_IO 16_BIT_DECODE
        0x000008 byte range with alignment 0x000001
        2f8 - 0x2ff
      Preferred Descriptor 2 - Interrupt (0x2) Shared (0x3)
        Flags (0x01) - LATCHED
        0x3 - 0x3

請注意，devnode 沒有 CM 資源清單，因為它未啟動，而且未使用資源，但已要求資源。

  1. 請注意，此 devnode 中沒有針對舊版驅動程式儲存的資源。
kd> !devnode 0xff0d1648 6

DevNode 0xff0d1648 for PDO 0xff0d22d0 at level 0x2
  Parent 0xff0d2e28   Sibling 0xff0d1588   Child 0000000000
  InterfaceType 0xffffffff  Bus Number 0xffffffff
  InstancePath is "PCI\VEN_102B&DEV_0519\0&60"
  ServiceName is "mga_mil"
  TargetDeviceNotify List - f 0xff0d16ac  b 0xff0d16ac
  Flags (0x6000500b)  DNF_PROCESSED, DNF_STARTED,
                      DNF_ENUMERATED, DNF_ADDED,
                      DNF_LEGACY_DRIVER, DNF_HAS_BOOT_CONFIG
                      Unknown flags 0x40000000

您可以擷取下列裝置類型的驅動程式裝置物件清單：

kd> !drvobj mga_mil

Driver object (ff0bbc10) is for:
 \Driver\mga_mil
Driver Extension List: (id , addr)

Device Object list:
ff0bb900

然後，您可以傾印此裝置物件的資料：

kd> !devobj ff0bb900

Device object (ff0bb900) is for:
 Video0 \Driver\mga_mil DriverObject ff0bbc10
Current Irp 00000000 RefCount 1 Type 00000023 Flags 0000204c
DevExt ff0bb9b8 DevNode ff0bb808
Device queue is not busy.

最後，您可以傾印裝置物件所參考的 devnode。 此 devnode 不會連結在裝置樹狀結構中。 它代表用來宣告舊版裝置資源的「虛擬開發節點」。 請注意指出裝置為回報偵測到裝置的DNF_RESOURCE_REPORTED旗標。

kd> !devnode ff0bb808 6

DevNode 0xff0bb808 for PDO 0xff0bb900 at level 0xffffffff
  Parent 0xff0daf48   Sibling 0000000000   Child 0000000000
  InterfaceType 0xffffffff  Bus Number 0xffffffff
  TargetDeviceNotify List - f 0xff0bb86c  b 0xff0bb86c
  Flags (0x00000400)  DNF_RESOURCE_REPORTED
  CmResourceList at 0xe12474e8  Version 0.0  Interface 0x5  Bus #0
    Entry 0 - Port (0x1) Shared (0x3)
      Flags (0x01) - PORT_MEMORY PORT_IO
      Range starts at 0x3c0 for 0x10 bytes
    Entry 1 - Port (0x1) Shared (0x3)
      Flags (0x01) - PORT_MEMORY PORT_IO
      Range starts at 0x3d4 for 0x8 bytes
    Entry 2 - Port (0x1) Shared (0x3)
      Flags (0x01) - PORT_MEMORY PORT_IO
      Range starts at 0x3de for 0x2 bytes
    Entry 3 - Memory (0x3) Device Exclusive (0x1)
      Flags (0000) - READ_WRITE
      Range starts at 0x0000000040000000 for 0x4000 bytes
    Entry 4 - Memory (0x3) Device Exclusive (0x1)
      Flags (0000) - READ_WRITE
      Range starts at 0x0000000040800000 for 0x800000 bytes