!wdfkd.wdfinterrupt

The !wdfkd.wdfinterrupt extension displays information about a WDFINTERRUPT object.

!wdfkd.wdfinterrupt Handle [Flags]

Parameters

Handle

A handle to a WDFINTERRUPT object.

Flags

Optional. Specifies the kind of information to display. Flags can be any combination of the following bits. The default value is 0x0.

Bit 0 (0x1)

Displays the interrupt service routines (ISRs) for the interrupt dispatch table (IDT) associated with this WDFINTERRUPT object. Setting this flag is equivalent to following the !wdfinterrupt extension with the !idt extension.

DLL

Wdfkd.dll

Frameworks

KMDF 1, UMDF 2

Additional Information

For more information, see Kernel-Mode Driver Framework Debugging.

Remarks

The following example shows the output of the !wdfinterrupt extension with bit 0 set in the Flags parameter (so the output displays information about the IDT).


kd> !wdfkd.wdfinterrupt 0x7a988698  1 

Dumping WDFINTERRUPT 0x7a988698
=========================
  Interrupt Type: Line-based, Connected, Enabled
  Vector: 0xa1 (!idt 0xa1)
  Irql: 0x9
  Mode: LevelSensitive
  Polarity: WdfInterruptPolarityUnknown
  ShareDisposition: CmResourceShareShared
  FloatingSave: FALSE
  Interrupt Priority Policy: WdfIrqPriorityUndefined
  Processor Affinity Policy: WdfIrqPolicyOneCloseProcessor
  Processor Group: 0
  Processor Affinity: 0x3

  dt nt!KINTERRUPT 0x8594eb28

  EvtInterruptIsr: 1394ohci!Interrupt::WdfEvtInterruptIsr (0x8d580552)
  EvtInterruptDpc: 1394ohci!Interrupt::WdfEvtInterruptDpc (0x8d580682)

Dumping IDT:

a1:          85167a58 ndis!ndisMiniportIsr (KINTERRUPT 85167a00)
                                    Wdf01000!FxInterrupt::_InterruptThunk (KINTERRUPT 85987500)

To get ISR from KINTERRUPT: 
   dt <KINTERRUPT> nt!KINTERRUPT ServiceContext
   dt <ServiceContext> wdf01000!FxInterrupt m_EvtInterruptIsr

In the preceding example, the display concludes with two suggested dt (Display Type) commands that can be used to display additional data.

 

 

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