WDF_INTERRUPT_EXTENDED_POLICY structure (wudfinterrupt.h)
[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]
The WDF_INTERRUPT_EXTENDED_POLICY structure contains information about an interrupt's policy, priority, affinity, and group.
Syntax
typedef struct _WDF_INTERRUPT_EXTENDED_POLICY {
ULONG Size;
WDF_INTERRUPT_POLICY Policy;
WDF_INTERRUPT_PRIORITY Priority;
GROUP_AFFINITY TargetProcessorSetAndGroup;
} WDF_INTERRUPT_EXTENDED_POLICY, *PWDF_INTERRUPT_EXTENDED_POLICY;
Members
Size
The size, in bytes, of this structure.
Policy
A WDF_INTERRUPT_POLICY-typed enumerator that specifies a processor affinity policy for the interrupt.
Priority
A WDF_INTERRUPT_PRIORITY-typed enumerator that specifies a priority for the interrupt.
TargetProcessorSetAndGroup
A GROUP_AFFINITY structure that specifies a processor group and a processor affinity mask within the group, if the Policy parameter is set to WdfIrqPolicySpecifiedProcessors. The GROUP_AFFINITY structure is defined in Winnt.h.
Remarks
The WDF_INTERRUPT_EXTENDED_POLICY structure is used as input for the IWDFInterrupt::SetExtendedPolicy method.
To initialize a WDF_INTERRUPT_EXTENDED_POLICY structure, your driver must call WDF_INTERRUPT_EXTENDED_POLICY_INIT.
Requirements
| Requirement | Value |
|---|---|
| Minimum UMDF version | 1.11 |
| Header | wudfinterrupt.h |