PCSTREAMRESOURCE_DESCRIPTOR structure (portcls.h)

PCSTREAMRESOURCE_DESCRIPTOR defines the stream resource. Use PCSTREAMRESOURCE_DESCRIPTOR_INIT to correctly initialize this structure.

Syntax

typedef struct _PCSTREAMRESOURCE_DESCRIPTOR {
  ULONG                Size;
  ULONG                Flags;
  PDEVICE_OBJECT       Pdo;
  PcStreamResourceType Type;
  union {
    struct {
      ULONG Version;
      PVOID Generic;
    } Interrupt;
    PETHREAD Thread;
    PVOID    ResourceSet;
  } Resource;
} PCSTREAMRESOURCE_DESCRIPTOR, *PPCSTREAMRESOURCE_DESCRIPTOR;

Members

Size

This field is init to the size of the struct.

Flags

Reserved for future use. Set to zero.

Pdo

The physical device object of the stack that created this resource.

Type

The union of the different stream resource types.

Resource

Resource.Interrupt

Resource.Interrupt.Version

Resource.Interrupt.Generic

Resource.Thread

Thread.

Resource.ResourceSet

Reserved for future use, set to NULL. Only device-scoped resources are supported at this time.

Remarks

Stream resources are any resources used by the audio driver to process audio streams or ensure audio data flow. Two type of stream resources are supported: interrupts and driver-owned threads. Audio drivers should register a resource after creating the resource, and unregister the resource before deleted it.

Requirements

Requirement	Value
Minimum supported client	Windows 10
Minimum supported server	Windows Server 2016
Header	portcls.h

See also

PcStreamResourceType