AVC_FUNCTION_PEER_DO_LIST

The AVC_FUNCTION_PEER_DO_LIST function code locates all nonvirtual avc.sys instances.

I/O Status Block

If successful, the AV/C protocol driver sets Irp->IoStatus.Status to STATUS_SUCCESS.

Possible other return values include:

Return value	Description
STATUS_INSUFFICIENT_RESOURCES	Could not obtain space for the list of device object references.

Comments

This function uses the PeerList member of the AVC_MULTIFUNC_IRB structure as shown below.

typedef struct _AVC_MULTIFUNC_IRB {
  AVC_IRB  Common;
  union {
    .
    .
    .
    AVC_PEER_DO_LIST PeerList;
 .
    .
    .
  };
} AVC_MULTIFUNC_IRB, *PAVC_MULTIFUNC_IRB;

Requirements

Headers: Declared in avc.h. Include avc.h.

AVC_MULTIFUNC_IRB Input

Common
The Function submember of this member must be set to AVC_FUNCTION_PEER_DO_LIST from the AVC_FUNCTION enumeration.

PeerList
Specifies a list of all nonvirtual (peer) instances of avc.sys.

The caller may submit GUID_AVC_CLASS Device Interface requests through any of the objects returned in the object list. The caller must release the references to these objects (through ObDereferenceObject), and free the memory containing the list (through ExFreePool) when finished.

This function code may be called at IRQL >= DISPATCH_LEVEL.

See also

AVC_MULTIFUNC_IRB

AVC_PEER_DO_LIST

AVC_FUNCTION

DEVICE_OBJECT

ObDereferenceObject

ExFreePool