IRB_REQ_ISOCH_FREE_RESOURCES - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// 1394.h

typedef struct _IRB_REQ_ISOCH_FREE_RESOURCES {
  HANDLE hResource;
} IRB_REQ_ISOCH_FREE_RESOURCES;

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Windows Driver Kit DDI reference (ns-1394-_irb_req_isoch_free_resources)

_IRB_REQ_ISOCH_FREE_RESOURCES structure

Description

This structure contains the fields necessary to carry out a IsochFreeResources request.

Members

hResource

Specifies the resource handle to release.

Remarks

The bus driver sets Irp->IoStatus.Status to STATUS_SUCCESS on success. All isochronous buffers that were attached to this resource must be detached prior to issuing this call. If a device driver attempts to free a resource handle with isochronous buffers still attached to it, the handle is not freed and the bus driver returns STATUS_ACCESS_DENIED instead.

View the official Windows Driver Kit DDI reference

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