IoGetNextIrpStackLocation function (wdm.h)
The IoGetNextIrpStackLocation routine gives a higher level driver access to the next-lower driver's I/O stack location in an IRP so the caller can set it up for the lower driver.
Syntax
__drv_aliasesMem PIO_STACK_LOCATION IoGetNextIrpStackLocation(
[in] PIRP Irp
);
Parameters
[in] Irp
A pointer to the IRP.
Return value
IoGetNextIrpStackLocation returns a pointer to the next-lower-level driver's I/O stack location in the given IRP.
Remarks
Each driver that passes IRPs on to lower drivers must set up the stack location for the next lower driver. A driver calls IoGetNextIrpStackLocation to get a pointer to the next-lower driver's I/O stack location.
If a driver is passing the same parameters that it received to the next-lower driver, it should call IoCopyCurrentIrpStackLocationToNext or IoSkipCurrentIrpStackLocation instead of getting a pointer to the next-lower stack location and copying the parameters manually.
The return value is a pointer to an IO_STACK_LOCATION structure. For more information, see I/O Stack Locations.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Desktop |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |
| IRQL | Any level |