IoGetNextIrpStackLocation

PIO_STACK_LOCATION
    IoGetNextIrpStackLocation(
        IN PIRP  Irp
        );

IoGetNextIrpStackLocation 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.

Parameters

Irp

Points to the IRP.

Return Value

IoGetNextIrpStackLocation returns a pointer to the next-lower-level driver’s I/O stack location in the given IRP.

Comments

Each driver that passes IRPs on to lower drivers must call IoGetNextIrpStackLocation so it can set up the stack location for the next-lower driver and call IoCallDriver with the IRP.

Callers of IoGetNextIrpStackLocation must be running at IRQL <= DISPATCH_LEVEL.

See Also

IO_STACK_LOCATION, IoCallDriver, IoGetCurrentIrpStackLocation, IoSetNextIrpStackLocation