// irb.h

typedef struct _IDE_ACCESS_RANGE {
  IDE_PHYSICAL_ADDRESS RangeStart;
  IDE_PHYSICAL_ADDRESS PhysicalRangeStart;
  ULONG                RangeLength;
  BOOLEAN              InMemory;
  UCHAR                Bar;
} IDE_ACCESS_RANGE, *PIDE_ACCESS_RANGE;
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Windows Driver Kit DDI reference (ns-irb-_ide_access_range)

_IDE_ACCESS_RANGE structure

Description

The IDE_ACCESS_RANGE structure contains the address ranges allocated for an IDE controller.

Note The ATA port driver and ATA miniport driver models may be altered or unavailable in the future. Instead, we recommend using the Storport driver and Storport miniport driver models.

Members

`RangeStart`

Contains the logical starting address of the address range.

`PhysicalRangeStart`

Contains the physical starting address of the address range.

`RangeLength`

Contains the size, in bytes, of the range.

`InMemory`

Flag that indicates if this is a memory mapped resource. If cleared, this is an I/O port resource.

`Bar`

The number of the PCI Base Address Range that this resource was found in.

View the official Windows Driver Kit DDI reference

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