# IOPCIMemoryRange ``` enum IOPCIMemoryRange : unsigned int; ``` ## Overview\abstract BAR indexes for GetBARInfo ## Topics ### Enumeration Cases [`kPCIMemoryRangeBAR0`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeBAR0) [`kPCIMemoryRangeBAR1`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeBAR1) [`kPCIMemoryRangeBAR2`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeBAR2) [`kPCIMemoryRangeBAR3`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeBAR3) [`kPCIMemoryRangeBAR4`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeBAR4) [`kPCIMemoryRangeBAR5`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeBAR5) [`kPCIMemoryRangeExpansionROM`](/documentation/PCIDriverKit/IOPCIMemoryRange/kPCIMemoryRangeExpansionROM) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)