---
title: kIOHierarchicalLogicalUnitSupportKey
framework: SCSIControllerDriverKit
role: symbol
role_heading: Macro
path: scsicontrollerdriverkit/kiohierarchicallogicalunitsupportkey
---

# kIOHierarchicalLogicalUnitSupportKey

## Declaration

```occ
#define kIOHierarchicalLogicalUnitSupportKey
```

## See Also

### Macros

- [kIOMinimumHBADataAlignmentMaskKey](scsicontrollerdriverkit/kiominimumhbadataalignmentmaskkey.md)
- [kIOServicePowerCapabilityPause](scsicontrollerdriverkit/kioservicepowercapabilitypause.md)
- [kMaxSenseBufferSize](scsicontrollerdriverkit/kmaxsensebuffersize.md)