---
title: kIOPCIExpressRootCapabilitiesKey
framework: pcidriverkit
role: symbol
role_heading: Macro
path: pcidriverkit/kiopciexpressrootcapabilitieskey
---

# kIOPCIExpressRootCapabilitiesKey

## Declaration

```occ
#define kIOPCIExpressRootCapabilitiesKey
```