---
title: kHIDUsage_BD_Undefined
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 15.0+]
path: kernel/4359789-anonymous/khidusage_bd_undefined
---

# kHIDUsage_BD_Undefined

## Declaration

```occ
kHIDUsage_BD_Undefined = 0x00
```