---
title: kHIDUsage_MSR_DeviceReadOnly
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1641262-anonymous/khidusage_msr_devicereadonly
---

# kHIDUsage_MSR_DeviceReadOnly

## Declaration

```occ
kHIDUsage_MSR_DeviceReadOnly = 0x01
```