---
title: kHIDUsage_LED_MessageWaiting
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1641289-anonymous/khidusage_led_messagewaiting
---

# kHIDUsage_LED_MessageWaiting

## Declaration

```occ
kHIDUsage_LED_MessageWaiting = 0x19
```