---
title: kIOSerialMemoryTxBuf
framework: SerialDriverKit
role: symbol
role_heading: Enumeration Case
platforms: [driverkit 19.0+]
path: serialdriverkit/kioserialmemorytxbuf
---

# kIOSerialMemoryTxBuf

## Declaration

```occ
kIOSerialMemoryTxBuf
```