---
title: kFWIsochRequireLastContext
framework: IOKit
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 13.0+, macOS 10.6+]
path: iokit/iofwisochportoptions/kfwisochrequirelastcontext
---

# kFWIsochRequireLastContext

## Declaration

```occ
kFWIsochRequireLastContext = BIT(4)
```