---
title: IOFWIsochPortOptions
framework: IOKit
role: symbol
role_heading: Enumeration
platforms: [Mac Catalyst 13.0+, macOS 10.3+]
path: iokit/iofwisochportoptions
---

# IOFWIsochPortOptions

## Declaration

```occ
typedef enum IOFWIsochPortOptions : unsigned int {
    ...
} IOFWIsochPortOptions;
```

## Topics

### Constants

- [kFWIsochBigEndianUpdates](iokit/iofwisochportoptions/kfwisochbigendianupdates.md)
- [kFWIsochEnableRobustness](iokit/iofwisochportoptions/kfwisochenablerobustness.md)
- [kFWIsochPortDefaultOptions](iokit/iofwisochportoptions/kfwisochportdefaultoptions.md)
- [kFWIsochPortUseSeparateKernelThread](iokit/iofwisochportoptions/kfwisochportuseseparatekernelthread.md)
- [kFWIsochRequireLastContext](iokit/iofwisochportoptions/kfwisochrequirelastcontext.md)