---
title: SetPipePolicy
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.14+]
path: iokit/iousbinterfaceinterface942/2977247-setpipepolicy
---

# SetPipePolicy

## Declaration

```occ
IOReturn (*SetPipePolicy)(void *self, UInt8 pipeRef, UInt16 maxPacketSize, UInt8 maxInterval);
```