---
title: setBufferConstraints
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iofirewiresbp2orb/1569073-setbufferconstraints
---

# setBufferConstraints

## Declaration

```occ
IOReturn setBufferConstraints(UInt64 maxSegmentSize, UInt32 alignment, UInt32 options);
```