---
title: initWithSpecification
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iomemorycursor/1401022-initwithspecification
---

# initWithSpecification

## Declaration

```occ
virtual bool initWithSpecification(SegmentFunction outSegFunc, IOPhysicalLength maxSegmentSize, IOPhysicalLength maxTransferSize, IOPhysicalLength alignment);
```