---
title: genPhysicalSegments
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iomemorycursor/1400980-genphysicalsegments
---

# genPhysicalSegments

## Declaration

```occ
virtual UInt32 genPhysicalSegments(IOMemoryDescriptor *descriptor, IOByteCount fromPosition, void *segments, UInt32 maxSegments, UInt32 maxTransferSize, IOByteCount *transferSize);
```