---
title: readDVDStructure
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iodvdservices/1545770-readdvdstructure
---

# readDVDStructure

## Declaration

```occ
virtual IOReturn readDVDStructure(IOMemoryDescriptor *buffer, const UInt8 structureFormat, const UInt32 logicalBlockAddress, const UInt8 layer, const UInt8 agid);
```