---
title: readRZoneInfo
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iodvdmedia/1588595-readrzoneinfo
---

# readRZoneInfo

## Declaration

```occ
virtual IOReturn readRZoneInfo(IOMemoryDescriptor *buffer, UInt32 address, DVDRZoneInfoAddressType addressType, UInt16 *actualByteCount);
```