---
title: deviceMemoryRead
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iopcidevice/4359883-devicememoryread
---

# deviceMemoryRead

## Declaration

```occ
virtual IOReturn deviceMemoryRead(uint8_t memoryIndex, uint64_t offset, void *data, uint8_t size, IOOptionBits options);
```