---
title: IsMemoryDescriptorValid
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsiprimarycommandsdevice/3516759-ismemorydescriptorvalid
---

# IsMemoryDescriptorValid

## Declaration

```occ
bool IsMemoryDescriptorValid(IOMemoryDescriptor *dataBuffer, UInt64 requiredSize);
```