---
title: Map
framework: Kernel
role: symbol
role_heading: Instance Method
platforms: [driverkit 19.0+, macOS 10.15+]
path: kernel/iomemorydescriptor/3180643-map
---

# Map

Maps memory internally.

## Declaration

```occ
kern_return_t Map(uint64_t options, uint64_t address, uint64_t length, uint64_t alignment, uint64_t *returnAddress, uint64_t *returnLength);
```