---
title: so_np_extensions
framework: Kernel
role: symbol
platforms: [macOS 10.6+]
path: kernel/so_np_extensions
---

# so_np_extensions

## Declaration

```occ
struct so_np_extensions {
    ...
};
```

## Topics

### Instance Properties

- [npx_flags](kernel/so_np_extensions/1499346-npx_flags.md)
- [npx_mask](kernel/so_np_extensions/1499122-npx_mask.md)