---
title: kev_class
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.9+]
path: kernel/kev_request/1446933-kev_class
---

# kev_class

All kernel events that don't match this class will be ignored. KEV_ANY_CLASS can be used to receive kernel events with any class.

## Declaration

```occ
u_int32_t kev_class;
```

## See Also

### Fields

- [total_size](kernel/kev_request/1809281-total_size.md)
- [vendor_code](kernel/kev_request/1446920-vendor_code.md)
- [kev_subclass](kernel/kev_request/1446979-kev_subclass.md)