---
title: Anonymous
framework: Kernel
role: containerSymbol
role_heading: Enumeration
platforms: [driverkit 20.0+, macOS 11.0+]
path: kernel/3645711-anonymous
---

# Anonymous

## Declaration

```occ
enum : unsigned int {
    ...
};
```

## Topics

### Constants

- [kIODMACommandPerformOperationOptionRead](kernel/3645711-anonymous/kiodmacommandperformoperationoptionread.md)
- [kIODMACommandPerformOperationOptionWrite](kernel/3645711-anonymous/kiodmacommandperformoperationoptionwrite.md)
- [kIODMACommandPerformOperationOptionZero](kernel/3645711-anonymous/kiodmacommandperformoperationoptionzero.md)