---
title: au_qctrl_t
framework: Kernel
role: symbol
role_heading: Structure
platforms: [macOS 10.3+]
path: kernel/au_qctrl_t
---

# au_qctrl_t

## Declaration

```occ
typedef struct au_qctrl {
    ...
} au_qctrl_t;
```

## Topics

### Instance Properties

- [aq_bufsz](kernel/au_qctrl_t/1520291-aq_bufsz.md)
- [aq_delay](kernel/au_qctrl_t/1520383-aq_delay.md)
- [aq_hiwater](kernel/au_qctrl_t/1520193-aq_hiwater.md)
- [aq_lowater](kernel/au_qctrl_t/1520367-aq_lowater.md)
- [aq_minfree](kernel/au_qctrl_t/1520210-aq_minfree.md)