---
title: ctl_getenqueuereadable
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.13+]
path: kernel/2919907-ctl_getenqueuereadable
---

# ctl_getenqueuereadable

## Declaration

```occ
errno_t ctl_getenqueuereadable(kern_ctl_ref kctlref, u_int32_t unit, u_int32_t *difference);
```

## See Also

### control

- [ctl_deregister](kernel/1809161-ctl_deregister.md)
- [ctl_enqueuedata](kernel/1809168-ctl_enqueuedata.md)
- [ctl_enqueuembuf](kernel/1809171-ctl_enqueuembuf.md)
- [ctl_getenqueuespace](kernel/1809173-ctl_getenqueuespace.md)
- [ctl_register](kernel/1809176-ctl_register.md)