---
title: proto_unregister_plumber
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.4+]
path: kernel/1532494-proto_unregister_plumber
---

# proto_unregister_plumber

## Declaration

```occ
void proto_unregister_plumber(protocol_family_t proto_fam, ifnet_family_t if_fam);
```

## Parameters

- `proto_fam`: The protocol family these plumbing functions handle.
- `if_fam`: The interface family these plumbing functions handle.

## Discussion

Discussion Unregisters a previously registered plumbing function.