---
title: sc_unit
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.13+]
path: kernel/sockaddr_ctl/1809262-sc_unit
---

# sc_unit

Kernel controller private unit number.

## Declaration

```occ
u_int32_t sc_unit;
```

## See Also

### Fields

- [sc_len](kernel/sockaddr_ctl/1809243-sc_len.md)
- [sc_family](kernel/sockaddr_ctl/1809246-sc_family.md)
- [ss_sysaddr](kernel/sockaddr_ctl/1809252-ss_sysaddr.md)
- [sc_id](kernel/sockaddr_ctl/1809255-sc_id.md)
- [sc_reserved](kernel/sockaddr_ctl/1809263-sc_reserved.md)