---
name: "full"
section: "4"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["linux", "freebsd"]
url: "https://carta.tech/man/full"
---

# full(4)

the full device

## NAME

**full** – the full device

## DESCRIPTION

The **full** device supplies an endless stream of zeros when read. However, it will always be full when writing to it.

## FILES

- */dev/full*

  ## SEE ALSO

[null(4)](/man/null/4.md), [zero(4)](/man/zero/4.md)

## AUTHORS

This device and man page was written by Eitan Adler ⟨*eadler@FreeBSD.org*⟩.