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

# wlan\_amrr(4)

AMRR rate adaptation algorithm support for 802.11 devices

## NAME

**wlan\_amrr** – AMRR rate adaptation algorithm support for 802.11 devices

## SYNOPSIS

**device wlan\_amrr**

## DESCRIPTION

The **wlan\_amrr** module implements the Adaptive Multi-Rate Retry tx rate control algorithm for use by 802.11 device drivers.

## SEE ALSO

[bwi(4)](/bwi/4.md), [iwn(4)](/iwn/4.md), [ral(4)](/ral/4.md), [rum(4)](/rum/4.md), [ural(4)](/ural/4.md), [wlan(4)](/wlan/4.md), [wpi(4)](/wpi/4.md), [zyd(4)](/zyd/4.md)

## STANDARDS

More information can be found in the paper describing the *AMRR* algorithm at *https://hal.inria.fr/inria-00070784/en/*.

## HISTORY

The **wlan\_amrr** driver first appeared in FreeBSD 6.0.