---
name: "iwmbtfw"
section: "8"
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/iwmbtfw"
---

# iwmbtfw(8)

load firmware for Intel Wireless AC Bluetooth USB devices

## NAME

**iwmbtfw** – load firmware for Intel Wireless AC Bluetooth USB devices

## SYNOPSIS

**iwmbtfw** \[**-DI**\] **-d** *device\_name* \[**-f** *firmware\_path*\]

**iwmbtfw** **-h**

## DESCRIPTION

The **iwmbtfw** utility downloads the specified firmware file to the specified [ugen(4)](/ugen/4.md) device.

This utility will *only* work with Intel Wireless 7260/8260/9260 and newer chip based Bluetooth USB devices, including AX and BE series wireless adapters. The identification is currently based on USB vendor ID/product ID pair and result of HCI queries. The vendor ID should be 0x8087 (USB\_VENDOR\_INTEL2) and the product ID should be one of the supported devices.

Firmware files are available in the *comms/iwmbt-firmware* port.

The **iwmbtfw** utility will query the device to determine which firmware image and board configuration to load in at runtime.

The options are as follows:

- **-I**

  Enable informational debugging.

- **-D**

  Enable verbose debugging.

- **-d** *device\_name*

  Specify [ugen(4)](/ugen/4.md) device name.

- **-f** *firmware\_path*

  Specify the directory containing the firmware files to search and upload.

- **-h**

  Display usage message and exit.

- **-p**

  Use only USB vendor ID/product ID pair for device model identification.

## EXIT STATUS

The **iwmbtfw** utility exits 0 on success, and \>0 if an error occurs.

## SEE ALSO

[libusb(3)](/libusb/3.md), [ugen(4)](/ugen/4.md), [devd(8)](/devd/8.md)

## AUTHORS

**iwmbtfw** is based on [ath3kfw(8)](/ath3kfw/8.md) utility used as firmware downloader template and on Linux btintel driver source code. It is written by Vladimir Kondratyev ⟨*wulf@FreeBSD.org*⟩.

Support for the 7260 card added by Philippe Michaud-Boudreault ⟨*pitwuu@gmail.com*⟩.

## BUGS

Most likely. Please report if found.