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The following list is based on the ''alias'' fields of {{{modinfo ar9170usb}}} in Debian 2.6.32 (2.6.32-41) kernel images. The following list is based on the ''alias'' fields of {{{modinfo ar9170usb}}} in Debian 2.6.32 (2.6.32-46) kernel images.

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Atheros AR9170 devices (ar9170usb)

This page describes how to enable support for WiFi devices based on the Atheros AR9170 chipset on Debian systems.

{i} Wheezy users, see carl9170 for device support.

ar9170usb is a driver for the Atheros AR9170 ("otus") 802.11 draft-n USB wireless LAN chipset, introduced in Linux 2.6.30. Supported devices are listed at the end of this page.

{i} Atheros AR9271/AR7010-based USB devices are supported by ath9k_htc. Atheros 802.11n PCI devices are supported by ath9k.



Firmware is required to be installed for device operation.

  1. Add a "non-free" component to /etc/apt/sources.list, for example:

    # Debian Squeeze/6.0
    deb http://ftp.us.debian.org/debian squeeze main contrib non-free
  2. Update the list of available packages and install the firmware-atheros package:

    # aptitude update && aptitude install firmware-atheros
  3. Connect the device to your system. The ar9170usb kernel module is automatically loaded for supported devices.

  4. Configure your wireless interface as appropriate.


The ar9170usb driver was removed at Linux 3.0.1 See carl9170 for device support.


  • Examine the kernel ring buffer (dmesg(1)) to verify required firmware files are being loaded by the driver:

    [ 7032.396963] usb 2-1: firmware: requesting ar9170.fw
    [ 7032.427345] usb 2-1: ar9170.fw firmware file not found, trying old firmware...
    [ 7032.442582] usb 2-1: firmware: requesting ar9170-1.fw
    [ 7032.495148] usb 2-1: file with init values not found.
    [ 7032.514607] ar9170usb: probe of 2-1:1.0 failed with error -2
    • If requested firmware is not available, no wireless interface will be created.
    • After firmware is installed, reconnect the device or reload the module (modprobe -r ar9170usb ; modprobe ar9170usb).

  • Use of the Qwest/Actiontec 802AIN device (USB ID 1668:1200) requires the usb-modeswitch package to be installed.2

Supported Devices

The page HowToIdentifyADevice/USB explains how to identify a USB device.

The following list is based on the alias fields of modinfo ar9170usb in Debian 2.6.32 (2.6.32-46) kernel images.

  • USB: 0409:0249 NEC Corp. Aterm WL300NU-G
    USB: 04BB:093F I-O Data Device, Inc. WNGDNUS2 802.11n
    USB: 057C:8401 AVM GmbH Fritz!WLAN N [Atheros AR9001U]
    USB: 057C:8402 AVM GmbH Fritz!WLAN N 2.4 [Atheros AR9001U]
    USB: 0586:3417 ZyXEL Communications Corp. NWD271N 802.11n Wireless Adapter [Atheros AR9001U-(2)NG]
    USB: 07D1:3A09 D-Link System DWA-160 802.11abgn Xtreme N Dual Band Adapter(rev.A2) [Atheros AR9170+AR9104]
    USB: 07D1:3C10 D-Link System DWA-160 802.11abgn Xtreme N Dual Band Adapter(rev.A1) [Atheros AR9170+AR9104]
    USB: 083A:F522 Accton Technology Corp. Arcadyan WN7512 802.11n
    USB: 0846:9001 NetGear, Inc. WN111(v2) RangeMax Next Wireless [Atheros AR9170+AR9101]
    USB: 0846:9010 NetGear, Inc. WNDA3100v1 802.11abgn [Atheros AR9170+AR9104]
    USB: 0846:9040 NetGear, Inc. WNA1000 Wireless-N 150 [Atheros AR9170+AR9101]
    USB: 0ACE:1221 ZyDAS ZD1221 802.11n
    USB: 0CDE:0023 Z-Com UB81 802.11bgn
    USB: 0CDE:0026 Z-Com UB82 802.11abgn
    USB: 0CDE:0027 Z-Com Sphairon Homelink 1202 802.11n Wireless Adapter [Atheros AR9170]
    USB: 0CF3:1001 Atheros Communications, Inc. Thomson TG121N [Atheros AR9001U-(2)NG]
    USB: 0CF3:1002 Atheros Communications, Inc. TP-Link TL-WN821N v2 802.11n [Atheros AR9170]
    USB: 0CF3:1010 Atheros Communications, Inc. 3Com 3CRUSBN275 802.11abgn Wireless Adapter [Atheros AR9170]
    USB: 0CF3:1011 Atheros Communications, Inc. (Device name unknown)
    USB: 0CF3:9170 Atheros Communications, Inc. AR9170 802.11n
    USB: 1435:0326 Wistron NeWeb (Device name unknown)
    USB: 1435:0804 Wistron NeWeb AR9170+AR9104 802.11abgn Wireless Adapter
    USB: 1668:1200 Actiontec Electronics, Inc. [hex] 802AIN Wireless N Network Adapter [Atheros AR9170+AR9101]
    USB: 2019:5304 PLANEX GWUS300 802.11n
    USB: CACE:0300 CACE Technologies Inc. AirPcap NX [Atheros AR9001U-(2)NG]

See Also

CategoryHardware | CategoryWireless