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# Debian 7.0 "Wheezy" # Debian 7 "Wheezy"

Translation(s): English - Français


Prism 2/2.5/3 USB devices (wlan-ng)

This page describes how to enable support for WiFi devices based on Prism 2/2.5/3 chips - using a USB interface - on Debian systems.

Intersil (now Conexant) Prism 2/2.5/3 802.11b USB devices are supported by the Linux kernel's wlan-ng driver. It was originally written by the linux-wlan-ng project and introduced as a staging driver at Linux 2.6.28. Supported devices are listed at the end of this page.

{i} Prism54 802.11g devices are supported by the p54 drivers.

{i} Prism 2/2.5/3 802.11b PCI and PC Card devices are supported by the hostap driver.

Installation

The prism2_usb Linux kernel module is included within Debian Linux kernel images.

Firmware for this driver (prism2_ru.fw) is available via the prism2-usb-firmware-installer package. Only some devices require firmware from userspace for their operation. For all devices, it will transiently upgrade station firmware to version 1.8.3.

  1. Connect the device to your system.
  2. If firmware is required to be provided for your device (e.g. Prism 3 Small Serial Flash):
    1. Add a "contrib" component to /etc/apt/sources.list, for example:

      # Debian 7 "Wheezy"
      deb http://http.debian.net/debian/ wheezy main contrib
    2. Update the list of available packages and install the prism2-usb-firmware-installer package:

      apt-get update && apt-get install prism2-usb-firmware-installer
    3. Reinsert the prism2_usb module to access installed firmware:

      modprobe -r prism2_usb ; modprobe prism2_usb
  3. Configure your wireless interface as appropriate.

Troubleshooting

  • Examine the kernel ring buffer (dmesg(1)) to verify any required firmware files are being loaded by the driver. Lack of firmware is the usual reason for the "SIOCSIFFLAGS: No such file or directory" error message.

    • If required, ensure you have installed the prism2-usb-firmware-installer package, then reload the prism2_usb module: modprobe -r prism2_usb ; modprobe prism2_usb

Known Issues

  • This driver does not support WPA.

Supported Devices

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

The following list is based on the alias fields of prism2_usb in Debian 3.2.0 (3.2.41-2) kernel images.

  • USB: 03F3:0020 Adaptec, Inc. AWN-8020 WLAN [Intersil PRISM 2.5]
    USB: 0411:0016 BUFFALO INC. (formerly MelCo., Inc.) WLI-USB-S11 802.11b Adapter
    USB: 0411:0027 BUFFALO INC. (formerly MelCo., Inc.) WLI-USB-KS11G 802.11b Adapter
    USB: 0411:0044 BUFFALO INC. (formerly MelCo., Inc.) WLI-USB-KB11 Wireless LAN Adapter
    USB: 045E:006E Microsoft Corp. MN-510 802.11b Wireless Adapter [Intersil ISL3873B]
    USB: 049F:0033 Compaq Computer Corp. Wireless LAN MultiPort W100 [Intersil PRISM 2.5]
    USB: 04BB:0922 I-O Data Device, Inc. IOData AirPort WN-B11/USBS 802.11b
    USB: 04F1:3009 Victor Company of Japan, Ltd MP-XP7250 WLAN Adapter
    USB: 0543:0F01 ViewSonic Corp. airsync Wi-Fi Wireless Adapter
    USB: 066B:2212 Linksys, Inc. WUSB11v2.5 802.11b Adapter
    USB: 066B:2213 Linksys, Inc. WUSB12v1.1 802.11b Adapter
    USB: 067C:1022 Efficient Networks, Inc. Siemens SpeedStream 1022 802.11b Adapter
    USB: 07AA:0012 Corega K.K. Stick-11 802.11b Adapter
    USB: 083A:3503 Accton Technology Corp. T-Sinus 111 Wireless Adapter
    USB: 0846:4110 NetGear, Inc. MA111(v1) 802.11b Wireless [Intersil Prism 3.0]
    USB: 08DE:7A01 ??? 802.11b Adapter
    USB: 0967:0204 Acer (??) WarpLink 802.11b Adapter
    USB: 09AA:3642 Intersil Corp. Prism 2.x 802.11b Adapter
    USB: 0B3B:1601 Tekram Technology Co., Ltd Allnet 0193 802.11b Adapter
    USB: 0B3B:1602 Tekram Technology Co., Ltd ZyXEL ZyAIR B200 802.11b Adapter
    USB: 0BAF:00EB U.S. Robotics USR1120 802.11b Adapter
    USB: 0BB2:0302 Ambit Microsystems Corp. U10H010 802.11b Wireless Adapter [Intersil PRISM 3]
    USB: 0CDE:0002 Z-Com XI-725/726 Prism2.5 802.11b Adapter
    USB: 0CDE:0005 Z-Com XI-735 Prism3 802.11b Adapter
    USB: 0D8E:7A01 Global Sun Technology, Inc. PRISM25 802.11b Adapter
    USB: 124A:168B AirVast PRISM3 WLAN Adapter
    USB: 124A:4017 AirVast PC-Chips 802.11b Adapter
    USB: 1668:0408 Actiontec Electronics, Inc. [hex] Prism2.5 802.11b Adapter
    USB: 1668:0421 Actiontec Electronics, Inc. [hex] Prism2.5 802.11b Adapter
    USB: 1668:6106 Actiontec Electronics, Inc. [hex] 802UI3(B) 802.11b Wireless Adapter [Intersil PRISM 3]
    USB: 1915:2236 Nordic Semiconductor ASA Linksys WUSB11 v3.0 802.11b Adapter [Intersil PRISM 3]
    USB: 2001:3700 D-Link Corp. DWL-122 802.11b [Intersil Prism 3]
    USB: 2001:3702 D-Link Corp. DWL-120 802.11b Wireless Adapter(rev.F) [Intersil ISL3871]
    USB: 2821:3300 ASUSTek Computer Inc. WL-140 / Hawking HWU36D 802.11b Wireless Adapter [Intersil PRISM 3]
    USB: 2C02:14EA Planex Communications GW-US11H WLAN
    USB: 413C:8100 Dell Computer Corp. TrueMobile 1180 802.11b Adapter [Intersil PRISM 3]
    USB: 50C2:4013 Averatec (?) WLAN Adapter
    USB: 8086:1111 Intel Corp. PRO/Wireless 2011B 802.11b Adapter [Intersil PRISM 2.5]
    USB: 9016:182D Sitecom WL-022 802.11b Adapter

See Also


CategoryHardware | CategoryWireless