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Comment: WPA is not supported.
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 * The atmel_cs driver has no has monitor or master mode functionality.  * No monitor or master mode functionality is available.
 * The driver does not support WPA.

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Atmel at76c502, at76c502d, at76c502e, at76c504, at76c504a, at76c504c devices

This page describes how to enable support for WiFi devices based on Atmel PCMCIA chipsets on Debian systems.

atmel_cs is a module for Atmel at76c502x and at76c504x PCMCIA 802.11b wireless LAN chipsets. For assistance with Atmel PCI or USB wireless devices, see the atmel_pci and at76_usb pages respectively.

Non-free firmware is required, which can be provided by installing the atmel-firmware package.

Installation

The atmel_cs driver is included in the mainline Linux kernel since version 2.6.5. It is included as a module in Debian kernel images.

Firmware is required to be installed prior to device operation:

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

    # Debian Lenny/5.0
    deb http://ftp.us.debian.org/debian lenny main contrib non-free
  2. Update the list of available packages and install the atmel-firmware and wireless-tools packages:

    aptitude update
    aptitude install atmel-firmware wireless-tools
  3. If not already performed, connect the device to your system.
  4. The necessary kernel module should be automatically loaded. If necessary, it can be manually loaded via:

    modprobe atmel_cs
  5. Verify your device has an available interface:

    iwconfig
  6. Raise the interface to activate the radio, for example:

    ifconfig eth1 up
  7. Configure your wireless interface as appropriate.

Troubleshooting

  • Examine the kernel ring buffer (dmesg(1)) to verify the required firmware file is being loaded by the driver. Lack of firmware is the usual reason for the "SIOCSIFFLAGS: Resource temporarily unavailable" error message.

Known Issues

  • No monitor or master mode functionality is available.
  • The driver does not support WPA.

Supported Devices

The page HowToIdentifyADevice/PC_Card explains how to identify a PC Card device.

The following list was extracted from /etc/pcmcia/atmel.conf provided by atmel-firmware.

  • 11WAVE WaveBuddy RFMD Revision E PC Card
    3Com 3CRSHPW_96 Wireless LAN PC Card
    3Com 3CRWE62092B 11Mbps WLAN PC Card
    Actiontec 802CAT1
    ATMEL 11 Mbps Wireless 504+2958 PCMCIA Card
    ATMEL 11 Mbps Wireless 504A PCMCIA Card
    ATMEL 11 Mbps Wireless 504 PCMCIA Card
    ATMEL 11 Mbps Wireless RFMD PCMCIA Card
    ATMEL 11 Mbps Wireless RFMD Revision D PCMCIA Card
    ATMEL 11 Mbps Wireless RFMD Revision E PCMCIA Card
    Belkin F5D6020
    BT Voyager 1020
    CNet CNWLC-811ARL
    LG LW2100N 11Mbps WLAN PCMCIA Card
    OEM 11Mbps WLAN PCMCIA Card
    Planet WL-3552
    Siemens Gigaset PC Card II
    Siemens Gigaset PC Card II
    Sitecom WLAN-011
    SMC 2632W V2 11Mbps 802.11b WLAN Card
    SMC 2632W V3 11Mbps 802.11b WLAN Card

Other Notes

The dependent atmel module accepts a firmware parameter, which can be used to force the loading of a specific firmware file if necessary.

See Also


CategoryHardware