Updated: 2021/Apr/14

ATU(4)                       Device Drivers Manual                      ATU(4)

     atu - Atmel at76c50x 802.11B wireless network interfaces

     atu* at uhub? port ?

     The atu driver provides support for wireless network adapters based
     around the Atmel at76c503, at76c503a, at76c505, and at76c505a USB

     Supported features include 802.11 and 802.3 frames, power management,
     BSS, IBSS, ad-hoc, and host-based access point mode.

     The atu driver encapsulates all IP and ARP traffic as 802.11 frames,
     however it can receive either 802.11 or 802.3 frames.  Transmit speed is
     selectable between 1Mbps fixed, 2Mbps fixed, 2Mbps with auto fallback,
     5.5Mbps, 8Mbps, or 11Mbps depending on your hardware.

     Four different radio chipsets are used along with the device, each
     requiring a different firmware.

     By default, the atu driver configures the card for BSS operation (aka
     infrastructure mode).  This mode requires the use of an access point
     (base station).

     For more information on configuring this device, see ifconfig(8).

     The following devices are among those supported by the atu driver:

           Acer Peripherals AWL400
           AcerP AWL-300
           Aincomm AWU2000B
           Atmel 2662W-V4
           Atmel BW002
           Atmel DWL-120
           Atmel WL-1330
           Belkin F5D6050
           Geowave GW-US11S
           Linksys WUSB11
           Linksys WUSB11-V28
           Ovislink AirLive
           SMC 2662W-AR

     arp(4), ifmedia(4), intro(4), netintro(4), usb(4), ifconfig(8),

     The atu driver was written by Daan Vreeken and ported to OpenBSD by Theo
     de Raadt and David Gwynne.  The OpenBSD driver was then ported to NetBSD
     by Jesse Off <joff@NetBSD.org>.

NetBSD 9.99                    January 23, 2005                    NetBSD 9.99