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atu(4) [netbsd man page]

ATU(4)							   BSD Kernel Interfaces Manual 						    ATU(4)

atu -- Atmel at76c50x 802.11B wireless network interfaces SYNOPSIS
atu* at uhub? port ? DESCRIPTION
The atu driver provides support for wireless network adapters based around the Atmel at76c503, at76c503a, at76c505, and at76c505a USB chipsets. 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 SEE ALSO
arp(4), ifmedia(4), intro(4), netintro(4), usb(4), ifconfig(8), wiconfig(8) AUTHORS
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 <>. BSD
January 23, 2005 BSD

Check Out this Related Man Page

AN(4)                                                      BSD Kernel Interfaces Manual                                                      AN(4)

an -- Aironet Communications 4500/4800 wireless network adapter driver SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file: device an device wlan Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): if_an_load="YES" DESCRIPTION
The an driver provides support for Aironet Communications 4500 and 4800 wireless network adapters and variants, including the following: o Aironet Communications 4500 and 4800 series o Cisco Aironet 340 and 350 series o Xircom Wireless Ethernet Adapter Support for these devices include the ISA, PCI and PCMCIA varieties. The Aironet 4500 series adapters operate at 1 and 2Mbps while the Aironet 4800 series and Cisco adapters can operate at 1, 2, 5.5 and 11Mbps. The ISA, PCI and PCMCIA devices are all based on the same core PCMCIA modules and all have the same programming interface, however unlike the Lucent WaveLAN/IEEE cards, the ISA and PCI cards appear to the host as normal ISA and PCI devices and do not require any PCCARD support. The PCMCIA Aironet cards require PC Card support, including the kernel pccard(4) driver. ISA cards can either be configured to use ISA Plug and Play or to use a particular I/O address and IRQ by properly setting the DIP switches on the board. (The default switch setting is for Plug and Play.) The an driver has Plug and Play support and will work in either configuration, however when using a hard-wired I/O address and IRQ, the driver configuration and the NIC's switch settings must agree. PCI cards require no switch settings of any kind and will be automatically probed and attached. All host/device interaction with the Aironet cards is via programmed I/O. The Aironet devices support 802.11 and 802.3 frames, power manage- ment, BSS (infrastructure) and IBSS (ad-hoc) operation modes. The an 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, 2Mbps, 5.5Mbps, 11Mbps or "auto" (the NIC automati- cally chooses the best speed). By default, the an driver configures the Aironet card for infrastructure operation. For more information on configuring this device, see ifconfig(8). DIAGNOSTICS
an%d: init failed The Aironet card failed to become ready after an initialization command was issued. an%d: failed to allocate %d bytes on NIC The driver was unable to allocate memory for transmit frames in the NIC's on-board RAM. an%d: device timeout The Aironet card failed to generate an interrupt to acknowledge a transmit command. SEE ALSO
altq(4), arp(4), miibus(4), netintro(4), wlan(4), ancontrol(8), ifconfig(8) HISTORY
The an device driver first appeared in FreeBSD 4.0. AUTHORS
The an driver was written by Bill Paul <>. BSD July 16, 2005 BSD
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