.\" $OpenBSD: upgt.4,v 1.6 2008/04/17 14:01:22 jmc Exp $ .\" .\" Copyright (c) 2007 Marcus Glocker .\" Copyright (c) 2005-2007 .\" Damien Bergamini .\" .\" Permission to use, copy, modify, and distribute this software for any .\" purpose with or without fee is hereby granted, provided that the above .\" copyright notice and this permission notice appear in all copies. .\" .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" .\" .\" .\" Copyright (c) 2006 Theo de Raadt. .\" Copyright (c) 2006 The DragonFly Project. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in .\" the documentation and/or other materials provided with the .\" distribution. .\" 3. Neither the name of The DragonFly Project nor the names of its .\" contributors may be used to endorse or promote products derived .\" from this software without specific, prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT .\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS .\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE .\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, .\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, .\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED .\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT .\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .Dd $Mdocdate: April 17 2008 $ .Os .Dt UPGT 4 .Sh NAME .Nm upgt .Nd Conexant/Intersil PrismGT SoftMAC USB IEEE 802.11b/g wireless network device .Sh SYNOPSIS .Cd "upgt* at uhub? port ?" .Sh DESCRIPTION The .Nm driver supports the USB 2.0 Conexant/Intersil PrismGT series wireless adapters based on the GW3887 chipset. .Pp These are the modes the .Nm driver can operate in: .Bl -tag -width "IBSS-masterXX" .It BSS mode Also known as .Em infrastructure mode, this is used when associating with an access point, through which all traffic passes. This mode is the default. .\" .It IBSS mode .\" Also known as .\" .Em IEEE ad-hoc .\" mode or .\" .Em peer-to-peer .\" mode. .\" This is the standardized method of operating without an access point. .\" Stations associate with a service set. .\" However, actual connections between stations are peer-to-peer. .\" .It Host AP .\" In this mode the driver acts as an access point (base station) .\" for other cards. .It monitor mode In this mode the driver is able to receive packets without associating with an access point. This disables the internal receive filter and enables the card to capture packets from networks which it wouldn't normally have access to, or to scan for access points. .El .Pp .Nm supports software WEP. Wired Equivalent Privacy (WEP) is the de facto encryption standard for wireless networks. It can be typically configured in one of three modes: no encryption; 40-bit encryption; or 104-bit encryption. Unfortunately, due to serious weaknesses in WEP protocol it is strongly recommended that it not be used as the sole mechanism to secure wireless communication. WEP is not enabled by default. .\".Pp .\"The transmit speed is user-selectable or can be adapted automatically by the .\"driver depending on the received signal strength and on the number of hardware .\"transmission retries. .Pp The .Nm driver can be configured at runtime with .Xr ifconfig 8 or on boot with .Xr hostname.if 5 . .Sh FILES The driver needs a firmware file which is loaded when an interface is brought up: .Pp .Bl -tag -width Ds -offset indent -compact .It Pa /etc/firmware/upgt-gw3887 .El .\".Pp .\"These firmware files are not free because Conexant/Intersil refuses .\"to grant distribution rights. .\"As a result, even though .\".Ox .\"includes the driver, the firmware files cannot be included and .\"users have to download these files on their own. .Pp A prepackaged version of the firmware, designed to be used with .Xr pkg_add 1 , can be found at: .Bd -literal -offset indent http://www.nazgul.ch/upgt/upgt-firmware-1.1.tgz .Ed .Sh HARDWARE The following adapters should work: .Pp .Bl -tag -width Ds -offset indent -compact .It Belkin F5D7050 (version 1000) .It Cohiba Proto Board .It D-Link DWL-G120 Cohiba .It FSC Connect2Air E-5400 USB D1700 .It Gigaset USB Adapter 54 .It Inventel UR045G .It Netgear WG111v2 .It SMC EZ ConnectG SMC2862W-G .It Sagem XG703A .It Spinnaker DUT .It Spinnaker Proto Board .El .Sh EXAMPLES The following .Xr hostname.if 5 example configures upgt0 to join whatever network is available on boot, using WEP key .Dq 0x1deadbeef1 , channel 11, obtaining an IP address using DHCP: .Bd -literal -offset indent dhcp NONE NONE NONE nwkey 0x1deadbeef1 chan 11 .\".Ed .\".Pp .\"The following .\".Xr hostname.if 5 .\"example creates a host-based access point on boot: .\".Bd -literal -offset indent .\"inet 192.168.1.1 255.255.255.0 NONE media autoselect \e .\" mediaopt hostap nwid my_net chan 11 .Ed .Pp Configure upgt0 for WEP, using hex key .Dq 0x1deadbeef1 : .Bd -literal -offset indent # ifconfig upgt0 nwkey 0x1deadbeef1 .Ed .Pp Return upgt0 to its default settings: .Bd -literal -offset indent # ifconfig upgt0 -bssid -chan media autoselect \e nwid "" -nwkey .Ed .Pp Join an existing BSS network, .Dq my_net : .Bd -literal -offset indent # ifconfig upgt0 192.168.1.1 netmask 0xffffff00 nwid my_net .Ed .Sh SEE ALSO .Xr arp 4 , .Xr ifmedia 4 , .Xr intro 4 , .Xr netintro 4 , .Xr usb 4 , .Xr hostname.if 5 , .\".Xr hostapd 8 , .Xr ifconfig 8 .Sh HISTORY The .Nm driver first appeared in .Ox 4.3 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Marcus Glocker Aq mglocker@openbsd.org . .Pp The hardware specification was reverse engineered by the people at .Pa http://www.prism54.org . .Sh CAVEATS The .Nm driver just supports the USB 2.0 devices (GW3887 chipset) but not the USB 1.0 devices containing the NET2280, ISL3880, and ISL3886 chipsets. Some further efforts would be necessary to add USB 1.0 support to the driver.