224 lines
6.9 KiB
Groff
224 lines
6.9 KiB
Groff
.\" $OpenBSD: upgt.4,v 1.6 2008/04/17 14:01:22 jmc Exp $
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.\" $FreeBSD$
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.\"
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.\" Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
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.\" Copyright (c) 2005-2007
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.\" Damien Bergamini <damien.bergamini@free.fr>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.\"
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.\"
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.\" Copyright (c) 2006 Theo de Raadt.
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.\" Copyright (c) 2006 The DragonFly Project. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\"
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in
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.\" the documentation and/or other materials provided with the
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.\" distribution.
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.\" 3. Neither the name of The DragonFly Project nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific, prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd April 17, 2008
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.Os
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.Dt UPGT 4
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.Sh NAME
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.Nm upgt
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.Nd Conexant/Intersil PrismGT SoftMAC USB IEEE 802.11b/g wireless network
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device
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following lines in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device ehci"
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.Cd "device uhci"
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.Cd "device ohci"
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.Cd "device usb"
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.Cd "device upgt"
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.Cd "device wlan"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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if_upgt_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver supports the USB 2.0 Conexant/Intersil PrismGT series wireless
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adapters based on the GW3887 chipset.
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.Pp
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These are the modes the
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.Nm
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driver can operate in:
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.Bl -tag -width "IBSS-masterXX"
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.It BSS mode
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Also known as
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.Em infrastructure
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mode, this is used when associating with an access point, through
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which all traffic passes.
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This mode is the default.
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.\" .It IBSS mode
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.\" Also known as
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.\" .Em IEEE ad-hoc
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.\" mode or
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.\" .Em peer-to-peer
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.\" mode.
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.\" This is the standardized method of operating without an access point.
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.\" Stations associate with a service set.
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.\" However, actual connections between stations are peer-to-peer.
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.\" .It Host AP
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.\" In this mode the driver acts as an access point (base station)
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.\" for other cards.
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.It monitor mode
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In this mode the driver is able to receive packets without
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associating with an access point.
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This disables the internal receive filter and enables the card to
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capture packets from networks which it wouldn't normally have access to,
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or to scan for access points.
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.El
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.Pp
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.Nm
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supports software WEP.
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Wired Equivalent Privacy (WEP) is the de facto encryption standard
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for wireless networks.
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It can be typically configured in one of three modes:
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no encryption; 40-bit encryption; or 104-bit encryption.
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Unfortunately, due to serious weaknesses in WEP protocol
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it is strongly recommended that it not be used as the
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sole mechanism to secure wireless communication.
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WEP is not enabled by default.
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.\".Pp
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.\"The transmit speed is user-selectable or can be adapted automatically by the
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.\"driver depending on the received signal strength and on the number of hardware
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.\"transmission retries.
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.Pp
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The
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.Nm
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driver can be configured at runtime with
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.Xr ifconfig 8 .
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.Sh FILES
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.\".Pp
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.\"These firmware files are not free because Conexant/Intersil refuses
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.\"to grant distribution rights.
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.\"As a result, even though
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.\".Ox
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.\"includes the driver, the firmware files cannot be included and
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.\"users have to download these files on their own.
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This driver requires the
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.Nm upgtfw
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firmware to be installed before it will work.
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The firmware files are not publicly available.
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A package of the firmware which can be installed via
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.Xr pkg_add 1
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is available:
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.Bd -literal -offset indent
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http://weongyo.org/project/upgt/upgt-firmware-2.13.1.0.tar.gz
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.Ed
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.Sh HARDWARE
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The
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.Nm
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driver supports USB 2.0 Conexant/Intersil PrismGT series wireless
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adapters based on the GW3887 chipset, among them:
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.Pp
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.Bl -bullet -compact
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.It
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Belkin F5D7050 (version 1000)
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.It
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Cohiba Proto Board
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.It
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D-Link DWL-G120 Cohiba
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.It
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FSC Connect2Air E-5400 USB D1700
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.It
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Gigaset USB Adapter 54
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.It
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Inventel UR045G
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.It
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SMC EZ ConnectG SMC2862W-G
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.It
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Sagem XG703A
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.It
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Spinnaker DUT
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.It
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Spinnaker Proto Board
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.El
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.Sh EXAMPLES
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Join an existing BSS network (i.e., connect to an access point):
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.Pp
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.Bd -literal -offset indent
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ifconfig wlan create wlandev upgt0 inet 192.168.0.20 \e
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netmask 0xffffff00
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.Ed
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.Pp
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Join a specific BSS network with network name
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.Dq Li my_net :
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.Pp
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.Dl "ifconfig wlan create wlandev upgt0 ssid my_net up"
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.Pp
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Join a specific BSS network with 64-bit WEP encryption:
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.Bd -literal -offset indent
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ifconfig wlan create wlandev upgt0 ssid my_net \e
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wepmode on wepkey 0x1234567890 weptxkey 1 up
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.Ed
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr usb 4 ,
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.Xr wlan 4 ,
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.Xr ifconfig 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Ox 4.3 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Marcus Glocker Aq mglocker@openbsd.org .
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.Pp
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The hardware specification was reverse engineered by the people at
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.Pa http://www.prism54.org .
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.Sh CAVEATS
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The
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.Nm
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driver just supports the USB 2.0 devices (GW3887 chipset) but not the
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USB 1.0 devices containing the NET2280, ISL3880, and ISL3886 chipsets.
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Some further efforts would be necessary to add USB 1.0 support to the
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driver.
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