1.\" $OpenBSD: upgt.4,v 1.6 2008/04/17 14:01:22 jmc Exp $ 2.\" 3.\" Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org> 4.\" Copyright (c) 2005-2007 5.\" Damien Bergamini <damien.bergamini@free.fr> 6.\" 7.\" Permission to use, copy, modify, and distribute this software for any 8.\" purpose with or without fee is hereby granted, provided that the above 9.\" copyright notice and this permission notice appear in all copies. 10.\" 11.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18.\" 19.\" 20.\" 21.\" Copyright (c) 2006 Theo de Raadt. 22.\" Copyright (c) 2006 The DragonFly Project. All rights reserved. 23.\" 24.\" Redistribution and use in source and binary forms, with or without 25.\" modification, are permitted provided that the following conditions 26.\" are met: 27.\" 28.\" 1. Redistributions of source code must retain the above copyright 29.\" notice, this list of conditions and the following disclaimer. 30.\" 2. Redistributions in binary form must reproduce the above copyright 31.\" notice, this list of conditions and the following disclaimer in 32.\" the documentation and/or other materials provided with the 33.\" distribution. 34.\" 3. Neither the name of The DragonFly Project nor the names of its 35.\" contributors may be used to endorse or promote products derived 36.\" from this software without specific, prior written permission. 37.\" 38.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 39.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 40.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 41.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 42.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 43.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 44.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 46.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 47.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 48.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 49.\" SUCH DAMAGE. 50.\" 51.Dd February 18, 2025 52.Dt UPGT 4 53.Os 54.Sh NAME 55.Nm upgt 56.Nd Conexant/Intersil PrismGT SoftMAC USB IEEE 802.11b/g wireless network 57driver 58.Sh SYNOPSIS 59To compile this driver into the kernel, 60place the following lines in your 61kernel configuration file: 62.Bd -ragged -offset indent 63.Cd "device ehci" 64.Cd "device uhci" 65.Cd "device ohci" 66.Cd "device usb" 67.Cd "device upgt" 68.Cd "device wlan" 69.Ed 70.Pp 71Alternatively, to load the driver as a 72module at boot time, place the following line in 73.Xr loader.conf 5 : 74.Bd -literal -offset indent 75if_upgt_load="YES" 76.Ed 77.Sh DEPRECATION NOTICE 78The 79.Nm 80driver is slated to be removed in 81.Fx 15.0 . 82.Sh DESCRIPTION 83The 84.Nm 85driver supports the USB 2.0 Conexant/Intersil PrismGT series wireless 86adapters based on the GW3887 chipset. 87.Pp 88These are the modes the 89.Nm 90driver can operate in: 91.Bl -tag -width "IBSS-masterXX" 92.It BSS mode 93Also known as 94.Em infrastructure 95mode, this is used when associating with an access point, through 96which all traffic passes. 97This mode is the default. 98.\" .It IBSS mode 99.\" Also known as 100.\" .Em IEEE ad-hoc 101.\" mode or 102.\" .Em peer-to-peer 103.\" mode. 104.\" This is the standardized method of operating without an access point. 105.\" Stations associate with a service set. 106.\" However, actual connections between stations are peer-to-peer. 107.\" .It Host AP 108.\" In this mode the driver acts as an access point (base station) 109.\" for other cards. 110.It monitor mode 111In this mode the driver is able to receive packets without 112associating with an access point. 113This disables the internal receive filter and enables the card to 114capture packets from networks which it wouldn't normally have access to, 115or to scan for access points. 116.El 117.Pp 118.Nm 119supports software WEP. 120Wired Equivalent Privacy (WEP) is the de facto encryption standard 121for wireless networks. 122It can be typically configured in one of three modes: 123no encryption; 40-bit encryption; or 104-bit encryption. 124Unfortunately, due to serious weaknesses in WEP protocol 125it is strongly recommended that it not be used as the 126sole mechanism to secure wireless communication. 127WEP is not enabled by default. 128.\".Pp 129.\"The transmit speed is user-selectable or can be adapted automatically by the 130.\"driver depending on the received signal strength and on the number of hardware 131.\"transmission retries. 132.Pp 133The 134.Nm 135driver can be configured at runtime with 136.Xr ifconfig 8 . 137.Sh FILES 138.\".Pp 139.\"These firmware files are not free because Conexant/Intersil refuses 140.\"to grant distribution rights. 141.\"As a result, even though 142.\".Ox 143.\"includes the driver, the firmware files cannot be included and 144.\"users have to download these files on their own. 145This driver requires the 146.Nm upgtfw 147firmware to be installed before it will work. 148The firmware files are not publicly available. 149A package of the firmware which can be installed via 150.Xr pkg_add 1 151is available: 152.Bd -literal -offset indent 153http://weongyo.org/project/upgt/upgt-firmware-2.13.1.0.tar.gz 154.Ed 155.Sh HARDWARE 156The 157.Nm 158driver supports USB 2.0 Conexant/Intersil PrismGT series wireless 159adapters based on the GW3887 chipset, among them: 160.Pp 161.Bl -bullet -compact 162.It 163Belkin F5D7050 (version 1000) 164.It 165Cohiba Proto Board 166.It 167D-Link DWL-G120 Cohiba 168.It 169FSC Connect2Air E-5400 USB D1700 170.It 171Gigaset USB Adapter 54 172.It 173Inventel UR045G 174.It 175Netgear WG111v1 (rev2) 176.It 177SMC EZ ConnectG SMC2862W-G 178.It 179Sagem XG703A 180.It 181Spinnaker DUT 182.It 183Spinnaker Proto Board 184.El 185.Sh EXAMPLES 186Join an existing BSS network (i.e., connect to an access point): 187.Bd -literal -offset indent 188ifconfig wlan create wlandev upgt0 inet 192.168.0.20 \e 189 netmask 0xffffff00 190.Ed 191.Pp 192Join a specific BSS network with network name 193.Dq Li my_net : 194.Pp 195.Dl "ifconfig wlan create wlandev upgt0 ssid my_net up" 196.Pp 197Join a specific BSS network with 64-bit WEP encryption: 198.Bd -literal -offset indent 199ifconfig wlan create wlandev upgt0 ssid my_net \e 200 wepmode on wepkey 0x1234567890 weptxkey 1 up 201.Ed 202.Sh SEE ALSO 203.Xr arp 4 , 204.Xr netintro 4 , 205.Xr usb 4 , 206.Xr wlan 4 , 207.Xr ifconfig 8 208.Sh HISTORY 209The 210.Nm 211driver first appeared in 212.Ox 4.3 . 213.Sh AUTHORS 214.An -nosplit 215The 216.Nm 217driver was written by 218.An Marcus Glocker Aq Mt mglocker@openbsd.org . 219.Pp 220The hardware specification was reverse engineered by the people at 221.Pa http://www.prism54.org . 222.Sh CAVEATS 223The 224.Nm 225driver just supports the USB 2.0 devices (GW3887 chipset) but not the 226USB 1.0 devices containing the NET2280, ISL3880, and ISL3886 chipsets. 227Some further efforts would be necessary to add USB 1.0 support to the 228driver. 229