1.\" 2.\" Copyright (c) 2003 Tom Rhodes 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd September 25, 2003 29.Dt WLAN 4 30.Os 31.Sh NAME 32.Nm wlan 33.Nd generic 802.11 link-layer support 34.Sh SYNOPSIS 35.Cd "device wlan" 36.Sh DESCRIPTION 37The 38.Nm 39device provides generic code to support 802.11 40drivers, including host AP mode. 41Currently it is required for the 42.Xr wi 4 , 43.Xr an 4 44and 45.Xr ath 4 46drivers but will eventually be required by all 802.11 drivers. 47.Pp 48If the associated interface is marked for debugging with, for example, 49.Bd -literal -offset indent 50ifconfig wi0 debug 51.Ed 52.Pp 53then messages describing the operation of the 802.11 protocol will 54be sent to the console. 55With the interface marked for debugging, doing: 56.Bd -literal -offset indent 57sysctl debug.ieee80211=1 58.Ed 59.Pp 60causes additional messages to be generated. 61Many drivers will also display the contents of each 802.11 frame 62sent and received when the interface is marked with 63both debugging and ``link2''; e.g. 64.Bd -literal -offset indent 65ifconfig wi0 debug link2 66.Ed 67.Pp 68Beware however that some management frames may be processed entirely within 69the device and not be received by the host. 70.Sh COMPATIBILITY 71The module name of 72.Nm 73was used to be compatible with 74.Nx . 75.Sh SEE ALSO 76.Xr an 4 , 77.Xr ath 4 , 78.Xr awi 4 , 79.Xr netintro 4 , 80.Xr wi 4 81.Sh STANDARDS 82More information can be found in the IEEE 802.11 Standard. 83.Sh HISTORY 84The 85.Nm 86driver first appeared in 87.Fx 5.0 . 88.Sh AUTHORS 89Atsushi Onoe is the original author of this software. 90The 91.Nx 92support was adapted to 93.Fx 94by 95.An -nosplit 96.An Sam Leffler . 97This manual page was written by 98.An Tom Rhodes Aq trhodes@FreeBSD.org . 99