99 lines
2.9 KiB
Groff
99 lines
2.9 KiB
Groff
.\"
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.\" Copyright (c) 2003 Tom Rhodes
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.\" 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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.\" 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 the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT 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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.\" $FreeBSD$
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.\"
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.Dd September 25, 2003
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.Dt WLAN 4
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.Os
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.Sh NAME
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.Nm wlan
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.Nd generic 802.11 link-layer support
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.Sh SYNOPSIS
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.Cd "device wlan"
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.Sh DESCRIPTION
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The
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.Nm
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device provides generic code to support 802.11
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drivers, including host AP mode.
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Currently it is required for the
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.Xr wi 4 ,
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.Xr an 4
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and
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.Xr ath 4
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drivers but will eventually be required by all 802.11 drivers.
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.Pp
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If the associated interface is marked for debugging with, for example,
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.Bd -literal -offset indent
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ifconfig wi0 debug
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.Ed
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.Pp
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then messages describing the operation of the 802.11 protocol will
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be sent to the console.
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With the interface marked for debugging, doing:
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.Bd -literal -offset indent
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sysctl debug.ieee80211=1
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.Ed
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.Pp
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causes additional messages to be generated.
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Many drivers will also display the contents of each 802.11 frame
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sent and received when the interface is marked with
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both debugging and ``link2''; e.g.
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.Bd -literal -offset indent
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ifconfig wi0 debug link2
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.Ed
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.Pp
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Beware however that some management frames may be processed entirely within
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the device and not be received by the host.
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.Sh COMPATIBILITY
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The module name of
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.Nm
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was used to be compatible with
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.Nx .
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.Sh SEE ALSO
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.Xr an 4 ,
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.Xr ath 4 ,
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.Xr awi 4 ,
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.Xr netintro 4 ,
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.Xr wi 4
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.Sh STANDARDS
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More information can be found in the IEEE 802.11 Standard.
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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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.Fx 5.0 .
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.Sh AUTHORS
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Atsushi Onoe is the original author of this software.
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The
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.Nx
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support was adapted to
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.Fx
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by
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.An -nosplit
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.An Sam Leffler .
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This manual page was written by
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.An Tom Rhodes Aq trhodes@FreeBSD.org .
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