204 lines
5.5 KiB
Groff
204 lines
5.5 KiB
Groff
.\" $NetBSD: iwn.4,v 1.7 2009/05/18 02:41:23 snj Exp $
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.\"
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.\" Copyright (c) 2007,2008
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.\" Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
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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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.Dd May 18, 2009
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.Dt IWN 4
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.Os
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.Sh NAME
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.Nm iwn
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.Nd Intel Wireless 4965AGN IEEE 802.11 driver
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.Sh SYNOPSIS
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.Cd "iwn* at pci? dev ? function ?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for
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.Tn Intel
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Wireless WiFi Link 4965AGN Mini PCI Express network adapters.
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.Pp
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By default, the
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.Nm
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driver configures the adapter for BSS operation (aka infrastructure mode).
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This mode requires the use of an access point.
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.Pp
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For more information on configuring this device, see
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.Xr ifconfig 8 .
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.Sh CONFIGURATION
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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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using the following parameters:
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.Bl -tag -width Ds
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.It Cm bssid Ar bssid
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Set the desired BSSID.
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.It Fl bssid
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Unset the desired BSSID.
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The interface will automatically select a BSSID in this mode, which is
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the default.
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.It Cm chan Ar n
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Set the channel (radio frequency) to be used by the driver based on
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the given channel ID
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.Ar n .
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.It Fl chan
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Unset the desired channel to be used by the driver.
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The driver will automatically select a channel in this mode, which is
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the default.
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.It Cm media Ar media
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The
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.Nm
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driver supports the following
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.Ar media
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types:
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.Pp
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.Bl -tag -width autoselect -compact
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.It Cm autoselect
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Enable autoselection of the media type and options.
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.El
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.It Cm mediaopt Ar opts
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The
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.Nm
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driver supports the following media options:
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.Pp
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.Bl -tag -width monitor -compact
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.It Cm monitor
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Select monitor mode.
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.El
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.It Fl mediaopt Ar opts
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Disable the specified media options on the driver and return it to the
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default mode of operation (BSS).
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.It Cm mode Ar mode
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The
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.Nm
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driver supports the following modes:
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.Pp
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.Bl -tag -width 11b -compact
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.It Cm 11a
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Force 802.11a operation.
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.It Cm 11b
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Force 802.11b operation.
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.It Cm 11g
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Force 802.11g operation.
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.El
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.It Cm nwid Ar id
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Set the network ID.
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The
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.Ar id
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can either be any text string up to 32 characters in length,
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or a series of hexadecimal digits up to 64 digits.
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An empty
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.Ar id
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string allows the interface to connect to any available access points.
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By default the
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.Nm
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driver uses an empty string.
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Note that network ID is synonymous with Extended Service Set ID (ESSID).
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.It Cm nwkey Ar key
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Enable WEP encryption using the specified
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.Ar key .
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The
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.Ar key
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can either be a string, a series of hexadecimal digits (preceded by
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.Sq 0x ) ,
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or a set of keys of the form
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.Dq n:k1,k2,k3,k4 ,
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where
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.Sq n
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specifies which of the keys will be used for transmitted packets,
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and the four keys,
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.Dq k1
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through
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.Dq k4 ,
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are configured as WEP keys.
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If a set of keys is specified, a comma
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.Pq Sq \&,
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within the key must be escaped with a backslash.
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Note that if multiple keys are used, their order must be the same within
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the network.
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.Nm
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is capable of using both 40-bit (5 characters or 10 hexadecimal digits)
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or 104-bit (13 characters or 26 hexadecimal digits) keys.
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.It Fl nwkey
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Disable WEP encryption.
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This is the default mode of operation.
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.El
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.Sh EXAMPLES
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The following
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.\" .Xr hostname.if 5 ,
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example configures iwn0 to join whatever network is available on boot,
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using WEP key
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.Dq 0x1deadbeef1 ,
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channel 11, obtaining an IP address using DHCP:
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.Bd -literal -offset indent
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dhcp NONE NONE NONE nwkey 0x1deadbeef1 chan 11
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.Ed
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.Pp
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Configure iwn0 for WEP, using hex key
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.Dq 0x1deadbeef1 :
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.Bd -literal -offset indent
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# ifconfig iwn0 nwkey 0x1deadbeef1
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.Ed
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.Pp
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Return iwn0 to its default settings:
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.Bd -literal -offset indent
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# ifconfig iwn0 -bssid -chan media autoselect \e
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nwid "" -nwkey
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.Ed
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.Pp
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Join an existing BSS network,
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.Dq my_net :
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.Bd -literal -offset indent
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# ifconfig iwn0 192.168.1.1 netmask 0xffffff00 nwid my_net
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.Ed
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "iwn%d: device timeout"
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A frame dispatched to the hardware for transmission did not complete in time.
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The driver will reset the hardware.
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This should not happen.
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.It "iwn%d: fatal firmware error"
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For some reason, the firmware crashed.
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The driver will reset the hardware.
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This should not happen.
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.It "iwn%d: radio is disabled by hardware switch"
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The radio transmitter is off and thus no packet can go out.
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The driver will reset the hardware.
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Make sure the laptop radio switch is on.
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.It "iwn%d: error %d, could not read firmware %s"
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For some reason, the driver was unable to read the firmware image from the
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filesystem.
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The file might be missing or corrupted.
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.It "iwn%d: firmware file too short: %d bytes"
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The firmware image is corrupted and can't be loaded into the adapter.
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.It "iwn%d: could not load firmware"
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An attempt to load the firmware into the adapter failed.
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The driver will reset the hardware.
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.El
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr ifmedia 4 ,
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.Xr intro 4 ,
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.Xr netintro 4 ,
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.Xr pci 4 ,
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.\" .Xr hostname.if 5 ,
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.Xr ifconfig 8
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.Sh AUTHORS
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The
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.Nm
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driver and this man page were written by
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.An Damien Bergamini Aq damien.bergamini@free.fr .
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