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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 15:32:58 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 15:32:58 -0400
commit5cb84ec742fd33f78c8022863fadaa8d0d93e176 (patch)
tree1a81ca3665e6153923e40db7b0d988f8573ab59c /static/netbsd/man4/iwn.4
parenta59214f344567c037d5776879bcfc5fcc1d4d5f6 (diff)
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+.\" $NetBSD: iwn.4,v 1.13 2014/10/30 13:05:58 nonaka Exp $
+.\"
+.\" Copyright (c) 2007,2008
+.\" Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd October 30, 2014
+.Dt IWN 4
+.Os
+.Sh NAME
+.Nm iwn
+.Nd Intel WiFi Link and Centrino IEEE 802.11 wireless network driver
+.Sh SYNOPSIS
+.Cd "iwn* at pci? dev ? function ?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for
+.Tn Intel
+Wireless WiFi Link 4965/5000/1000 and Centrino Wireless-N 1000/2000/6000
+Series PCIe Mini Card network adapters.
+.Pp
+The Intel Wireless WiFi Link 4965AGN (codenamed Kedron) is a PCIe
+Mini Card network adapter that operates in the 2GHz and 5GHz spectra.
+It has 2 transmit paths and 3 receiver paths (2T3R).
+It is part of the fourth-generation Centrino platform (codenamed Santa Rosa).
+.Pp
+The Intel WiFi Link 5000 series is a family of wireless network adapters
+that operate in the 2GHz and 5GHz spectra.
+They are part of the fifth-generation Centrino platform (codenamed Montevina).
+These adapters are available in both PCIe Mini Card (model code ending by MMW)
+and PCIe Half Mini Card (model code ending by HMW) form factor.
+The
+.Nm
+driver provides support for the 5100 (codenamed Shirley Peak 1x2),
+5150 (codenamed Echo Peak-V), 5300 (codenamed Shirley Peak 3x3) and
+5350 (codenamed Echo Peak-P) adapters.
+The 5100 and 5150 adapters have 1 transmit path and 2 receiver paths (1T2R).
+The 5300 and 5350 adapters have 3 transmit paths and 3 receiver paths (3T3R).
+.Pp
+The Intel WiFi Link 1000 (codenamed Condor Peak) is a single-chip wireless
+network adapter that operates in the 2GHz spectrum.
+It is part of the sixth-generation Centrino platform (codenamed Calpella).
+It is available in both PCIe Mini Card (model code ending by MMW)
+and PCIe Half Mini Card (model code ending by HMW) form factor.
+It has 1 transmit path and 2 receiver paths (1T2R).
+.Pp
+The Intel Centrino Ultimate-N 6300 (codenamed Puma Peak 3x3) is a single-chip
+wireless network adapter that operates in the 2GHz and 5GHz spectra.
+It has 3 transmit paths and 3 receiver paths (3T3R).
+The Intel Centrino Advanced-N 6250 (codenamed Kilmer Peak) is a combo
+WiFi/WiMAX network adapter that operates in the 2GHz and 5GHz spectra.
+It has 2 transmit paths and 2 receiver paths (2T2R).
+The Intel Centrino Advanced-N 6200 (codenamed Puma Peak 2x2) is
+a wireless network adapter that operates in the 2GHz and 5GHz spectra.
+It has 2 transmit paths and 2 receiver paths (2T2R).
+These adapters are part of the sixth-generation Centrino platform
+(codenamed Calpella).
+.Pp
+The Intel Centrino Wireless-N 2230 (codename Jackson Peak) and Intel
+Centrino Wireless-N 2200 (codename Marble Peak) are wireless network
+adapters that operate in the 2GHz spectrum.
+These adapters have 2 transmit paths and 2 receiver paths (2T2R).
+The Intel Centrino Wireless-N 135 and Intel Centrino Wireless-N 105
+(codename Canyon Peak) also operate in the 2GHz spectrum.
+These adapters have 1 transmit path and 1 receiver path (1T1R).
+.Pp
+By default, the
+.Nm
+driver configures the adapter for BSS operation (aka infrastructure mode).
+This mode requires the use of an access point.
+.Pp
+For more information on configuring this device, see
+.Xr ifconfig 8 .
+.Sh CONFIGURATION
+The
+.Nm
+driver can be configured at runtime with
+.Xr ifconfig 8
+using the following parameters:
+.Bl -tag -width Ds
+.It Cm bssid Ar bssid
+Set the desired BSSID.
+.It Fl bssid
+Unset the desired BSSID.
+The interface will automatically select a BSSID in this mode, which is
+the default.
+.It Cm chan Ar n
+Set the channel (radio frequency) to be used by the driver based on
+the given channel ID
+.Ar n .
+.It Fl chan
+Unset the desired channel to be used by the driver.
+The driver will automatically select a channel in this mode, which is
+the default.
+.It Cm media Ar media
+The
+.Nm
+driver supports the following
+.Ar media
+types:
+.Pp
+.Bl -tag -width autoselect -compact
+.It Cm autoselect
+Enable autoselection of the media type and options.
+.El
+.It Cm mediaopt Ar opts
+The
+.Nm
+driver supports the following media options:
+.Pp
+.Bl -tag -width monitor -compact
+.It Cm monitor
+Select monitor mode.
+.El
+.It Fl mediaopt Ar opts
+Disable the specified media options on the driver and return it to the
+default mode of operation (BSS).
+.It Cm mode Ar mode
+The
+.Nm
+driver supports the following modes:
+.Pp
+.Bl -tag -width 11b -compact
+.It Cm 11a
+Force 802.11a operation.
+.It Cm 11b
+Force 802.11b operation.
+.It Cm 11g
+Force 802.11g operation.
+.El
+.It Cm nwid Ar id
+Set the network ID.
+The
+.Ar id
+can either be any text string up to 32 characters in length,
+or a series of hexadecimal digits up to 64 digits.
+An empty
+.Ar id
+string allows the interface to connect to any available access points.
+By default the
+.Nm
+driver uses an empty string.
+Note that network ID is synonymous with Extended Service Set ID (ESSID).
+.It Cm nwkey Ar key
+Enable WEP encryption using the specified
+.Ar key .
+The
+.Ar key
+can either be a string, a series of hexadecimal digits (preceded by
+.Sq 0x ) ,
+or a set of keys of the form
+.Dq n:k1,k2,k3,k4 ,
+where
+.Sq n
+specifies which of the keys will be used for transmitted packets,
+and the four keys,
+.Dq k1
+through
+.Dq k4 ,
+are configured as WEP keys.
+If a set of keys is specified, a comma
+.Pq Sq \&,
+within the key must be escaped with a backslash.
+Note that if multiple keys are used, their order must be the same within
+the network.
+.Nm
+is capable of using both 40-bit (5 characters or 10 hexadecimal digits)
+or 104-bit (13 characters or 26 hexadecimal digits) keys.
+.It Fl nwkey
+Disable WEP encryption.
+This is the default mode of operation.
+.El
+.Sh EXAMPLES
+The following
+.Xr ifconfig.if 5 ,
+example configures iwn0 to join whatever network is available on boot,
+using WEP key
+.Dq 0x1deadbeef1 ,
+channel 11, obtaining an IP address using DHCP:
+.Bd -literal -offset indent
+dhcp NONE NONE NONE nwkey 0x1deadbeef1 chan 11
+.Ed
+.Pp
+Configure iwn0 for WEP, using hex key
+.Dq 0x1deadbeef1 :
+.Bd -literal -offset indent
+# ifconfig iwn0 nwkey 0x1deadbeef1
+.Ed
+.Pp
+Return iwn0 to its default settings:
+.Bd -literal -offset indent
+# ifconfig iwn0 -bssid -chan media autoselect \e
+ nwid "" -nwkey
+.Ed
+.Pp
+Join an existing BSS network,
+.Dq my_net :
+.Bd -literal -offset indent
+# ifconfig iwn0 192.168.1.1 netmask 0xffffff00 nwid my_net
+.Ed
+.Sh DIAGNOSTICS
+.Bl -diag
+.It "iwn%d: device timeout"
+A frame dispatched to the hardware for transmission did not complete in time.
+The driver will reset the hardware.
+This should not happen.
+.It "iwn%d: fatal firmware error"
+For some reason, the firmware crashed.
+The driver will reset the hardware.
+This should not happen.
+.It "iwn%d: radio is disabled by hardware switch"
+The radio transmitter is off and thus no packet can go out.
+The driver will reset the hardware.
+Make sure the laptop radio switch is on.
+.It "iwn%d: error %d, could not read firmware %s"
+For some reason, the driver was unable to read the firmware image from the
+filesystem.
+The file might be missing or corrupted.
+.It "iwn%d: could not get firmware handle %s"
+.It "iwn%d: could not read firmware"
+The driver was unable to find the file with the proper firmware image.
+It should be located in
+.Pa /libdata/firmware/if_iwn .
+.It "iwn%d: firmware file too short: %d bytes"
+The firmware image is corrupted and can't be loaded into the adapter.
+.It "iwn%d: could not load firmware"
+An attempt to load the firmware into the adapter failed.
+The driver will reset the hardware.
+.El
+.Sh SEE ALSO
+.Xr arp 4 ,
+.Xr ifmedia 4 ,
+.Xr intro 4 ,
+.Xr netintro 4 ,
+.Xr pci 4 ,
+.Xr ifconfig.if 5 ,
+.Xr ifconfig 8
+.Sh AUTHORS
+The
+.Nm
+driver and this man page were written by
+.An Damien Bergamini Aq Mt damien.bergamini@free.fr .