170 lines
4.4 KiB
Groff
170 lines
4.4 KiB
Groff
.\" $FreeBSD$
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.\"
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.\" Copyright (c) 2015 Adrian Chadd <adrian@FreeBSD.org>
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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 September 25, 2015
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.Dt OTUS 4
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.Os
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.Sh NAME
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.Nm otus
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.Nd Atheros AR9170 USB IEEE 802.11a/b/g/n wireless network device
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following lines in your kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device ehci"
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.Cd "device uhci"
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.Cd "device ohci"
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.Cd "device usb"
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.Cd "device otus"
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.Cd "device wlan"
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.Ed
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.Pp
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Alternatively, to load the driver as a module at boot time,
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place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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if_otus_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver supports USB 2.0 wireless network devices based on the Atheros
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AR9170 chipset.
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.Pp
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The Atheros AR9170 is a draft-802.11n adapter that uses an external
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radio to operate in either 2.4GHz only or 2.4GHz and 5GHz.
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.Pp
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The AR9101 radio supports 1T1R operation in 2GHz only.
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.Pp
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The AR9102 radio supports 2T2R operation in 2GHz only.
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.Pp
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The AR9104 radio supports 2T2R operation both 2GHz and 5GHz.
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.Pp
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These are the modes the
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.Nm
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driver can operate in:
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.Bl -tag -width "IBSS-masterXX"
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.It BSS mode
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Also known as
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.Em infrastructure
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mode, this is used when associating with an access point, through
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which all traffic passes.
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This mode is the default.
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.El
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.Pp
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The
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.Nm
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driver can be configured to use
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Wired Equivalent Privacy (WEP) or
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Wi-Fi Protected Access (WPA-PSK and WPA2-PSK).
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WPA is the de facto encryption standard for wireless networks.
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It is strongly recommended that WEP
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not be used as the sole mechanism
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to secure wireless communication,
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due to serious weaknesses in it.
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.Pp
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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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.Sh FILES
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The driver needs at least version 1.0 of the following firmware files,
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which is loaded when an interface is attached:
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.Pp
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.Bl -tag -width Ds -offset indent -compact
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.It Pa /boot/kernel/otusfw-init.ko
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.It Pa /boot/kernel/otusfw-main.ko
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.El
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.Sh HARDWARE
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The
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.Nm
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driver provices support for Atheros AR9170 USB IEEE 802.11b/g/n
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wireless network adapters, including:
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.Pp
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.Bl -tag -width Ds -offset indent -compact
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.It 3Com 3CRUSBN275
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.It Arcadyan WN7512
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.\" .It AVM FRITZ!WLAN USB Stick N
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.It CACE AirPcap \&Nx
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.It D-Link DWA-130 rev \&D1
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.It D-Link DWA-160 rev A1
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.It D-Link DWA-160 rev A2
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.It IO-Data WN-GDN/US2
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.It NEC Aterm WL300NU-G
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.It Netgear WNDA3100
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.It Netgear WN111 v2
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.It Planex GW-US300
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.It SMC Networks SMCWUSB-N2
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.It TP-Link TL-WN821N v1, v2
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.It Ubiquiti SR71 USB
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.It Unex DNUA-81
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.It Z-Com UB81
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.It Z-Com UB82
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.It ZyXEL NWD-271N
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.El
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.Sh EXAMPLES
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Join an existing BSS network (i.e., connect to an access point):
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.Bd -literal -offset indent
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ifconfig wlan create wlandev otus0 inet 192.168.0.20 \e
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netmask 0xffffff00
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.Ed
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.Pp
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Join a specific BSS network with network name
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.Dq Li my_net :
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.Pp
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.Dl "ifconfig wlan create wlandev otus0 ssid my_net up"
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.Pp
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Join a specific BSS network with 64-bit WEP encryption:
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.Bd -literal -offset indent
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ifconfig wlan create wlandev otus0 ssid my_net \e
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wepmode on wepkey 0x1234567890 weptxkey 1 up
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.Ed
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "%s: failed load firmware of file otusfw-main"
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For some reason, the driver was unable to read the microcode file from the
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filesystem.
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The file might be missing or corrupted.
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.El
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.Sh SEE ALSO
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.Xr intro 1 ,
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.Xr netintro 4 ,
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.Xr otusfw 4 ,
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.Xr usb 4 ,
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.Xr wlan 4 ,
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.Xr arp 8 ,
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.Xr hostapd 8 ,
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.Xr ifconfig 8 ,
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.Xr wpa_supplicant 8
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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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.Ox 4.6 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Damien Bergamini Aq Mt damien@openbsd.org
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and ported by
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.An Adrian Chadd Aq Mt adrian@freebsd.org .
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.Sh CAVEATS
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The
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.Nm
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driver only supports 802.11a/b/g operations.
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802.11n operation is not supported at this time.
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