1.\" $FreeBSD$ 2.\" 3.\" Copyright (c) 2015 Adrian Chadd <adrian@FreeBSD.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd September 25, 2015 18.Dt OTUS 4 19.Os 20.Sh NAME 21.Nm otus 22.Nd Atheros AR9170 USB IEEE 802.11a/b/g/n wireless network device 23.Sh SYNOPSIS 24To compile this driver into the kernel, 25place the following lines in your kernel configuration file: 26.Bd -ragged -offset indent 27.Cd "device ehci" 28.Cd "device uhci" 29.Cd "device ohci" 30.Cd "device usb" 31.Cd "device otus" 32.Cd "device wlan" 33.Ed 34.Pp 35Alternatively, to load the driver as a module at boot time, 36place the following line in 37.Xr loader.conf 5 : 38.Bd -literal -offset indent 39if_otus_load="YES" 40.Ed 41.Sh DESCRIPTION 42The 43.Nm 44driver supports USB 2.0 wireless network devices based on the Atheros 45AR9170 chipset. 46.Pp 47The Atheros AR9170 is a draft-802.11n adapter that uses an external 48radio to operate in either 2.4GHz only or 2.4GHz and 5GHz. 49.Pp 50The AR9101 radio supports 1T1R operation in 2GHz only. 51.Pp 52The AR9102 radio supports 2T2R operation in 2GHz only. 53.Pp 54The AR9104 radio supports 2T2R operation both 2GHz and 5GHz. 55.Pp 56These are the modes the 57.Nm 58driver can operate in: 59.Bl -tag -width "IBSS-masterXX" 60.It BSS mode 61Also known as 62.Em infrastructure 63mode, this is used when associating with an access point, through 64which all traffic passes. 65This mode is the default. 66.El 67.Pp 68The 69.Nm 70driver can be configured to use 71Wired Equivalent Privacy (WEP) or 72Wi-Fi Protected Access (WPA-PSK and WPA2-PSK). 73WPA is the de facto encryption standard for wireless networks. 74It is strongly recommended that WEP 75not be used as the sole mechanism 76to secure wireless communication, 77due to serious weaknesses in it. 78.Pp 79The 80.Nm 81driver can be configured at runtime with 82.Xr ifconfig 8 . 83.Sh FILES 84The driver needs at least version 1.0 of the following firmware files, 85which is loaded when an interface is attached: 86.Pp 87.Bl -tag -width Ds -offset indent -compact 88.It Pa /boot/kernel/otusfw-init.ko 89.It Pa /boot/kernel/otusfw-main.ko 90.El 91.Sh HARDWARE 92The 93.Nm 94driver provices support for Atheros AR9170 USB IEEE 802.11b/g/n 95wireless network adapters, including: 96.Pp 97.Bl -tag -width Ds -offset indent -compact 98.It 3Com 3CRUSBN275 99.It Arcadyan WN7512 100.\" .It AVM FRITZ!WLAN USB Stick N 101.It CACE AirPcap \&Nx 102.It D-Link DWA-130 rev \&D1 103.It D-Link DWA-160 rev A1 104.It D-Link DWA-160 rev A2 105.It IO-Data WN-GDN/US2 106.It NEC Aterm WL300NU-G 107.It Netgear WNDA3100 108.It Netgear WN111 v2 109.It Planex GW-US300 110.It SMC Networks SMCWUSB-N2 111.It TP-Link TL-WN821N v1, v2 112.It Ubiquiti SR71 USB 113.It Unex DNUA-81 114.It Z-Com UB81 115.It Z-Com UB82 116.It ZyXEL NWD-271N 117.El 118.Sh EXAMPLES 119Join an existing BSS network (i.e., connect to an access point): 120.Bd -literal -offset indent 121ifconfig wlan create wlandev otus0 inet 192.168.0.20 \e 122 netmask 0xffffff00 123.Ed 124.Pp 125Join a specific BSS network with network name 126.Dq Li my_net : 127.Pp 128.Dl "ifconfig wlan create wlandev otus0 ssid my_net up" 129.Pp 130Join a specific BSS network with 64-bit WEP encryption: 131.Bd -literal -offset indent 132ifconfig wlan create wlandev otus0 ssid my_net \e 133 wepmode on wepkey 0x1234567890 weptxkey 1 up 134.Ed 135.Sh DIAGNOSTICS 136.Bl -diag 137.It "%s: failed load firmware of file otusfw-main" 138For some reason, the driver was unable to read the microcode file from the 139filesystem. 140The file might be missing or corrupted. 141.El 142.Sh SEE ALSO 143.Xr intro 1 , 144.Xr netintro 4 , 145.Xr otusfw 4 , 146.Xr usb 4 , 147.Xr wlan 4 , 148.Xr arp 8 , 149.Xr hostapd 8 , 150.Xr ifconfig 8 , 151.Xr wpa_supplicant 8 152.Sh HISTORY 153The 154.Nm 155driver first appeared in 156.Ox 4.6 . 157.Sh AUTHORS 158.An -nosplit 159The 160.Nm 161driver was written by 162.An Damien Bergamini Aq Mt damien@openbsd.org 163and ported by 164.An Adrian Chadd Aq Mt adrian@freebsd.org . 165.Sh CAVEATS 166The 167.Nm 168driver only supports 802.11a/b/g operations. 169802.11n operation is not supported at this time. 170