Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
URTWN(4)	       FreeBSD Kernel Interfaces Manual		      URTWN(4)

NAME
     urtwn -- Realtek RTL8188CU/RTL8188EU/RTL8192CU USB	IEEE 802.11b/g/n wire-
     less network device

SYNOPSIS
     To	compile	this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device ehci
	   device uhci
	   device ohci
	   device usb
	   device urtwn
	   device wlan

     Alternatively, to load the	driver as a module at boot time, place the
     following line in loader.conf(5):

	   if_urtwn_load="YES"

     In	both cases, place the following	line in	loader.conf(5) to acknowledge
     the firmware license (see below):

	   legal.realtek.license_ack=1

DESCRIPTION
     The urtwn driver supports USB 2.0 wireless	network	devices	based on Real-
     tek RTL8188CUS, RTL8188CE-VAU, RTL8188EUS,	RTL8188RU and RTL8192CU
     chipsets.

     The RTL8188CUS and	RTL8188EUS are highly integrated 802.11n adapter that
     combine a MAC, a 1T1R capable baseband and	an RF in a single chip.	 They
     operate in	the 2GHz spectrum only.	 The RTL8188RU is a high-power variant
     of	the RTL8188CUS.	 The RTL8188CE-VAU is a	PCI Express Mini Card adapter
     that attaches to the USB interface.

     The RTL8192CU is a	highly integrated multiple-in, multiple-out (MIMO)
     802.11n adapter that combines a MAC, a 2T2R capable baseband and an RF in
     a single chip.  It	operates in the	2GHz spectrum only.

     This driver requires the firmware built with the urtwnfw module to	work.
     For the loaded firmware to	be enabled for use the license at
     /usr/share/doc/legal/realtek must be agreed by adding the following line
     to	loader.conf(5):

	   legal.realtek.license_ack=1

FILES
     /usr/share/doc/legal/realtek  urtwn firmware license

HARDWARE
     The urtwn driver supports Realtek RTL8188CU/RTL8188EU/RTL8192CU based USB
     IEEE 802.11b/g/n wireless network adapters, including:

	   ASUS	USB-N10	NANO
	   Belkin F7D1102 Surf Wireless	Micro
	   D-Link DWA-125 rev
	   D-Link DWA-131
	   Edimax EW-7811Un
	   Netgear WNA1000M
	   Realtek RTL8192CU
	   Realtek RTL8188CUS
	   TP-LINK TL-WN723N v3
	   TP-LINK TL-WN725N v2

EXAMPLES
     Join an existing BSS network (i.e., connect to an access point):

	   ifconfig wlan create	wlandev	urtwn0 inet 192.168.0.20 \
	       netmask 0xffffff00

     Join a specific BSS network with network name ``my_net'':

	   ifconfig wlan create	wlandev	urtwn0 ssid my_net up

     Join a specific BSS network with 64-bit WEP encryption:

	   ifconfig wlan create	wlandev	urtwn0 ssid my_net \
		   wepmode on wepkey 0x1234567890 weptxkey 1 up

DIAGNOSTICS
     urtwn%d: error %d,	could not read firmware	%s  For	some reason, the
     driver was	unable to read the microcode file from the filesystem.	The
     file might	be missing or corrupted.

     urtwn%d: device timeout  A	frame dispatched to the	hardware for transmis-
     sion did not complete in time.  The driver	will reset the hardware.  This
     should not	happen.

SEE ALSO
     intro(4), netintro(4), urtwnfw(4),	usb(4),	wlan(4), wlan_ccmp(4),
     wlan_tkip(4), wlan_wep(4),	ifconfig(8), wpa_supplicant(8)

     Realtek, http://www.realtek.com.tw.

HISTORY
     The urtwn driver first appeared in	OpenBSD	4.9 and	FreeBSD	10.0.

AUTHORS
     The urtwn driver was written by Damien Bergamini <damien@openbsd.org>.

CAVEATS
     The urtwn driver does not support any of the 802.11n capabilities offered
     by	the adapters.

FreeBSD	10.1			  May 3, 2014			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | FILES | HARDWARE | EXAMPLES | DIAGNOSTICS | SEE ALSO | HISTORY | AUTHORS | CAVEATS

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=urtwn&sektion=4&manpath=FreeBSD+10.1-RELEASE>

home | help