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URTWN(4) BSD Kernel Interfaces Manual URTWN(4) NAME urtwn -- Realtek RTL8188CU/RTL8192CU USB IEEE 802.11b/g/n wireless net- work 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" DESCRIPTION The urtwn driver supports USB 2.0 wireless network devices based on Real- tek RTL8188CUS, RTL8188CE-VAU, RTL8188RU and RTL8192CU chipsets. The RTL8188CUS is a highly integrated 802.11n adapter that combines a MAC, a 1T1R capable baseband and an RF in a single chip. It operates 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. HARDWARE The following adapters should work: Belkin F7D1102 Surf Wireless Micro D-Link DWA-131 Edimax EW-7811Un Netgear WNA1000M Realtek RTL8192CU Realtek RTL8188CUS 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), 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. BSD October 6, 2013 BSD
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | EXAMPLES | DIAGNOSTICS | SEE ALSO | HISTORY | AUTHORS | CAVEATS
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