URTWN(4) | Device Drivers Manual | URTWN(4) |
urtwn
— Realtek
RTL8188CU/RTL8188EU/RTL8192CU/RTL8192EU USB IEEE 802.11b/g/n wireless
network device
urtwn* at uhub? port ?
The urtwn
driver supports USB 2.0 wireless
network devices based on Realtek RTL8188CUS, RTL8188CE-VAU, RTL8188EUS,
RTL8188RU, RTL8192CU and RTL8192EU chipsets.
The RTL8188CUS and RTL8188EUS are highly integrated 802.11n adapters 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 and RTL8192EU are highly integrated multiple-in, multiple-out (MIMO) 802.11n adapters that combine a MAC, a 2T2R capable baseband and an RF in a single chip. It operates in the 2GHz spectrum only.
These are the modes the urtwn
driver can
operate in:
The urtwn
driver can be configured to use
Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA-PSK and
WPA2-PSK). WPA is the de facto encryption standard for wireless networks. It
is strongly recommended that WEP not be used as the sole mechanism to secure
wireless communication, due to serious weaknesses in it.
The urtwn
driver can be configured at
runtime with ifconfig(8) or
on boot with
ifconfig.if(5).
The driver needs the following firmware files, which are loaded when an interface is attached:
The following adapters should work:
The following ifconfig.if(5) example configures urtwn0 to join whatever network is available on boot, using WEP key “0x1deadbeef1”, channel 11, obtaining an IP address using DHCP:
nwkey 0x1deadbeef1 chan 11 dhcp
Join an existing BSS network, “my_net”:
# ifconfig urtwn0 192.168.1.1 netmask 0xffffff00 nwid my_net
arp(4), netintro(4), usb(4), ifconfig.if(5), wpa_supplicant.conf(5), ifconfig(8), wpa_supplicant(8)
The urtwn
device driver first appeared in
OpenBSD 4.9 and in NetBSD
6.0.
The urtwn
driver was written by
Damien Bergamini ⟨damien@openbsd.org⟩
for OpenBSD and ported to
NetBSD by NONAKA Kimihiro
⟨nonaka@NetBSD.org⟩.
The urtwn
driver does not support any of
the 802.11n capabilities offered by the adapters. Additional work is
required in ieee80211(9)
before those features can be supported.
May 26, 2024 | NetBSD 10.99 |