ZYD(4) | Device Drivers Manual | ZYD(4) |
zyd
— ZyDAS
ZD1211/ZD1211B USB IEEE 802.11b/g wireless network device
zyd* at uhub? port ?
The zyd
driver provides support for
wireless network adapters based around the ZyDAS ZD1211 and ZD1211B USB
chips.
These are the modes the zyd
driver can
operate in:
The zyd
driver can be configured to use
Wired Equivalent Privacy (WEP) or Wi-Fi Protected Access (WPA1 and WPA2).
WPA2 is the current encryption standard for wireless networks. It is
strongly recommended that neither WEP nor WPA1 are used as the sole
mechanism to secure wireless communication, due to serious weaknesses. WPA1
is disabled by default and may be enabled using the option
"wpaprotos
wpa1,wpa2". For standard WPA networks which use
pre-shared keys (PSK), keys are configured using the
"wpakey
" option. WPA-Enterprise networks
require use of the wpa_supplicant package. The zyd
driver relies on the software 802.11 stack for both encryption and
decryption of data frames.
The zyd
driver can be configured at
runtime with ifconfig(8) or on boot
with hostname.if(5).
The adapter needs some firmware files, which are loaded on demand by the driver when a device is attached:
The following devices are known to be supported by the
zyd
driver:
The following example scans for available networks:
# ifconfig zyd0 scan
The following hostname.if(5) example configures zyd0 to join network “mynwid”, using WPA key “mywpakey”, obtaining an IP address using DHCP:
join mynwid wpakey mywpakey inet autoconf
arp(4), ifmedia(4), intro(4), netintro(4), usb(4), hostname.if(5), ifconfig(8)
The zyd
driver was written by
Florian Stoehr
<ich@florian-stoehr.de>,
Damien Bergamini
<damien.bergamini@free.fr>,
and Jonathan Gray
<jsg@openbsd.org>.
The zyd
driver does not support a lot of
the functionality available in the hardware. More work is required to
properly support the IBSS and power management features.
October 24, 2021 | OpenBSD-current |