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ZYD(4) FreeBSD Kernel Interfaces Manual ZYD(4) NAME zyd -- ZyDAS ZD1211/ZD1211B USB IEEE 802.11b/g wireless 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 zyd device wlan device wlan_amrr Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): if_zyd_load="YES" DESCRIPTION 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: BSS mode Also known as infrastructure mode, this is used when asso- ciating with an access point, through which all traffic passes. This mode is the default. monitor mode In this mode the driver is able to receive packets without associating with an access point. This disables the internal receive filter and enables the card to capture packets from networks which it wouldn't normally have access to, or to scan for access points. zyd supports software WEP. Wired Equivalent Privacy (WEP) is the de facto encryption standard for wireless networks. It can be typically configured in one of three modes: no encryption; 40-bit encryption; or 104-bit encryption. Unfortunately, due to serious weaknesses in WEP pro- tocol it is strongly recommended that it not be used as the sole mecha- nism to secure wireless communication. WEP is not enabled by default. HARDWARE The following devices are known to be supported by the zyd driver: 3COM 3CRUSB10075 Acer WLAN-G-US1 Airlink+ AWLL3025 Airlink 101 AWLL3026 AOpen 802.11g WL54 Asus A9T integrated wireless Asus WL-159g Belkin F5D7050 v.4000 Billion BiPAC 3011G Buffalo WLI-U2-KG54L CC&C WL-2203B DrayTek Vigor 550 Edimax EW-7317UG Edimax EW-7317LDG Fiberline Networks WL-43OU iNexQ UR055g Linksys WUSBF54G Longshine LCS-8131G3 MSI US54SE MyTek MWU-201 USB adapter Philips SNU5600 Planet WL-U356 Planex GW-US54GZ Planex GW-US54GZL Planex GW-US54Mini Safecom SWMULZ-5400 Sagem XG 760A Sagem XG 76NA Sandberg Wireless G54 USB Sitecom WL-113 SMC SMCWUSB-G Sweex wireless USB 54 Mbps Tekram/Siemens USB adapter Telegent TG54USB Trendnet TEW-424UB Trendnet TEW-429UB TwinMOS G240 Unicorn WL-54G US Robotics 5423 X-Micro XWL-11GUZX Yakumo QuickWLAN USB Zonet ZEW2501 ZyXEL ZyAIR G-220 EXAMPLES The following example configures zyd0 to join whatever network is avail- able on boot, using WEP key ``0x1deadbeef1'', channel 11: inet 192.168.1.1 netmask 255.255.255.0 wepkey 0x1deadbeef1 channel 11 Configure zyd0 for WEP, using hex key ``0x1deadbeef1'': # ifconfig zyd0 wepkey 0x1deadbeef1 Join an existing BSS network, ``my_net'': # ifconfig zyd0 192.168.0.2 netmask 0xffffff00 ssid my_net DIAGNOSTICS zyd%d: could not load firmware (error=%d) An error occurred while attempting to upload the firmware to the onboard microcontroller unit. zyd%d: could not send command (error=%s) An attempt to send a command to the firmware failed. zyd%d: sorry, radio %s is not supported yet Support for the specified radio chip is not yet implemented in the driver. The device will not attach. zyd%d: device version mismatch: 0x%x (only >= 43.30 supported) Early revisions of the ZD1211 chipset are not supported by this driver. The device will not attach. zyd%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 arp(4), intro(4), netintro(4), usb(4), wlan(4), wlan_amrr(4), ifconfig(8) AUTHORS The zyd driver was written by Florian Stoehr <ich@florian-stoehr.de>, Damien Bergamini <damien@openbsd.org>, and Jonathan Gray <jsg@openbsd.org>. CAVEATS 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. FreeBSD 11.1 November 1, 2008 FreeBSD 11.1
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | EXAMPLES | DIAGNOSTICS | SEE ALSO | AUTHORS | CAVEATS
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