iwi man page on OpenBSD

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IWI(4)			  OpenBSD Programmer's Manual			IWI(4)

NAME
     iwi - Intel PRO/Wireless 2200BG/2225BG/2915ABG IEEE 802.11a/b/g wireless
     network device

SYNOPSIS
     iwi* at pci?

DESCRIPTION
     The iwi driver provides support for Intel PRO/Wireless 2200BG/2915ABG
     Mini PCI and 2225BG PCI network adapters.

     These are the modes the iwi driver can operate in:

     BSS mode	    Also known as infrastructure mode, this is used when
		    associating with an access point, through which all
		    traffic passes.  This mode is the default.

     IBSS mode	    Also known as IEEE ad-hoc mode or peer-to-peer mode.  This
		    is the standardized method of operating without an access
		    point.  Stations associate with a service set.  However,
		    actual connections between stations are peer-to-peer.

     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.

     The iwi 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 iwi driver relies on
     the software 802.11 stack for both encryption and decryption of data
     frames.

     The iwi driver can be configured at runtime with ifconfig(8) or on boot
     with hostname.if(5).

FILES
     The driver needs at least version 3.1 of the following firmware files,
     which are loaded when an interface is brought up:

	   /etc/firmware/iwi-bss
	   /etc/firmware/iwi-ibss
	   /etc/firmware/iwi-monitor

     These firmware files are not free because Intel refuses to grant
     distribution rights without contractual obligations.  As a result, even
     though OpenBSD includes the driver, the firmware files cannot be included
     and users have to download these files on their own.  The official person
     to state your views to about this issue is majid.awad@intel.com.

     A prepackaged version of the firmware, designed to be used with
     pkg_add(1), can be found at:

	http://damien.bergamini.free.fr/packages/openbsd/iwi-firmware-3.1.tgz

EXAMPLES
     The following hostname.if(5) example configures iwi0 to join whatever
     network is available on boot, using WEP key ``0x1deadbeef1'', channel 11,
     obtaining an IP address using DHCP:

	   dhcp NONE NONE NONE nwkey 0x1deadbeef1 chan 11

     Configure iwi0 to join network ``my_net'' using WPA with passphrase
     ``my_passphrase'':

	   # ifconfig iwi0 nwid my_net wpakey my_passphrase

     Join an existing BSS network, ``my_net'':

	   # ifconfig iwi0 192.168.1.1 netmask 0xffffff00 nwid my_net

DIAGNOSTICS
     iwi%d: device timeout  The driver will reset the hardware.	 This should
     not happen.

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

SEE ALSO
     pkg_add(1), arp(4), ifmedia(4), intro(4), netintro(4), pci(4),
     hostname.if(5), ifconfig(8)

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

OpenBSD 4.9		       November 1, 2010			   OpenBSD 4.9
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