-Intel PRO/Wireless 2200 802.11bg Driver for Linux
+Intel(R) PRO/Wireless 2915ABG Driver for Linux in support of:
+
+Intel(R) PRO/Wireless 2200BG Network Connection
+Intel(R) PRO/Wireless 2915ABG Network Connection
+
+Note: The Intel(R) PRO/Wireless 2915ABG Driver for Linux and Intel(R)
+PRO/Wireless 2200BG Driver for Linux is a unified driver that works on
+both hardware adapters listed above. In this document the Intel(R)
+PRO/Wireless 2915ABG Driver for Linux will be used to reference the
+unified driver.
+
+Copyright (C) 2004-2006, Intel Corporation
+
README.ipw2200
-October 13, 2004
-
-Release 0.12 Current Features
------------- ----- ----- ---- --- -- -
-- BSS mode (Infrastructure, Managed)
-- IBSS mode (Ad-Hoc)
-- WEP (OPEN and SHARED KEY mode)
-- 802.1x EAP via xsupplicant
-- Wireless Extension support
-- long/short preamble support
-- Full B and G rate support (2200 and 2915)
-- Full A rate support (2915 only)
-- Transmit power control
-- S state support (ACPI suspend/resume)
-
-TODO
------------- ----- ----- ---- --- -- -
-- Fix statistics returned by iwconfig and /proc/net/wireless
-- Add firmware restart backoff algorithm (see ipw2100 project)
-- Look into (and hopefully enable) Monitor/RFMon mode
-- Add WPA support
-
-
-Command Line Parameters
------------- ----- ----- ---- --- -- -
+Version: 1.0.8
+Date : October 20, 2005
+
+
+Index
+-----------------------------------------------
+0. IMPORTANT INFORMATION BEFORE USING THIS DRIVER
+1. Introduction
+1.1. Overview of features
+1.2. Module parameters
+1.3. Wireless Extension Private Methods
+1.4. Sysfs Helper Files
+1.5. Supported channels
+2. Ad-Hoc Networking
+3. Interacting with Wireless Tools
+3.1. iwconfig mode
+3.2. iwconfig sens
+4. About the Version Numbers
+5. Firmware installation
+6. Support
+7. License
+
+
+0. IMPORTANT INFORMATION BEFORE USING THIS DRIVER
+-----------------------------------------------
+
+Important Notice FOR ALL USERS OR DISTRIBUTORS!!!!
+
+Intel wireless LAN adapters are engineered, manufactured, tested, and
+quality checked to ensure that they meet all necessary local and
+governmental regulatory agency requirements for the regions that they
+are designated and/or marked to ship into. Since wireless LANs are
+generally unlicensed devices that share spectrum with radars,
+satellites, and other licensed and unlicensed devices, it is sometimes
+necessary to dynamically detect, avoid, and limit usage to avoid
+interference with these devices. In many instances Intel is required to
+provide test data to prove regional and local compliance to regional and
+governmental regulations before certification or approval to use the
+product is granted. Intel's wireless LAN's EEPROM, firmware, and
+software driver are designed to carefully control parameters that affect
+radio operation and to ensure electromagnetic compliance (EMC). These
+parameters include, without limitation, RF power, spectrum usage,
+channel scanning, and human exposure.
+
+For these reasons Intel cannot permit any manipulation by third parties
+of the software provided in binary format with the wireless WLAN
+adapters (e.g., the EEPROM and firmware). Furthermore, if you use any
+patches, utilities, or code with the Intel wireless LAN adapters that
+have been manipulated by an unauthorized party (i.e., patches,
+utilities, or code (including open source code modifications) which have
+not been validated by Intel), (i) you will be solely responsible for
+ensuring the regulatory compliance of the products, (ii) Intel will bear
+no liability, under any theory of liability for any issues associated
+with the modified products, including without limitation, claims under
+the warranty and/or issues arising from regulatory non-compliance, and
+(iii) Intel will not provide or be required to assist in providing
+support to any third parties for such modified products.
+
+Note: Many regulatory agencies consider Wireless LAN adapters to be
+modules, and accordingly, condition system-level regulatory approval
+upon receipt and review of test data documenting that the antennas and
+system configuration do not cause the EMC and radio operation to be
+non-compliant.
+
+The drivers available for download from SourceForge are provided as a
+part of a development project. Conformance to local regulatory
+requirements is the responsibility of the individual developer. As
+such, if you are interested in deploying or shipping a driver as part of
+solution intended to be used for purposes other than development, please
+obtain a tested driver from Intel Customer Support at:
+
+http://support.intel.com/support/notebook/sb/CS-006408.htm
+
+
+1. Introduction
+-----------------------------------------------
+The following sections attempt to provide a brief introduction to using
+the Intel(R) PRO/Wireless 2915ABG Driver for Linux.
+
+This document is not meant to be a comprehensive manual on
+understanding or using wireless technologies, but should be sufficient
+to get you moving without wires on Linux.
+
+For information on building and installing the driver, see the INSTALL
+file.
+
+
+1.1. Overview of Features
+-----------------------------------------------
+The current release (1.0.8) supports the following features:
+
++ BSS mode (Infrastructure, Managed)
++ IBSS mode (Ad-Hoc)
++ WEP (OPEN and SHARED KEY mode)
++ 802.1x EAP via wpa_supplicant and xsupplicant
++ Wireless Extension support
++ Full B and G rate support (2200 and 2915)
++ Full A rate support (2915 only)
++ Transmit power control
++ S state support (ACPI suspend/resume)
+
+The following features are currently enabled, but not officially
+supported:
+
++ WPA
++ long/short preamble support
++ Monitor mode (aka RFMon)
+
+The distinction between officially supported and enabled is a reflection
+on the amount of validation and interoperability testing that has been
+performed on a given feature.
+
+
+
+1.2. Command Line Parameters
+-----------------------------------------------
+
+Like many modules used in the Linux kernel, the Intel(R) PRO/Wireless
+2915ABG Driver for Linux allows configuration options to be provided
+as module parameters. The most common way to specify a module parameter
+is via the command line.
+
+The general form is:
+
+% modprobe ipw2200 parameter=value
+
+Where the supported parameter are:
+
associate
Set to 0 to disable the auto scan-and-associate functionality of the
- driver. Default is 1 (auto-associate)
+ driver. If disabled, the driver will not attempt to scan
+ for and associate to a network until it has been configured with
+ one or more properties for the target network, for example configuring
+ the network SSID. Default is 1 (auto-associate)
+
+ Example: % modprobe ipw2200 associate=0
auto_create
Set to 0 to disable the auto creation of an Ad-Hoc network
debug
If using a debug build, this is used to control the amount of debug
- info is logged. See the 'dval' and 'load' script for more info on
- how to use this.
+ info is logged. See the 'dvals' and 'load' script for more info on
+ how to use this (the dvals and load scripts are provided as part
+ of the ipw2200 development snapshot releases available from the
+ SourceForge project at http://ipw2200.sf.net)
+
+ led
+ Can be used to turn on experimental LED code.
+ 0 = Off, 1 = On. Default is 0.
+
+ mode
+ Can be used to set the default mode of the adapter.
+ 0 = Managed, 1 = Ad-Hoc, 2 = Monitor
- ifname
- Can be used to override the default interface name of eth%. For
- example:
- modprobe ipw2200 ifname=wlan%d
+1.3. Wireless Extension Private Methods
+-----------------------------------------------
- You can also specify a specific interface number -- be warned
- that if that number conflicts with an already assigned interface
- the driver will not load correctly.
+As an interface designed to handle generic hardware, there are certain
+capabilities not exposed through the normal Wireless Tool interface. As
+such, a provision is provided for a driver to declare custom, or
+private, methods. The Intel(R) PRO/Wireless 2915ABG Driver for Linux
+defines several of these to configure various settings.
- mode
- Can be used to set the default mode of the adapter.
- 0 = Managed, 1 = Ad-Hoc
+The general form of using the private wireless methods is:
+
+ % iwpriv $IFNAME method parameters
+
+Where $IFNAME is the interface name the device is registered with
+(typically eth1, customized via one of the various network interface
+name managers, such as ifrename)
+
+The supported private methods are:
-Wireless Extension Private Methods
------------- ----- ----- ---- --- -- -
get_mode
Can be used to report out which IEEE mode the driver is
configured to support. Example:
6 802.11bg
7 802.11abg (2915 only)
+ get_preamble
+ Can be used to report configuration of preamble length.
+
+ set_preamble
+ Can be used to set the configuration of preamble length:
+
+ Usage:
+ % iwpriv eth1 set_preamble {mode}
+ Where {mode} is one of:
+ 1 Long preamble only
+ 0 Auto (long or short based on connection)
+
+
+1.4. Sysfs Helper Files:
+-----------------------------------------------
+
+The Linux kernel provides a pseudo file system that can be used to
+access various components of the operating system. The Intel(R)
+PRO/Wireless 2915ABG Driver for Linux exposes several configuration
+parameters through this mechanism.
+
+An entry in the sysfs can support reading and/or writing. You can
+typically query the contents of a sysfs entry through the use of cat,
+and can set the contents via echo. For example:
+
+% cat /sys/bus/pci/drivers/ipw2200/debug_level
+
+Will report the current debug level of the driver's logging subsystem
+(only available if CONFIG_IPW_DEBUG was configured when the driver was
+built).
+
+You can set the debug level via:
+
+% echo $VALUE > /sys/bus/pci/drivers/ipw2200/debug_level
+
+Where $VALUE would be a number in the case of this sysfs entry. The
+input to sysfs files does not have to be a number. For example, the
+firmware loader used by hotplug utilizes sysfs entries for transfering
+the firmware image from user space into the driver.
+
+The Intel(R) PRO/Wireless 2915ABG Driver for Linux exposes sysfs entries
+at two levels -- driver level, which apply to all instances of the driver
+(in the event that there are more than one device installed) and device
+level, which applies only to the single specific instance.
+
-Sysfs Helper Files: (NOTE: All of these are only useful for developers)
------------- ----- ----- ---- --- -- -
+1.4.1 Driver Level Sysfs Helper Files
+-----------------------------------------------
------ Driver Level ------
For the driver level files, look in /sys/bus/pci/drivers/ipw2200/
debug_level
This controls the same global as the 'debug' module parameter
------ Device Level ------
+
+
+1.4.2 Device Level Sysfs Helper Files
+-----------------------------------------------
+
For the device level files, look in
/sys/bus/pci/drivers/ipw2200/{PCI-ID}/
For example:
/sys/bus/pci/drivers/ipw2200/0000:02:01.0
-For the device level files, see /sys/bus/pci/[drivers/ipw2200:
-
- command_event_reg
- read access to the the Command Event register
-
- eeprom
- reading from this fill will cause our private copy of the
- contents of the EEPROM to be flushed to the log
-
- eeprom_sram
- reading this file will behave like the 'eeprom' file, except
- that instead of pulling from the device's cached copy of the
- eeprom data, the region of the device's sram that should
- hold eeprom data is dumped.
-
- eeprom_clear
- reading from this file will cause the eeprom info in sram to be
- cleared.
-
- error_log
- reading this file will cause the contents of the device's error
- log to be flushed to our log. normally the event_log is empty,
- but if the device's fw get's into an odd state, this log contains
- some hints.
-
- fw_date
- read-only access to the firmware release date
-
- fw_version
- read-only access to the firmware release version
+For the device level files, see /sys/bus/pci/drivers/ipw2200:
rf_kill
read -
0 = RF kill not enabled (radio on)
- 1 = HW based RF kill active (radio off)
- 2 = SW based RF kill active (radio off)
+ 1 = SW based RF kill active (radio off)
+ 2 = HW based RF kill active (radio off)
+ 3 = Both HW and SW RF kill active (radio off)
write -
0 = If SW based RF kill active, turn the radio back on
1 = If radio is on, activate SW based RF kill
NOTE: If you enable the SW based RF kill and then toggle the HW
- based RF kill from ON -> OFF -> ON, the radio will come back on
- (resetting the SW based RF kill to the 'radio on' state)
+ based RF kill from ON -> OFF -> ON, the radio will NOT come back on
ucode
read-only access to the ucode version number
- rtc
- read-only access the the device's real-time clock
+ led
+ read -
+ 0 = LED code disabled
+ 1 = LED code enabled
+ write -
+ 0 = Disable LED code
+ 1 = Enable LED code
+
+ NOTE: The LED code has been reported to hang some systems when
+ running ifconfig and is therefore disabled by default.
+
+
+1.5. Supported channels
+-----------------------------------------------
+
+Upon loading the Intel(R) PRO/Wireless 2915ABG Driver for Linux, a
+message stating the detected geography code and the number of 802.11
+channels supported by the card will be displayed in the log.
+
+The geography code corresponds to a regulatory domain as shown in the
+table below.
+
+ Supported channels
+Code Geography 802.11bg 802.11a
+
+--- Restricted 11 0
+ZZF Custom US/Canada 11 8
+ZZD Rest of World 13 0
+ZZA Custom USA & Europe & High 11 13
+ZZB Custom NA & Europe 11 13
+ZZC Custom Japan 11 4
+ZZM Custom 11 0
+ZZE Europe 13 19
+ZZJ Custom Japan 14 4
+ZZR Rest of World 14 0
+ZZH High Band 13 4
+ZZG Custom Europe 13 4
+ZZK Europe 13 24
+ZZL Europe 11 13
+
+
+2. Ad-Hoc Networking
+-----------------------------------------------
+
+When using a device in an Ad-Hoc network, it is useful to understand the
+sequence and requirements for the driver to be able to create, join, or
+merge networks.
+
+The following attempts to provide enough information so that you can
+have a consistent experience while using the driver as a member of an
+Ad-Hoc network.
+
+2.1. Joining an Ad-Hoc Network
+-----------------------------------------------
+
+The easiest way to get onto an Ad-Hoc network is to join one that
+already exists.
+
+2.2. Creating an Ad-Hoc Network
+-----------------------------------------------
+
+An Ad-Hoc networks is created using the syntax of the Wireless tool.
+
+For Example:
+iwconfig eth1 mode ad-hoc essid testing channel 2
+
+2.3. Merging Ad-Hoc Networks
+-----------------------------------------------
+
+
+3. Interaction with Wireless Tools
+-----------------------------------------------
- [in]direct_byte
- [in]direct_word
- enables read-only access to the device's sram by first writing
- the address of the data to read, and then reading from the file
- will return the word/byte the address points to.
+3.1 iwconfig mode
+-----------------------------------------------
-Support
------------- ----- ----- ---- --- -- -
+When configuring the mode of the adapter, all run-time configured parameters
+are reset to the value used when the module was loaded. This includes
+channels, rates, ESSID, etc.
+
+3.2 iwconfig sens
+-----------------------------------------------
+
+The 'iwconfig ethX sens XX' command will not set the signal sensitivity
+threshold, as described in iwconfig documentation, but rather the number
+of consecutive missed beacons that will trigger handover, i.e. roaming
+to another access point. At the same time, it will set the disassociation
+threshold to 3 times the given value.
+
+
+4. About the Version Numbers
+-----------------------------------------------
+
+Due to the nature of open source development projects, there are
+frequently changes being incorporated that have not gone through
+a complete validation process. These changes are incorporated into
+development snapshot releases.
+
+Releases are numbered with a three level scheme:
+
+ major.minor.development
+
+Any version where the 'development' portion is 0 (for example
+1.0.0, 1.1.0, etc.) indicates a stable version that will be made
+available for kernel inclusion.
+
+Any version where the 'development' portion is not a 0 (for
+example 1.0.1, 1.1.5, etc.) indicates a development version that is
+being made available for testing and cutting edge users. The stability
+and functionality of the development releases are not know. We make
+efforts to try and keep all snapshots reasonably stable, but due to the
+frequency of their release, and the desire to get those releases
+available as quickly as possible, unknown anomalies should be expected.
+
+The major version number will be incremented when significant changes
+are made to the driver. Currently, there are no major changes planned.
+
+5. Firmware installation
+----------------------------------------------
+
+The driver requires a firmware image, download it and extract the
+files under /lib/firmware (or wherever your hotplug's firmware.agent
+will look for firmware files)
+
+The firmware can be downloaded from the following URL:
+
+ http://ipw2200.sf.net/
+
+
+6. Support
+-----------------------------------------------
+
+For direct support of the 1.0.0 version, you can contact
+http://supportmail.intel.com, or you can use the open source project
+support.
For general information and support, go to:
http://ipw2200.sf.net/
-License
------------- ----- ----- ---- --- -- -
- Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved.
+7. License
+-----------------------------------------------
+
+ Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License.
+ under the terms of the GNU General Public License version 2 as
+ published by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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