iwlwifi-1.2.25中的INSTALL文件

 
Intel Wireless Link Wifi (iwlwifi) driver for Linux* in support of:


Intel(R) Wireless WiFi Link 4965AGN
Intel(R) PRO/Wireless 3945ABG/BG Network Connection Adapter


Copyright (C) 2005 - 2007, Intel Corporation


INSTALL


Version: 1.2.25
Date   : February 04, 2008




Index
-----------------------------------------------
0.  IMPORTANT INFORMATION BEFORE USING THIS DRIVER
1.  QUICK INSTALL STEPS
2.  INSTALLING IN YOUR DISTRIBUTION
4.  BUILD/INSTALLATION OVERVIEW
5.  GETTING THE SOURCE
6.  KERNEL REQUIREMENTS - 2.6.18+
7.  KERNEL REQUIREMENTS - Configuration
10. BUILDING EXTERNAL (outside of the kernel tree)
11. INSTALLING MICROCODE
13. LOADING THE DRIVER




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. QUICK INSTALL STEPS
-----------------------------------------------


The following provides steps that can be used to manually install and 
load the driver.  


Lines beginning with % can be run as any user.  Lines beginning with # 
must be run as root.


First, you build and install the mac80211 subsystem.  See:


http://intellinuxwireless.org/mac80211

After you download and patch the tree you need to build the kernel, 
making sure all options under mac80211 are enabled.  


Once the mac80211 kernel is installed and running, you build the 
iwlwifi.ko module:


% tar xzvf iwlwifi-1.2.25.tgz
% cd iwlwifi-1.2.25
% make


Now you install the firmware.  First, determine where to install the 
file.  You can look in the hotplug script '/etc/hotplug/firmware.agent' 
to determine which directory FIRMWARE_DIR is set to when the script 
runs.  The following command will determine that for you:


% DIR=$(sed -ne "s:^FIRMWARE_DIR=\([^, ]*\).*:\1:p" \
/etc/hotplug/firmware.agent)


NOTE:  'DIR' above typically works out to /lib/firmware.


To see what the above command found, type:


% echo 


Now you can fetch and install the uCode (below example is for 3945,
you should be able to do the same for 4965):


% wget http://intellinuxwireless.org/iwlwifi/downloads/iwlwifi-3945-ucode-2.14.1.5.tgz .
% tar xzvf iwlwifi-3945-ucode-2.14.1.5.tgz 
% less iwlwifi-3945-ucode-2.14.1.5/LICENSE.iwlwifi-3945-ucode
% less iwlwifi-3945-ucode-2.14.1.5/README.iwlwifi-3945-ucode
% cp iwlwifi-3945-ucode-2.14.1.5/iwlwifi-3945.ucode $DIR


And now you can try to load the module, first clearing the kernel log:


% ./load debug=0


Finally you can check to see if things worked:


% ifconfig wlan0 up
% iwconfig wlan0


You should see something like:


wlan0      unassociated  ESSID:off/any
          Mode:Managed  Channel=0  Access Point: 00:00:00:00:00:00
          Bit Rate=0 kb/s   Tx-Power=20 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


And now you are ready to go.  


First, find your AP:


% iwlist scan


Configure to use AP using iwconfig:


% iwconfig wlan0 channel <channel>
% iwconfig wlan0 key <key>
% iwconfig wlan0 essid <name>
% iwconfig wlan0 ap <mac>


wlan0      IEEE 802.11g  ESSID:"......."
          Mode:Managed  Frequency:.....  Access Point: ..:..:..:..:..:..
          Bit Rate=54 Mb/s   Tx-Power=20 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:....-....-..   Security mode:open
          Power Management:off
          Link Quality=98/100  Signal level=-53 dBm  Noise level=-81 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0


The specifics of how to bring up the interface is heavily dependent on 
the specific distribution you are using from here on out.


If things don't work, try loading the driver with the debug level 
turned, retry the operation, and check the kernel log:


% ./load debug=0x43fff
< misc. commands >
% dmesg -c | less -S




2.  INSTALLING IN YOUR LINUX DISTRIBUTION
-----------------------------------------------
Since each distribution is different, you can not cover all of the steps that
may be required to install and configure your device for the particular 
distribution you are using.


Please refer to your distribution's documentation for information on how
to configure a wireless network driver within your environment.




3.  BUILD/INSTALLATION OVERVIEW 
-----------------------------------------------


Installation of the current Intel PRO/Wireless 3945ABG Network Connection
driver for Linux involves several steps:


1)  Get the iwlwifi source and microcode.  See:
http://intellinuxwireless.org/?p=iwlwifi


2)  Get mac80211 subsystem.  Follow its README for installation 
    steps.  See:
http://intellinuxwireless.org/?p=mac80211


3)  Check for certain capabilities in your kernel, and rebuild the kernel
    if necessary.


4)  Build and install the kernel with mac80211 kernel.


5)  Build and install the current iwlwifi module.


6)  Download and install current microcode.


7)  Read README.iwlwifi for much helpful information on how to use the
    Intel PRO/Wireless 3945ABG Network Connection driver for Linux.




4.  GETTING THE SOURCE AND FIRMWARE
-----------------------------------------------


You can get the latest driver source code tarball and microcode from:


http://intellinuxwireless.org/iwlwifi


You must also obtain and install the mac80211 subsystem:


http://intellinuxwireless.org/mac80211


Each package contains installation steps on how to install the files 
onto your system.  You'll need to unpack the tarballs and then you 
can view the INSTALL files. (Below example is for 3945, you should be
able to do the same for 4965):


% tar xzvf iwlwifi-1.2.25.tgz
% tar xzvf iwlwifi-3945-ucode-2.14.1.5.tgz
% less iwlwifi-1.2.25/INSTALL  
% less iwlwifi-3945-ucode-2.14.1.5/INSTALL  






6.  KERNEL REQUIREMENTS - 2.6.18+
-----------------------------------------------


The Intel PRO/Wireless 3945ABG Network Connection driver for Linux is 
currently maintained only for 2.6.18+ versions of the Linux kernel, 
but may work in older versions.  We try (when possible) to provide 
backward compatibility patches to the driver to keep it working for as 
long as possible with legacy kernels.




7.  KERNEL REQUIREMENTS - Configuration
-----------------------------------------------


Your kernel must be configured and compiled to provide certain capabilities
needed by the mac80211 and iwlwifi source files.


You can verify that your running kernel is configured properly by
searching the following file for the #define entries described below:


/lib/modules/$(uname -r)/build/include/linux/autoconf.h


If you need to change anything in your kernel configuration (e.g. using
make menuconfig), make sure that you also rebuild, install, and reboot to the
new kernel image before proceding with your iwlwifi driver upgrade.  For help
or instructions on configuring and building the kernel, please consult the
documentation contained in your distribution.


MAKE SURE THAT THE FOLLOWING CAPABILITIES ARE ENABLED:


~~~~~~~~~~~~~~~~~~~~~~~~~~~
#define CONFIG_FW_LOADER 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~
The driver loads the microcode image via the Linux firmware hotplug 
capability (see later section on loading microcode).  This is enabled 
via menuconfig:


        Device Drivers ->
           Generic Driver Options ->
              Hotplug firmware loading support


~~~~~~~~~~~~~~~~~~~~~~~~~~~
#define CONFIG_MAC80211 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~
The driver requires the mac80211 subsystem be enabled in your kernel.
This is enabled via menuconfig:


        Networking ->
  Generic IEEE 802.11 Networking Stack (mac80211)




10.  BUILDING EXTERNAL (outside kernel source tree)
-----------------------------------------------


Unpack the iwlwifi-1.2.25.tgz archive:


% tar xzvf iwlwifi-1.2.25.tgz
% cd iwlwifi-1.2.25


The driver package contains a Makefile that can be used for building the 
driver outside of the kernel tree.  To build it for the currently running 
kernel, simply type:


% make  <--- You may need to run this as root


To build it for a different kernel than the running one, use the KSRC
parameter:


% make KSRC=/path/to/kernel


If you wish to install the modules into your currently running kernel you can
do so via:


# make install <--- You need to run this as root


If you wish to install the modules into other place, you can do so via:


# make install KMISC=/path/to/install <--- You need to run as root






11. INSTALLING MICROCODE
-----------------------------------------------


Before you can load the driver, you need the microcode image.  You can find
instructions for obtaining the microcode by going to:


http://intellinuxwireless.org/?p=iwlwifi&n=downloads


(Below example is for 3945, you should be able to do the same for 4965.)


Once you have the microcode archive, untar it:


% tar xzvf iwlwifi-3945-ucode-2.14.1.5.tgz


This will create a new directory.  In it you should find three files:


LICENSE.iwlwifi-3945-ucode   A copy of the microcode license
README.iwlwifi-3945-ucode    Information about the microcode
iwlwifi-3945.ucode           Binary microcode file


You need to place the iwlwifi-3945.ucode file into the hotplug firmware 
directory, e.g. /usr/lib/hotplug/firmware/  or  /lib/firmware/.  Check the 
contents of the /etc/hotplug/firmware.agent to determine the specific location 
for your distribution.  Most newer systems default to /lib/firmware.


If you do not have /etc/hotplug/firmware.agent, then you need to upgrade your
hotplug scripts to something later than 2003_10_07.  You can obtain the latest
hotplug scripts via the following link (look for hotplug,
not firmwarehotplug): 


http://sourceforge.net/project/showfiles.php?group_id=17679


Also, make sure that your kernel supports the hotplug firmware loader.  
See the section above, KERNEL REQUIREMENTS -- Configuration, on 
CONFIG_FW_LOADER .


NOTE:  Loading this microcode image will not affect the hardware in any other
operating systems you may boot.  Each OS keeps its own copy of the microcode,
and loads its own copy onto the hardware each time the OS initializes the
card.




12.  LOADING THE DRIVER
-----------------------------------------------


See the README.iwlwifi for instructions on loading and using the driver.


------------------------------
Copyright (C) 2005 - 2007, Intel Corporation


INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS.  
EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, 
INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR 
IMPLIED WARRANTY RELATING TO SALE AND/OR USE OF INTEL PRODUCTS, INCLUDING 
LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, 
MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER 
INTELLECTUAL PROPERTY RIGHT. 


This document is subject to change without notice. 


* Other names and brands may be claimed as the property of others.

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