copying

Atheros公司AR8121/AR8113无线网卡的Linux驱动

"This software program is licensed subject to the GNU General Public License 
(GPL). Version 2, June 1991, available at 
<http://www.fsf.org/copyleft/gpl.html>"

GNU General Public License 

Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.  
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA

Everyone is permitted to copy and distribute verbatim copies of this license
document, but changing it is not allowed.

Preamble

The licenses for most software are designed to take away your freedom to 
share and change it. By contrast, the GNU General Public License is intended
to guarantee your freedom to share and change free software--to make sure 
the software is free for all its users. This General Public License applies 
to most of the Free Software Foundation's software and to any other program 
whose authors commit to using it. (Some other Free Software Foundation 
software is covered by the GNU Library General Public License instead.) You 
can apply it to your programs, too.

When we speak of free software, we are referring to freedom, not price. Our
General Public Licenses are designed to make sure that you have the freedom 
to distribute copies of free software (and charge for this service if you 
wish), that you receive source code or can get it if you want it, that you 
can change the software or use pieces of it in new free programs; and that 
you know you can do these things.

To protect your rights, we need to make restrictions that forbid anyone to 
deny you these rights or to ask you to surrender the rights. These 
restrictions translate to certain responsibilities for you if you distribute
copies of the software, or if you modify it.

For example, if you distribute copies of such a program, whether gratis or 
for a fee, you must give the recipients all the rights that you have. You 
must make sure that they, too, receive or can get the source code. And you 
must show them these terms so they know their rights.
 
We protect your rights with two steps: (1) copyright the software, and (2) 
offer you this license which gives you legal permission to copy, distribute 
and/or modify the software. 

Also, for each author's protection and ours, we want to make certain that 
everyone understands that there is no warranty for this free software. If 
the software is modified by someone else and passed on, we want its 
recipients to know that what they have is not the original, so that any 
problems introduced by others will not reflect on the original authors' 
reputations. 

Finally, any free program is threatened constantly by software patents. We 
wish to avoid the danger that redistributors of a free program will 
individually obtain patent licenses, in effect making the program 
proprietary. To prevent this, we have made it clear that any patent must be 
licensed for everyone's free use or not licensed at all. 

The precise terms and conditions for copying, distribution and modification 
follow. 

TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains a notice
   placed by the copyright holder saying it may be distributed under the 
   terms of this General Public License. The "Program", below, refers to any
   such program or work, and a "work based on the Program" means either the 
   Program or any derivative work under copyright law: that is to say, a 
   work containing the Program or a portion of it, either verbatim or with 
   modifications and/or translated into another language. (Hereinafter, 
   translation is included without limitation in the term "modification".) 
   Each licensee is addressed as "you". 

   Activities other than copying, distribution and modification are not 
   covered by this License; they are outside its scope. The act of running 
   the Program is not restricted, and the output from the Program is covered 
   only if its contents constitute a work based on the Program (independent 
   of having been made by running the Program). Whether that is true depends
   on what the Program does. 

1. You may copy and distribute verbatim copies of the Program's source code 
   as you receive it, in any medium, provided that you conspicuously and 
   appropriately publish on each copy an appropriate copyright notice and 
   disclaimer of warranty; keep intact all the notices that refer to this 
   License and to the absence of any warranty; and give any other recipients 
   of the Program a copy of this License along with the Program. 

   You may charge a fee for the physical act of transferring a copy, and you 
   may at your option offer warranty protection in exchange for a fee. 

2. You may modify your copy or copies of the Program or any portion of it, 
   thus forming a work based on the Program, and copy and distribute such 
   modifications or work under the terms of Section 1 above, provided that 
   you also meet all of these conditions: 

   * a) You must cause the modified files to carry prominent notices stating 
        that you changed the files and the date of any change. 

   * b) You must cause any work that you distribute or publish, that in 
        whole or in part contains or is derived from the Program or any part 
        thereof, to be licensed as a whole at no charge to all third parties
        under the terms of this License. 

   * c) If the modified program normally reads commands interactively when 
        run, you must cause it, when started running for such interactive 
        use in the most ordinary way, to print or display an announcement 
        including an appropriate copyright notice and a notice that there is
        no warranty (or else, saying that you provide a warranty) and that 
        users may redistribute the program under these conditions, and 
        telling the user how to view a copy of this License. (Exception: if 
        the Program itself is interactive but does not normally print such 
        an announcement, your work based on the Program is not required to 
        print an announcement.) 

   These requirements apply to the modified work as a whole. If identifiable 
   sections of that work are not derived from the Program, and can be 
   reasonably considered independent and separate works in themselves, then 
   this License, and its terms, do not apply to those sections when you 
   distribute them as separate works. But when you distribute the same 
   sections as part of a whole which is a work based on the Program, the 
   distribution of the whole must be on the terms of this License, whose 
   permissions for other licensees extend to the entire whole, and thus to 
   each and every part regardless of who wrote it. 

   Thus, it is not the intent of this section to claim rights or contest 
   your rights to work written entirely by you; rather, the intent is to 
   exercise the right to control the distribution of derivative or 
   collective works based on the Program. 

   In addition, mere aggregation of another work not based on the Program 
   with the Program (or with a work based on the Program) on a volume of a 
   storage or distribution medium does not bring the other work under the 
   scope of this License. 

3. You may copy and distribute the Program (or a work based on it, under 
   Section 2) in object code or executable form under the terms of Sections 
   1 and 2 above provided that you also do one of the following: 

   * a) Accompany it with the complete corresponding machine-readable source 
        code, which must be distributed under the terms of Sections 1 and 2 
        above on a medium customarily used for software interchange; or, 

   * b) Accompany it with a written offer, valid for at least three years, 
        to give any third party, for a charge no more than your cost of 
        physically performing source distribution, a complete machine-
        readable copy of the corresponding source code, to be distributed 
        under the terms of Sections 1 and 2 above on a medium customarily 
        used for software interchange; or, 

   * c) Accompany it with the information you received as to the offer to 
        distribute corresponding source code. (This alternative is allowed 
        only for noncommercial distribution and only if you received the 
        program in object code or executable form with such an offer, in 
        accord with Subsection b above.) 

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   If distribution of executable or object code is made by offering access 
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