Open Software Announcements - ZyXEL Communications G-570U User Manual

Notice
Information herein is subject to change without notice. Companies, names, and data used in
examples herein are fictitious unless otherwise noted. No part may be reproduced or
transmitted in any form or by any means, electronic or mechanical, for any purpose, except the
express written permission of ZyXEL Communications Corporation.
This product include eCos redboot under eCose License (GPL-compatible).
eCos LICENSE Overview
As of May 2002, eCos is released under a modified version of the well known GNU General
Public License (GPL). The eCos license is officially recognised as a GPL-compatible Free
Software License. An exception clause has been added which limits the circumstances in
which the license applies to other code when used in conjunction with eCos. The exception
clause is as follows:
As a special exception, if other files instantiate templates or use macros or inline functions
from this file, or you compile this file and link it with other works to produce a work based on
this file, this file does not by itself cause the resulting work to be covered by the GNU General
Public License. However the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work based on this file might
be covered by the GNU General Public License.
The goal of the license is to serve the eCos user community as a whole. It allows all eCos users
to develop products without paying anybody anything, no matter how many developers are
working on the product or how many units will be shipped. The license also guarantees that
the eCos source code will always be freely available. This applies not only to the core eCos
code itself but also to any changes that anybody makes to the core. In particular, it should
prevent any company or individual contributing code to the system and then later claiming that
all eCos users are now guilty of copyright or patent infringements and have to pay royalties. It
should also prevent any company from making some small improvements, calling the result a
completely new system, and releasing this under a new and less generous license.
The license does not require users to release the source code of any applications that are
developed with eCos. However, if anybody makes any changes to code covered by the eCos
license, or writes new files derived in any way from eCos code, then we believe that the entire
user community should have the opportunity to benefit from this. The license stipulates that
these changes must be made available in source code form to all recipients of binaries based
Appendix E Open Software Announcements

Open Software Announcements

ZyXEL G-570U User's Guide
Appendix E
153