User manual

CONFIDENTIAL Protium Technologies, Inc. 4050-9901
Rev No: 05
5 GHz RF Modem 31-Jan-2007 47 of 84
This document and information contained herein is subject to the restrictions set forth on the title page .
8 Software Licenses
8.1 Open Source Software
The operating system used by the Model 4050 is uClinux 2.4. This is derived from the Linux 2.4 kernel, which is
copyrighted by Linus Torvalds and others and licensed under the GNU General Public License (GPL) Version 2.
The C library used in the system is uClibc, which is licensed under the GNU Library General Public License
(LGPL) Version 2.
The GNU General Public License and Library General Public License themselves are copyrighted by the Free
Software Foundation.
The port of uClinux to the Xilinx Microblaze processor is primarily the work of John Williams,
[e-mail], and most (if not all) of that work is copyrighted by him. These modifications to the
kernel are derivative work and are consequently also licensed under the GNU GPL V2.
Device drivers, which are also generally considered to be part of the kernel, are claimed to be derivative works
thereof and, as such, come under the GNU GPL V2 license. This includes the device drivers written or modified
by Protium Technologies, Inc. for the Xilinx SPI peripheral and for a specialized character device peripheral.
Other device drivers are copyrighted by their respective authors, most notably by John Williams who is
responsible for modifying the device drivers for the Microblaze peripherals, by Xilinx, and by others.
Standard Linux application programs provided with the system are copyrighted and licensed individually and
separately from the kernel. Each application source directory should be consulted for the copyright and software
license terms that apply to that application package.
Copies of the GNU General Public License and the GNU Library General Public License are reproduced in
Appendix B for the reader’s convenience. These are provided for reference only. The definitive licenses are those
that accompany the source code.
Source code is available to legitimate owners of Model 4050 hardware in accordance with the GNU GPL, LGPL,
and other applicable licenses. Requests for source code may be sent to Protium Technologies, Inc., 10 Bearfoot
Road, Northborough, MA 01532.
8.2 Protium Technologies, Inc. Software License
The various applications embedded in to the equipment that specifically operate and manage the Model 4050,
including the command line user interface application, are original works and are Copyright 2005, 2006 by
Protium Technologies, Inc. and are licensed in binary form for use only with the Model 4050 RF Modem.
The Protium Technologies, Inc. Software License is located in Appendix B1.