Stuart Hughes <[EMAIL PROTECTED]>@fsmlabs.com on 06/27/2000 05:03:48
AM
Sent by: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
cc: Mike Cravens <[EMAIL PROTECTED]>, [EMAIL PROTECTED], Don
Mcneill <[EMAIL PROTECTED]>, Bernhard Kuhn
<[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: [rtl] Soft Real Time
[EMAIL PROTECTED] wrote:
>
> On Mon, Jun 26, 2000 at 01:18:21PM -0500, Mike Cravens wrote:
> > Could you encourage more participation in the porting process by
others
> > interested in keeping the source open?
> >
> > If you close the source, I might as well use VxWorks.
>
> I am not closing the source. Please note that there are new GPL releases
> of RTLinux on our web site nearly every week. We have a long
> track record of delivering GPL code. Longer than anyone else in this
> area, by some years.
>
> > Many people are just arriving at the real-time and embedded party.
> >
> > Getting people to contribute commits them in ways beyond money and
economics.
> >
> > There are some things that die if you hold them too tightly.
>
> Contributed source and ports are great. Please send 'em.
> What we've found is that most RTLinux users want to work on their
> own apps. RT kernel code is really specialized.
> If you look at the credits file sent with RTLinux, you will
> see that there are some exceptions -- and I, for one, really appreciate
them.
> Tomasz, Jerry, and others have been critical. What I have rejected,
> and will continue to reject are changes that I think are technically
> wrong, poorly done, or violate the base paradigm. An advantage of
> open source is that others who disagree are free to pursue their own
> path. And if their ideas turn out to be good, we may even change our
> minds. A good example of how this works is the Linux fbcon component
> that came after a conceptually similar but weak alternate method
> was rejected.
Hi Victor,
If RTLinux is truly GPL, can you state clearly that the patent described
in the RTLinux distribution will only be used defensively, and not as a
means to:
a) place restrictions on derivative works
b) to force royalty payments from either RTLinux or derivatives.
Regards, Stuart
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For more information on Real-Time Linux see:
http://www.rtlinux.org/rtlinux/
xxxxxxx 142 % cat COPYRIGHT
RTLinux (RT-Linux)
is Copyright VJY Associates LLC 1999 except where copyright is
declared in individual code files. The unmodified Linux and contributed
code remains the copyright of the authors.
RTLinux is a trademark of VJY Associates LLC.
RTLinux is protected under US Patent 5,995,745.
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, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-- /accts/xxxxxx/linux/rtlinux/FMS_Version2.2/rtlinux-2.2 --
xxxxxxx 143 % cat PATENT
US Patent 5,995,745 covers the basic mechanism underlying RTLinux.
There is a royalty free license of this patent for use with the combined
open source GPL licensed versions of the Linux operating system released
by Linus Torvalds and the RTLinux RealTime Linux operating system released by
VJY Associates LLC.
PATENT FAQ:
RTLinux will continue to be released in open source. No royalties
are needed to use RTLinux or to run programs on RTLinux.
I believe the included files already answer those questions. Further, what
is with the persistent animosity towards Victor and his work? The technical
arguments presented on this list are excellent but the general slinging of
mud Victor's way is getting old.
JH
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For more information on Real-Time Linux see:
http://www.rtlinux.org/rtlinux/
