https://openethercatsociety.github.io/doc/soem/index.html ... Features as of 1.2.0 : Changed license to GPLv2 only. Adresses leagal concerns about master licensing. ...
So I guess it is OK. On Wed, 17 Jan 2018 09:27:25 -0500 Dave Cole <linuxcncro...@gmail.com> wrote: > The text below is at the end of the SOEM page from the link below. > https://openethercatsociety.github.io/doc/soem/index.html > > So how does this work?? The SOEM software itself is GPL, but if you > implement an Ethercat master, you need to get a license ?? > > That's an interesting approach. > > If the SOEM code is all GPL, then how could adding GPL code to GPL code > result in something other than GPL code ? > > From a practical standpoint, I think we need to figure out how to get > networked drives connected to LinuxCNC if we want LinuxCNC to live on. > At some point analog servo drive interfaces will become like 5 1/4" > floppy drives... They were once common. > > Dave > > >>>>>>>>>>>>>>>>> > > SOEM is free software; you can redistribute it and/or modify it under > the terms of the GNU General Public License version 2 as published by > the Free Software Foundation. > > SOEM 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. > > 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 EtherCAT Technology, the trade name and logo "EtherCAT" are the > intellectual property of, and protected by Beckhoff Automation GmbH. You > can use SOEM for the sole purpose of creating, using and/or selling or > otherwise distributing an EtherCAT network master provided that an > EtherCAT Master License is obtained from Beckhoff Automation GmbH. > > In case you did not receive a copy of the EtherCAT Master License along > with SOEM write to Beckhoff Automation GmbH, Eiserstrasse 5, D-33415 > Verl, Germany (www.beckhoff.com). > > > <<<<<<<<<<<<<<<< > > On 1/16/2018 8:51 PM, Jeff Epler wrote: > > Our policy is that any code added to LinuxCNC has to be compatible with > > the license terms "GPL version 2 or any later version". > > https://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses > > > > Anything that imposes a restriction on how the software can be used (for > > example, if it is claimed that using the software requires an additional > > license, as Beckhoff Automation GmbH reportedly does) cannot be > > incorporated. > > > > For a rather old thread on exactly the same topic, see this one from > > 2013: > > https://sourceforge.net/p/emc/mailman/emc-developers/thread/20131022150751.GB2631%40unpythonic.net/ > > > > Jeff > > > > ------------------------------------------------------------------------------ > > Check out the vibrant tech community on one of the world's most > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
