[linux-dvb] [Em28xx] MPL-licensed V4L kernel modules (em2880)

Marcel Siegert mws at linuxtv.org
Tue Jul 10 11:55:56 CEST 2007


On Tuesday 10 July 2007, Markus Rechberger wrote:
> On 7/10/07, Jakob Petsovits <jpetso at gmx.at> wrote:
> > On Saturday, 7. July 2007, Markus Rechberger wrote:
> > > only my new sources are MPL licensed there; the v4l-dvb maincode is of
> > > course GPL.
> > > Even though it doesn't matter anymore the people who lead me to that
> > > step know how the code will get merged into the kernel now. It's out
> > > of the scope of linuxtv.org due useless delaying all that work.
> >
> > Er, excuse my baffledness, but how do you plan to get code merged into the
> > kernel if it isn't GPL?
> >
> 
> there's nothing to worry about, the modified target code is GPL again.
>
> > Also, mind that the GPL being viral means that any code which bases on GPL
> > sources must be GPL (or GPL compatible) as well. Afaik, the MPL is not GPL
> > compatible, so if you put your new code exclusively under the MPL and at the
> > same time use the GPL-licensed v4l-dvb maincode as a base, you are violating
> > the GPL.
> >
> > I am not a lawyer, of course. Please consult someone with good insight, for
> > example, the Software Freedom Law Center at http://www.softwarefreedom.org/
> >
> > Regards,
> >   Jakob
> >
> > _______________________________________________
> > Em28xx mailing list
> > Em28xx at mcentral.de
> > http://mcentral.de/mailman/listinfo/em28xx
> >
> 
> 
at least for my understanding, markus, please explain to me that,
if you use v4l/dvb core functions that are licensed GPL, your code IS
also GPL automatically, isn't it?

and, as you told before, why is there a need to intermediate license to MPL?

regards
marcel








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