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Re: non-free firmware in kernel modules, aggregation and unclear copyright notice.

Humberto Massa writes:

> David Schwartz wrote:
>> > On Sat, Apr 09, 2005 at 08:07:03PM -0700, David Schwartz wrote:
>> >> The way you stop someone from distributing part of your work is
>> >> by arguing that the work they are distributing is a derivative
>> >> work of your work and they had no right to *make* it in the first
>> >>  place. See, for example, Mulcahy v. Cheetah Learning.
>> > Er, that's one way, but not *the* way.  I could grant you
>> > permission to create derivatives of my work, but not to
>> > redistribute them.  To stop you from distributing them, I'd argue
>> > that you had no right to distribute them--you *did* have the right
>> > to make it in the first place.
>>  You could do that be means of a contract, but I don't think you could
>>  it do by means of a copyright license. The problem is that there is
>>  no right to control the distribution of derivative works for you to
>>  withhold from me.
> Wrong, sorry. Copyright is a *monopoly* on some activities (copy,
> distribution of copies, making *and* distribution of derivative works).

Copyright law only _explicitly_ grants a monopoly on preparation of
derivative works.  However, it is trivial, and overwhelmingly common,
for a copyright owner to grant a license to create a derivative work
that is conditional on how the licensee agrees to distribute (or not
distribute) the derivative work.

Michael Poole

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