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Date:      Sat, 01 Feb 2014 08:07:15 +0100
From:      Hans Petter Selasky <hps@bitfrost.no>
To:        "Danilo E. Gondolfo" <danilo@freebsd.org>,  freebsd-current@freebsd.org, =?UTF-8?B?Ium7hOaWh+i+iUBHbWFpbCI=?= <huanghwh@gmail.com>
Subject:   Re: Apple Trackpad driver
Message-ID:  <52EC9D23.3030301@bitfrost.no>
In-Reply-To: <52EC07CE.70608@freebsd.org>
References:  <CAB8uncaLEn4CaJv8%2BowESe_zUUK%2Bgem_bXpEjhsOJE69m_fWAg@mail.gmail.com> <CAJ-Vmon4Gk6bqoT%2BJf-bRxE0%2BNJ1NjR0wjum-HjoVFDN-2e=8Q@mail.gmail.com> <CAASDrV=pbDpZCGvEjnD8VS0D_HyC8=L3jQ7rfGszG6=PtxaE3Q@mail.gmail.com> <CAASDrVmqijq51OEH7USLutPSgme7YWhXZZX4tGROLHVPoz2VkA@mail.gmail.com> <52E8DDA3.3070301@bitfrost.no> <CAB8uncZVCbFWhJrEosRtRebRip4HjArsZx9FwKE0q9EjYDncmg@mail.gmail.com> <52E9F546.9090005@bitfrost.no> <CAB8unca0ViSrg9ExGX%2BsEfQta9AAXbkKoaGr8RLX1-ksay2tog@mail.gmail.com> <52EB4DBE.20501@bitfrost.no> <52EC07CE.70608@freebsd.org>

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On 01/31/14 21:30, Danilo E. Gondolfo wrote:
> I noticed that your driver is based on the Linux driver [1] and some
> pieces of code are copied, are you sure that we won't have any problems
> with license?

Hi,

Hence Huang has only copied so-called "header file contents", I think 
this should be fine. I've anyhow added a notice about that. I'll clear 
any issues directly with Greg Kroah-Hartman. The GPLv2 is clear that 
such contents is so-called "unrestricted". Se chapter 5.

Regarding the parts re-used from existing FreeBSD input drivers, this is 
the way we should write drivers, by trying to re-use existing well 
written and working device drivers. What Huang has done is perfectly 
fine with with me.

http://svnweb.freebsd.org/changeset/base/261343

--HPS



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