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Date:      Sat, 2 Nov 2019 18:02:24 +0100
From:      Gary Jennejohn <gljennjohn@gmail.com>
To:        Ian Lepore <ian@freebsd.org>
Cc:        Dirk-Willem van Gulik <dirkx@webweaving.org>, Warner Losh <imp@bsdimp.com>, freebsd-hackers <freebsd-hackers@freebsd.org>, Gleb Popov <arrowd@freebsd.org>
Subject:   Re: A bounty of 450 (was $100) for rtsx SD card reader driver.
Message-ID:  <20191102180224.30b5693a@ernst.home>
In-Reply-To: <cec4f77affabe707b902cc943a0d308541736587.camel@freebsd.org>
References:  <CALH631k4gefPshr1nJM213FwfP0QgQhZ=s1U32ejMLSW42e3qw@mail.gmail.com> <CALH631=8tSCfHcT3Fhu7gC9LSx-pA1M57Ae=NPuaRRhAp1zZdA@mail.gmail.com> <9C97A802-A542-44B3-A295-79CCF70BF8D2@webweaving.org> <20191102082641.52f64cc8@ernst.home> <CALH631==Fgwvhq-B_vWXByNd4TUaW8Fh6Y=t=Lb9ML5%2BLGTt2Q@mail.gmail.com> <20191102115705.323376cd@ernst.home> <CANCZdfoh01ZiD15ySW9c4xfF470-arLe=UPA%2BvAfHTpcPUKvgw@mail.gmail.com> <082B79A4-EB74-42D7-94F1-67619C1FF31D@webweaving.org> <cec4f77affabe707b902cc943a0d308541736587.camel@freebsd.org>

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On Sat, 02 Nov 2019 10:50:43 -0600
Ian Lepore <ian@freebsd.org> wrote:

> On Sat, 2019-11-02 at 17:26 +0100, Dirk-Willem van Gulik wrote:
> > On 2 Nov 2019, at 16:27, Warner Losh <imp@bsdimp.com> wrote:
> >   
> > > Years ago I was told they were cards, but I couldn't find any.  
> > 
> > ...  
> > > I'd say we also need docs to make a proper go of it because that
> > > too is usually needed...
> > 
> > An alternative source of information is the linux port:
> > 
> > 	https://github.com/gexplorer/RTS5209-linux-driver
> > 	https://github.com/chrisnew/rts_pstor
> >   
> 
> And just how do you draw the line between "I looked at the linux code
> as a source of information" and "I copied the linux code in violation
> of its GPL license" ?
> 

The driver was also ported to NetBSD, so that gives us two BSD-based
drivers as reference.

Plus, the author of the OpenBSD driver may have some documentation
available.

-- 
Gary Jennejohn



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