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Re: [avr-libc-dev] CRC-8-CCITT

From: Frédéric Nadeau
Subject: Re: [avr-libc-dev] CRC-8-CCITT
Date: Sat, 12 Feb 2011 13:15:44 -0500

Long story short, the code says:

"Alternatively, this software may be distributed under the terms of
BSD  license. See README and COPYING for more details."

The Readme reads as follow:
"This program is dual-licensed under both the GPL version 2 and BSD
license. Either license may be used at your option."

I'm no license expert and my understanding is that GPL and BSD are
defacto incompatible... So I don't know if one can actually release
under both license.

>From this, I'll start working on a patch. I doubt it will be ready for
1.7.1, this will highly depend on the author responce.

Thanks for you quick feedback.
Sorry  Jörg for the double sending... my bad

Frédéric Nadeau ing. jr

On Sat, Feb 12, 2011 at 12:55 PM, Joerg Wunsch <address@hidden> wrote:
> As Frédéric Nadeau wrote:
>> I found this BSD project that has the code
>> implemented and it worked for me.
>> http://www.google.com/codesearch/p?hl=fr#M2_HPf5NDc8/trunk/2009/robostix/robostix/Shared/Crc8.c
> Unfortunately, despite of google claiming so in the header, it's not
> BSD-licensed but GPLed.  However, the author's name and email address
> are given in the code (and we've heard of him before in AVR-land), so
> you could ask him whether he'd like to contribute it to avr-libc under
> a BSD-style license.
> Yes, we'd definitely welcome it in the form of a patch, ready for
> integration, including doxygen-style comments for the documentation.
>> The util/crc16.h (well I'm not quite sure why it
>> is called crc16, but that is another story)
> Because it once started out as a header file containing three
> different CRC-16 calculations.  The iButton CRC-8 had been added
> later on.
> --
> cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL
> http://www.sax.de/~joerg/                        NIC: JW11-RIPE
> Never trust an operating system you don't have sources for. ;-)
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