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RE: BlueZ with ecos?


> From: Peter Vandenabeele [mailto:peter.vandenabeele@mind.be] 
> Sent: den 9 december 2002 22:44
> To: harri.siirtola@vtt.fi
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] BlueZ with ecos?
> 
> 
> On Mon, Dec 09, 2002 at 02:13:30PM +0200, harri.siirtola@vtt.fi wrote:
> > 
> > Has anyone tried to port this Bluetooth stack to run on 
> ecos? I don't 
> > know
> > much about BlueZ yet, it's based on Linux AFAIK so it could 
> require quite 
> > an amount of porting.
> 
> Harri,
> 
> From http://bluez.sourceforge.net/download/debian/woody/Packages
> 
> >> Description: Library to use the BlueZ Linux Bluetooth 
> stack BlueZ is 
> >> the official Linux Bluetooth protocol stack. It is an Open Source 
> >> project distributed under GNU General Public License (GPL).
> 
> This means you are not allowed to import this into eCos and 
> then distribute the combined program (the whole work) under 
> the eCos 2.0 
> license. You would be allowed to relicense the whole work 
> under GPL (since eCos 2.0 is GPL compatible), but then you 
> would have to also redistribute eCos and your entire "eCos 
> application" (which is linked to eCos as a library) under the 
> GPL license, which is 
> maybe not what you want to do. 
> 
> This is a deliberate effect of the viral license of GPL that 
> want to enforce other users of GPL licensed software to also 
> "in return" license their code under a Free SW license with 
> strong Copyleft. 
> 
> If you cannot accept that limitation, than you may need to 
> look for another Bluetooth stack that is either available from 
> a Closed source vendor or under BSD (or eCos 2.0 license if 
> that would be the case) or have someone write it from scratch.

One alternative is the Axis Open BT stack (http://developer.axis.com/software/bluetooth/). It is licensed under GPL with an exception that allows linking with proprietary aplications, i.e. quite similar to the new eCos license.

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