Return-Path: Date: Fri, 1 Dec 2006 14:22:53 +0100 (CET) From: Peter Wippich To: BlueZ development In-Reply-To: <200611301212.39250.akohlsmith-bluez@mixdown.ca> Message-ID: References: <002901c710a8$0eab3580$0100a8c0@kayleigh> <000701c712dc$8e44ff20$3978f052@kayleigh> <200611301212.39250.akohlsmith-bluez@mixdown.ca> MIME-Version: 1.0 Subject: Re: [Bluez-devel] Master / Slave question Reply-To: BlueZ development List-Id: BlueZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: bluez-devel-bounces@lists.sourceforge.net Errors-To: bluez-devel-bounces@lists.sourceforge.net Hi Andrew, On Thu, 30 Nov 2006, Andrew Kohlsmith wrote: > On Tuesday 28 November 2006 06:34, Peter Wippich wrote: > > You should try to get a newer BT 2.0 device. If I remember right the newer > > CSR devices support two slaves at a time (at least they support one slave > > and one Master connection simultaniously). > > I'm confused; I thought the limitation was with early early BT 1.0B > implementations, but now you're saying that BT2.0 even has this limit? I > can't, for example, have one BT dongle and work with 2, 3, 4 or more devices > at the same time? I think the confusion was caused by the limitations introduced with the device roles: master and slave. So most modern devices support the following: Master with up to 7 slaves. Master to (6 ?) slaves and Slave to 1 Master. Slave to 2 Masters. > > For a server application like yours I would suggest to use the role > > switch feature in a more relaxed way. So, once a connection comes in try > > to do a role switch. If it succeed it is fine and you're able to accept an > > additional connection. If it fails you're out of resources but at least > > can service the current connection. > > Interesting. Always try to become a slave (i.e. let the phone be the master > if it'll let you), correct? No, the other way round. Always try to become a master to be able to service additional connections and let the phone be the slave. See above for the reason. Ciao, Peter | Peter Wippich Voice: +49 30 46776411 | | G&W Instruments GmbH fax: +49 30 46776419 | | Gustav-Meyer-Allee 25, Geb. 12 Email: pewi@gw-instruments.de | | D-13355 Berlin / Germany | ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel