Return-Path: Message-Id: <19396E3B-AC04-4896-9435-F4BB61DA1075@gmail.com> From: Johan Hedberg To: BlueZ development In-Reply-To: <488CDD7C.40708@sssup.it> Mime-Version: 1.0 (Apple Message framework v926) Date: Mon, 28 Jul 2008 14:15:52 +0300 References: <488CDD7C.40708@sssup.it> Subject: Re: [Bluez-devel] Why always disconnect the headset? 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 Ludovico, On Jul 27, 2008, at 23:41, Ludovico Cavedon wrote: > I noticed that every time an application closes a SCO audio device, my > headset gets disconnected (HEADSET_STATE_DISCONNECTED). This means > that > when the application reopens the device, it requires some seconds to > get > the audio working. > > So, why is the headset disconnected and not just left in the state > HEADSET_STATE_CONNECTED? (i.e. the same stat that the headset enters > when I turn it on and pairs with my pc). You didn't mention which version of BlueZ you use, but in recent versions the logic is such that only implicitly created connections are automatically disconnected (after a 3 second timeout) but explicitly created connections stay up until you manually disconnect them. An implicitly created connection would be one caused by an ALSA application when it opens the audio device. Connections that fall into the explicitly created category are those that happen when you turn the headset on and it connects to the PC or when you call the Headset.Connect() D-Bus method and the PC connects to the headset. Johan ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel