Return-Path: Message-ID: <453D0CFD.1030909@free.fr> Date: Mon, 23 Oct 2006 20:42:05 +0200 From: Fabien Chevalier MIME-Version: 1.0 To: BlueZ development References: <452E84DA.9090307@free.fr> <452E99E8.6070406@vasmac.com> <452FBC82.1080901@free.fr> <452FDC44.90803@vasmac.com> <45310A24.1000604@free.fr> <453114A0.50503@vasmac.com> <453B9F4D.7080504@free.fr> <453BAAFC.1090206@vasmac.com> In-Reply-To: <453BAAFC.1090206@vasmac.com> Subject: Re: [Bluez-devel] [PATCH] Updated sco flow control feature 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 Hello Jose, The documents i used as reference are the ones from bluetooth SIG. I don't know who copied the others, but they are closely similar to the one from IEEE :-) Concerning SCO flow control over UART link, it is stated nowhere it is mandatory nor optionnal. :-( However, having a look at the Bluetooth 2.0+EDR spec (available on www.bluetooth.com), section 6.26 "Supported commands" describes the bitmask that lists the supported hci commands for a given implementation, stating that *It is implied that if a command is listed as supported, the feature underlying that command is also supported.* And guess what ?.... in the bitmask there is a bit for the "Write Synchronous flow control enable" command. ;-) *** cut here *** 0 Read Hold Mode Activity 1 Write Hold Mode Activity 2 Read Transmit Power Level 3 Read Synchronous Flow Control Enable 10 4 Write Synchronous Flow Control Enable 5 Set Host Controller To Host Flow Control 6 Host Buffer Size 7 Host Number Of Completed Packets *** cut here *** Having analysed all these informations, my guess is that it is synchronous flow control is 'optionnal', even for uart links. Cheers, Fabien ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel