Return-Path: From: Victor Shcherbatyuk To: bluez-devel@lists.sourceforge.net In-Reply-To: <20050717225345.GI3753@stusta.de> Message-ID: References: <20050717145709.GI3613@stusta.de> <1121615883.22662.38.camel@pegasus> <20050717225345.GI3753@stusta.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: [Bluez-devel] usb/sco problems Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net Reply-To: bluez-devel@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ development List-Post: List-Help: List-Subscribe: , List-Archive: Date: Mon, 18 Jul 2005 09:55:54 +0100 (MET) Hello Marcel, I have a small app which routes back sco data received from a headset, so basically you supposed to hear yourself back in the headset. It works fine with the voice setting 0x0060, but when I switch to u-law 0x014c sound is starting to break out, if I run the program on arm using uart it works fine for both of the settings. Using hcidump shows a regular pattern of sco receives/sends (normally like 3 packets in, 3 packets out, which is probably the result of usb buffering for incoming packets), but if I look at the output of an air-sniffer, I see that the data sent back to the headset has very irregular time pattern (a lot of transmissions are missing), while the time pattern of incoming data from the headset is ok. So it looks like something goes wrong after the sco data is supplied to the hci_usb. I have this problems with 2 dongles I have (BC4 and Broadcom built-in in my laptop), so does not look as a dongle problem. Any idea what might be wrong? Well, I also have a app which does copying data received from a phone sco to a headset sco and back (2 sco channels open and app functions as a middle agent). This app is also working for arm via UART, but not on my laptop (and home pc) via usb. The question does any1 has a successful example of having 2 sco channel open (to different devices) at the same time? Regards, Victor. -- ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel