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Message-ID: <4A293628.3090105@gdatech.co.in>
Date: Fri, 05 Jun 2009 20:43:44 +0530
From: Benjamin Vasanthakumar J <j.benjamin@gdatech.co.in>
MIME-Version: 1.0
To: linux-bluetooth@vger.kernel.org
Subject: Re: Bluetooth Headset not working with Linux2.6.28 ubuntu Intrepid
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Dear All,

Can anyone tell whether snd-bt-sco driver and the btsco application are 
still supported in the Linux 2.6.28 and Bluez latest versions?

Which are the required ALSA driver for the Bluetooth audio to work?

Thanks & Regards,
Benjamin

Benjamin Vasanthakumar J wrote:
> Dear All,
>
> I have a Bluetooth headset that support HSP. I am trying to make it 
> work on the Ubuntu linux Intrepid version.
> I am facing issue of the BT headset stops working after few seconds 
> but after that btsco application hangs and even
> after killing the application I could see that lot of SCO packets 
> activity(confirmed using hcidump utility).
>
> *Bluez version available on the ubuntu is 4.12*
>
> _*Steps followed:*_
> i) installed all the required bluetooth packages available for the 
> Intrepid linux
> ii) install bluetooth alsa driver
> insmod snd-bt-sco.ko
>
> snd-bt-sco we are got from the Bluetooth alsa site as follows:
>
> http://bluetooth-alsa.sourceforge.net/build.html
>
> cvs -d:pserver:anonymous@sbc.cvs.sourceforge.net:/cvsroot/btsco login 
> cvs -d:pserver:anonymous@sbc.cvs.sourceforge.net:/cvsroot/btsco co btsco
>
> When tried to compile with the 2.6.28 kernel it returned driver.h is 
> depreceated, we removed the header file entry
> in the sourcecode and commented two or three lines which had 
> snd-assert api which is not available in the linux-2.6.28 alsa.
>
> *I would like to know where I can get the latest version of the 
> snd-bt-sco driver.*
>
> iii) connect to the audio headset using the
> btsco -v <BTADDR>
>
> iv) after performing the above we could see a soundcard entry in the
> /proc/asound/cards
>
> v) aplay -D btheadset -f s16_le /usr/share/sounds/login.wav
>
> After the v) step we could here a sound and after few seconds the 
> audio cuts off.
>
> Please advice how to troubleshoot and fix this issue.
>
> Thanks & Regards,
> Benjamin
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