From: "Nicholas A. Preyss" <nalp@gmx.net>
To: bluez-devel@lists.sourceforge.net
Subject: Re: [Bluez-devel] questions about BT audio headset support...
Message-ID: <20040507141928.GA4058@gmx.net>
References: <409AD45D.6080102@dark-reality.de> <20040507113025.GA23044@gmx.net> <409B833B.8070203@superbug.demon.co.uk>
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Date: Fri, 7 May 2004 16:19:28 +0200

On  0, James Courtier-Dutton <James@superbug.demon.co.uk> wrote:
> Nicholas A. Preyss wrote:
> >In my opinion, the whole connection handling should be done in
> >user-space. In kernel-space only a generic "sco channel" - "alsa device" 
> >binding interface should stay. 
> 
> I think it might be worth trying to find out if one can get alsa-lib to 
> use a user-space device driver. Then everything will stay in user space 
> until it reaches the bluez code.

This means alot of rather useless kernelspace-userspace-kernelspace 
copying. Looking at Marcels hstest program, there is a quiet large lag,
i am not sure, how much you could reduce this with an optimized direct
alsa interface.

nicholas


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