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From: "Nicholas A. Preyss" <nalp@gmx.net>
To: bluez-devel@lists.sourceforge.net
Subject: Re: [Bluez-devel] questions about BT audio headset support...
Date: Fri, 7 May 2004 16:19:28 +0200	[thread overview]
Message-ID: <20040507141928.GA4058@gmx.net> (raw)
In-Reply-To: <409B833B.8070203@superbug.demon.co.uk>

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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  reply	other threads:[~2004-05-07 14:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-07  0:12 [Bluez-devel] questions about BT audio headset support Lars Grunewaldt
2004-05-07 11:30 ` Nicholas A. Preyss
2004-05-07 12:38   ` James Courtier-Dutton
2004-05-07 14:19     ` Nicholas A. Preyss [this message]
2004-05-07 15:10     ` Lars Grunewaldt

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