linux-kernel - Re: Is it time for remove (crap) ALSA from kernel tree ?

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Date:	Wed, 27 Jun 2007 23:41:54 -0400
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"Andreas Hartmetz" <ahartmetz@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Is it time for remove (crap) ALSA from kernel tree ?

On 6/26/07, Andreas Hartmetz <ahartmetz@...il.com> wrote:
> Why not put the whole sound system in userland? It has been done before. Sound
> is just not performance critical at all and it's almost never mission
> critical.

There are dozens of companies selling Linux powered professional audio
gear, multiple pro audio centric distros, and hundreds of serious free
software audio apps.  I suspect these developers and their users would
disagree.

I agree with you about userland drivers but at minimum this would
require merging the -rt kernel patches, otherwise the latency/jitter
will be too high to do anything but toy desktop sounds, then you need
a mergeable mechanism for doing DMA and interrupt handling in
userspace.  It has been attempted before but never evolved to the
point where you could drive a complex device like the emu10k1.

Lee
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