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To: linux-kernel@vger.kernel.org
Subject: Re: Mapping a piece of one process' addrspace to another?
In-Reply-To: <Pine.GSO.4.21.0103070402160.2127-100000@weyl.math.psu.edu>
From: "James H. Cloos Jr." <cloos@jhcloos.com>
In-Reply-To: <Pine.GSO.4.21.0103070402160.2127-100000@weyl.math.psu.edu> (Alexander Viro's message of "Wed, 7 Mar 2001 04:09:31 -0500 (EST)")
Date: 07 Mar 2001 17:22:31 -0600
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>>>>> "AV" == Alexander Viro <viro@math.psu.edu> writes:

AV> Double ugh. Why bother with ioctl() when you can just have a
AV> second channel and do read()/write() on it?

Because you cannot rewrite -- or even re-compile -- every app this
should support.  OSS emulation by ALSA is a great example, given
how many binary-only apps already exist which need OSS emulation
on an ALSA box.

I'm sure sound is not the only real application for this.

-JimC
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James H. Cloos, Jr.  <http://jhcloos.com/public_key>     1024D/ED7DAEA6 
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