Re: Mapping a piece of one process' addrspace to another?

From: James H. Cloos Jr. (cloos@jhcloos.com)
Date: Wed Mar 07 2001 - 18:22:31 EST

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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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