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From
SubjectRe: User Space Emulation of Devices
Date
Followup to:  <20010912214444Z271795-760+12170@vger.kernel.org>
By author: Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>
In newsgroup: linux.dev.kernel
>
> How do you pass an ioctl ? If any parameter is a pointer you actually need a
> complex protocol for passing memory content to make it useful.
>

You need a parameter marshalling system; however, they do exist. It
might actually be that the best way to deal with this is to make a
general module framework and compile a specific module to marshall the
parameters of the device you want to emulate.

-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com>
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