linux-kernel - Re: [RFC] Simple userspace interface for PCI drivers

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Date:	Wed, 30 Aug 2006 12:09:26 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [RFC] Simple userspace interface for PCI drivers

On Tue, 2006-08-29 at 23:23 -0700, Greg KH wrote:
> So, here's the code.  I think it does a bit too much all at once, but it
> is an example of how this can be done.  This is working today in some
> industrial environments, successfully handling hardware controls of very
> large and scary machines.  So it is possible to use this interface to
> successfully build your own laser wielding robot, all from userspace,
> allowing you to keep your special-secret-how-to-control-the-laser
> algorithm closed source if you so desire.
> 
> In looking at the proposed kevent interface, I think a few things in
> this proposed interface can be dropped in favor of using kevents
> instead, but I haven't looked at the latest version of that code to make
> sure of this.

Yeah, that makes sense.

> And the name is a bit ackward, anyone have a better suggestion?
> 
> Thomas has also promised to come up with some userspace code that uses
> this interface to show how to use it, but seems to have forgotten.
> Consider this a reminder :)

Yup. I pinged the customer again to get the "non-secret" :) parts
published.

	tglx


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