linux-kernel - Re: [PATCH 001/001] CHAR DRIVERS: a simple device to give daemons a /sys-like interface

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Date:	Fri, 9 Aug 2013 14:52:31 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Bob Smith <bsmith@...uxtoys.org>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 001/001] CHAR DRIVERS: a simple device to give daemons a
 /sys-like interface

On Thu, Aug 08, 2013 at 02:23:06PM -0700, Bob Smith wrote:
> Greg Kroah-Hartman wrote:>
> > You are mixing protocols and bindings and system calls up it seems.
> > They are not the same at all.
> 
> > How can you control a robot with this code?
> > What do you want to do in order to control your robot?  What are your
> > needs in accessing the hardware?  What hardware are you wanting to
> > control?  And why can't you just access that hardware through the normal
> > kernel apis we have today?
> 
> 
> Greg
>     I'll reply again to this message but for now let me try
> another explanation that does not mention sysfs, procfs, or
> device drivers.   This is probably how I should have started.

I fail to understand how you will use this code to write a "userspace
device driver" at all.

still confused,

greg k-h
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