linux-kernel - Re: The Linux Staging tree, what it is and is not.

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Message-ID: <alpine.DEB.1.10.0903201332130.16753@asgard.lang.hm>
Date:	Fri, 20 Mar 2009 13:32:44 -0700 (PDT)
From:	david@...g.hm
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
cc:	Daniel Krüger 
	<daniel.krueger@...tec-electronic.com>,
	Robert Schwebel <r.schwebel@...gutronix.de>,
	Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org,
	Michael Olbrich <mol@...gutronix.de>,
	Wolfram Sang <wsa@...gutronix.de>,
	Marc Kleine-Budde <mkl@...gutronix.de>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: The Linux Staging tree, what it is and is not.

On Fri, 20 Mar 2009, Alan Cox wrote:

>> information of what to copy to where comes from the object dictionary.
>> But it is possible to extract this information from the objdict and pass
>> it via generic structures (e.g. something like IO vectors) to the PDO
>> module in kernel. The information flow of the configuration data is
>> one-way only, from userspace to kernel. This is what I plan to implement
>> in openPOWERLINK, because the copy information can also be passed to a
>> special hardware like a DMA controller.
>
> Ok so your hardware in fact really is oriented around an mmap type
> interface ?

what I understand from this thread is that the hardware is a standard 
ethernet card.

David Lang
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