linux-kernel - Re: [RFC PATCH 0/7] Introducing ZIO, a new I/O framework

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Message-ID: <CAKnu2MoHks06GzBG25tBG7JgEwMoeH6cOY95FbcHUq_sCm5LLg@mail.gmail.com>
Date:	Thu, 1 Dec 2011 22:41:49 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Alessandro Rubini <rubini@...dd.com>
Cc:	lars@...afoo.de, linux-iio@...r.kernel.org, greg@...ah.com,
	linux-kernel@...r.kernel.org, federico.vaga@...il.com,
	dcobas@...n.ch, siglesia@...n.ch, manohar.vanga@...n.ch
Subject: Re: [RFC PATCH 0/7] Introducing ZIO, a new I/O framework

2011/11/26 Alessandro Rubini <rubini@...dd.com>:

> I'm open to suggestions (_we_ are) about how to easily use IIO for
> output, for hardware timestamps (we have 3 32-bit fields) and for very
> large data blocks, with DMA to/from user space -- sure we don't have this
> last point in ZIO at this point in time.

The latter seem like a case for the dma-buf mechanism.
http://lwn.net/Articles/462524/

(Interesting hardware you found Alessandro! :)

Yours,
Linus Walleij
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