From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relaygw4-3.mclink.it ([213.21.178.146]:36796 "EHLO relaygw4-3.mclink.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752744AbaBFVIc (ORCPT ); Thu, 6 Feb 2014 16:08:32 -0500 Received: from [195.110.128.82] (HELO smtpoutgw1.mclink.it) by relaygw4-3.mclink.it (CommuniGate Pro SMTP 6.0.6) with ESMTP id 11342912 for linux-iio@vger.kernel.org; Thu, 06 Feb 2014 21:53:29 +0100 Date: Thu, 6 Feb 2014 21:53:27 +0100 From: Alessandro Rubini To: lars@metafoo.de Cc: john3909@gmail.com, linux-iio@vger.kernel.org, broonie@kernel.org, flatmax@flatmax.org Subject: Re: DMA sampling and IIO Message-ID: <20140206205327.GA11958@mail.gnudd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <52F35C5B.7080409@metafoo.de> References: <52F35C5B.7080409@metafoo.de> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org > We do have patches for better integration of DMA (especially for high speed > devices) into the IIO framework[1]. This is not yet upstream since it is > still a bit WIP, but I'm confident that it will find it's way into upstream > soon. ZIO already supports dma. And mmaping the buffer from user space. It is in the design since inception, and in the code since Feb 2012 (git log says). /alessandro