From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailhost.informatik.uni-hamburg.de ([134.100.9.70]:54473 "EHLO mailhost.informatik.uni-hamburg.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753183Ab1KZSJi (ORCPT ); Sat, 26 Nov 2011 13:09:38 -0500 Message-ID: <4ED12B50.9090206@metafoo.de> Date: Sat, 26 Nov 2011 19:09:20 +0100 From: Lars-Peter Clausen MIME-Version: 1.0 To: Alessandro Rubini CC: linux-iio@vger.kernel.org, greg@kroah.com, linux-kernel@vger.kernel.org, federico.vaga@gmail.com, dcobas@cern.ch, siglesia@cern.ch, manohar.vanga@cern.ch Subject: Re: [RFC PATCH 0/7] Introducing ZIO, a new I/O framework References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org On 11/26/2011 06:30 PM, Alessandro Rubini wrote: > This RFC patch-set introduces the ZIO framework for input/output, > which will be used in the new series of drivers by the BE-CO-HT > group at CERN. > > The use-case it is meant to cover is very fast I/O with > hardware-provided timestamps. The first production driver we will > support is a 100Ms/s 4-channel 14-bit ADC (developed on ohwr: see > http://www.ohwr.org/projects/fmc-adc-100m14b4cha ). We need similar > bandwidth on output. > > The synchronization engine of that FMC card and other ones is going to > be White Rabbit (http://www.ohwr.org/projects/white-rabbit). > > Currently, the patch-set includes one example driver (zio-zero) > that behaves like /dev/zero and /dev/urandom. Other drivers will > come soon, both demo and real hardware. > > Slides for a tutorial on the design ideas are online here: > http://www.ohwr.org/attachments/881/zio-111123.pdf > > A list of pending issues and development plans is online at: > http://www.ohwr.org/projects/zio/wiki/Todo You've Cc'ed the IIO mailinglist, so you know about the IIO framework. Could you explain why you need a new framework and your devices can't be supported by the IIO framework? After a first quick glance ZIO looks to me like a subset of IIO. - Lars