From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ppsw-41.csi.cam.ac.uk ([131.111.8.141]:38373 "EHLO ppsw-41.csi.cam.ac.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753223Ab1JEIaX (ORCPT ); Wed, 5 Oct 2011 04:30:23 -0400 Message-ID: <4E8C1798.2070003@cam.ac.uk> Date: Wed, 05 Oct 2011 09:38:48 +0100 From: Jonathan Cameron MIME-Version: 1.0 To: "Hennerich, Michael" CC: "linux-iio@vger.kernel.org" , "Device-drivers-devel@blackfin.uclinux.org" , "manuel.stahl@iis.fraunhofer.de" Subject: Re: [RFC PATCH 0/2] IIO: Filtering - how to handle. References: <1317377879-9264-1-git-send-email-jic23@cam.ac.uk> <544AC56F16B56944AEC3BD4E3D59177146E73435B5@LIMKCMBX1.ad.analog.com> In-Reply-To: <544AC56F16B56944AEC3BD4E3D59177146E73435B5@LIMKCMBX1.ad.analog.com> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org On 10/05/11 07:55, Hennerich, Michael wrote: > Jonathan Cameron wrote on 2011-09-30: >> Hi All, >> >> One big area we have pretty much glossed over so far is devices with >> controllable hardware filters. This RFC proposes one option for >> how to handle this. For low pass filters at least, the 3db point >> seems the obvious choice as it allows us to gloss over exactly >> what type of filter it is whilst still capturing it's basic >> property of what it lets through. >> >> What do people think? > > Looks good. The 3dB cutoff or corner frequency is typically used to describe > various types of filters: low, high or band (pass/stop). > > Documentation? Indeed. Naughty me ;) Will add for new version. > > >> >> Jonathan >> >> Jonathan Cameron (2): >> staging:iio: filter description - low pass 3db frequency. >> staging:iio:imu:adis16400 add control of data filtering. >> drivers/staging/iio/iio.h | 2 + >> drivers/staging/iio/imu/adis16400.h | 2 + >> drivers/staging/iio/imu/adis16400_core.c | 177 >> +++++++++++++++++++++++------ drivers/staging/iio/industrialio-core.c >> | 2 + 4 files changed, 146 insertions(+), 37 deletions(-) > > Greetings, > Michael > > -- > Analog Devices GmbH Wilhelm-Wagenfeld-Str. 6 80807 Muenchen > Sitz der Gesellschaft: Muenchen; Registergericht: Muenchen HRB 40368; > Geschaeftsfuehrer:Dr.Carsten Suckrow, Thomas Wessel, William A. Martin, Margaret Seif > > > >