From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-013.synserver.de ([212.40.185.13]:1054 "EHLO smtp-out-210.synserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753534AbbIGIIr (ORCPT ); Mon, 7 Sep 2015 04:08:47 -0400 Message-ID: <55ED460A.1080706@metafoo.de> Date: Mon, 07 Sep 2015 10:08:42 +0200 From: Lars-Peter Clausen MIME-Version: 1.0 To: Matt Ranostay , Jonathan Cameron CC: Peter Meerwald , "open list:IIO SUBSYSTEM AND..." , open list , "open list:OPEN FIRMWARE AND..." , George McCollister Subject: Re: [RFC v2 4/4] iio: chemical: add SGX VZ89x VOC sensor support References: <1441593547-10896-1-git-send-email-mranostay@gmail.com> <1441593547-10896-5-git-send-email-mranostay@gmail.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org On 09/07/2015 06:27 AM, Matt Ranostay wrote: > Thinking this over do we needed a IIO_CHAN_INFO_PROCESSED_OFFSET to > signal that it needs to be after the (value - offset) * scale > calculation? Well, value * scale + offset = (value + offset/scale) * scale. So just scale your offset inversely to the scale.