From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751491Ab3GMW0T (ORCPT ); Sat, 13 Jul 2013 18:26:19 -0400 Received: from mail-la0-f51.google.com ([209.85.215.51]:48243 "EHLO mail-la0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751274Ab3GMW0S (ORCPT ); Sat, 13 Jul 2013 18:26:18 -0400 Message-ID: <51E1D406.9090702@cogentembedded.com> Date: Sun, 14 Jul 2013 02:26:14 +0400 From: Sergei Shtylyov Organization: Cogent Embedded User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: Arnd Bergmann CC: Greg KH , linux-kernel@vger.kernel.org, linux-sh@vger.kernel.org Subject: Re: [PATCH] misc: add driver for Renesas R-Car Gyro-ADC/speed-pulse interfaces References: <201307130351.42967.sergei.shtylyov@cogentembedded.com> <20130713005702.GA14788@kroah.com> <51E0AA24.6070203@cogentembedded.com> <201307130958.16533.arnd@arndb.de> In-Reply-To: <201307130958.16533.arnd@arndb.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello. On 07/13/2013 11:58 AM, Arnd Bergmann wrote: >>> And are you sure you want to control this through sysfs? There's no >>> other better user/kernel apis for it? >> I found none, besides ioctl(), as the device driven is rather >> unique. But I thought that sysfs is "ioctl() today", so I went with it... > It does sound like it would fit better into IIO than just a misc driver, > even if it's the only hardware of its kind. I got somewhat familiarized myself with drivers/iio/ infrastructure and I have found a place only the for ADC device in which the customer currently has no interest. The other trouble is that I'll have to backport this driver to 3.4 which doesn't contain the IIO infrastructure at all. :-( > Arnd WBR, Sergei