From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Subject: Re: [RFC PATCH] gpiolib: Provide and export gpiod_export_name Date: Tue, 12 Aug 2014 17:29:05 -0700 Message-ID: <20140813002905.GA31412@roeck-us.net> References: <1406139132-5404-1-git-send-email-linux@roeck-us.net> <53D0A8B7.2010005@roeck-us.net> <53E32C09.5000704@roeck-us.net> <53E8DE1D.9070503@roeck-us.net> <53E8EBBD.6080500@roeck-us.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-pd0-f177.google.com ([209.85.192.177]:37844 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751415AbaHMA3J (ORCPT ); Tue, 12 Aug 2014 20:29:09 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Alexandre Courbot Cc: "linux-gpio@vger.kernel.org" , Linux Kernel Mailing List , "linux-doc@vger.kernel.org" , Linus Walleij , Randy Dunlap On Mon, Aug 11, 2014 at 03:05:54PM -0700, Alexandre Courbot wrote: > On Mon, Aug 11, 2014 at 9:13 AM, Guenter Roeck wrote: > > On 08/11/2014 08:20 AM, Alexandre Courbot wrote: > > [ ... ] > > > >> > >> Note that this doesn't change anything to the core of the argument ; > >> we have not heard what Linus thinks about named GPIOs in > >> /sys/class/gpio yet, maybe he will have a different opinion... > >> > > > > Well, please let me know if/when you are planning to take away > > that existing ABI so I can plan accordingly. FWIW, out-of-kernel > > users I am currently aware of are Juniper Networks and Zodiac > > Aerospace. The latter asked me to help them upstreaming their code. > > > > If you plan to remove the ABI, you might want to inform its current > > in-kernel users. You can look those up yourself. > > We are not taking existing user-space ABIs away. But we are also not > encouraging people to use bad ABIs by introducing new ways to use > them, hence my restraint towards this patch. > You bring it to the point. You believe that the gpio ABI, or maybe just named gpio pins, is a bad idea. Nothing I am going to say will influence that opinion; all we do is to keep turning in circles. So let's stop wasting our time, agree to disagree, and move on. Thanks, Guenter