From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38DC6C43441 for ; Thu, 15 Nov 2018 12:15:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ECE42223CB for ; Thu, 15 Nov 2018 12:15:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="hxoiO6jq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ECE42223CB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=synopsys.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388072AbeKOWWh (ORCPT ); Thu, 15 Nov 2018 17:22:37 -0500 Received: from smtprelay2.synopsys.com ([198.182.60.111]:34294 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729115AbeKOWWh (ORCPT ); Thu, 15 Nov 2018 17:22:37 -0500 Received: from mailhost.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id F12FF10C0EC0; Thu, 15 Nov 2018 04:14:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1542284100; bh=+f6CaX9sdBvxhaZjl87yutS7vpcH14fol/SpDoSU0iI=; h=Subject:To:CC:References:From:Date:In-Reply-To:From; b=hxoiO6jqvAbaxsZf2+wg06DQN3x1pIz6lQumkZzmHArEINLRR0H5qGlIYpuEesJHB 3eeXmX29JNrnLHLX2xd7/AeusNlAkZob+6i6MCy/VtueKrL4YqCifImT/SColv5fce JT27R/aR62mTkUERiTxCBM9kpskR9hLMgpXoZ4OGBm3DekAYZifP7NEB1WravqCOem lRtrq0kNFekbWwKd5IMSMwbl0LrNySQwLy/FGTMmmXY/we567/0z4H6+euOLtsT8w8 mL5J7L9h5ud6jbH9UWwgEWJA1VLOxRxQrtDHCpPfGAc8zs01HCp6K34+VYFiva+1TM L69SXqdulxiqA== Received: from US01WEHTC2.internal.synopsys.com (us01wehtc2-vip.internal.synopsys.com [10.12.239.238]) by mailhost.synopsys.com (Postfix) with ESMTP id 5EEE756DF; Thu, 15 Nov 2018 04:14:57 -0800 (PST) Received: from DE02WEHTCA.internal.synopsys.com (10.225.19.92) by US01WEHTC2.internal.synopsys.com (10.12.239.237) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 15 Nov 2018 04:14:57 -0800 Received: from DE02WEHTCB.internal.synopsys.com (10.225.19.94) by DE02WEHTCA.internal.synopsys.com (10.225.19.92) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 15 Nov 2018 13:14:55 +0100 Received: from [10.0.2.15] (10.107.19.116) by DE02WEHTCB.internal.synopsys.com (10.225.19.80) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 15 Nov 2018 13:14:55 +0100 Subject: Re: [PATCH v10 0/9] Add the I3C subsystem To: Boris Brezillon , Wolfram Sang , , Jonathan Corbet , , Greg Kroah-Hartman , Arnd Bergmann CC: Przemyslaw Sroka , Arkadiusz Golec , Alan Douglas , Bartosz Folta , Damian Kos , Alicja Jurasik-Urbaniak , Cyprian Wronka , Suresh Punnoose , Rafal Ciepiela , Thomas Petazzoni , Nishanth Menon , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , "Kumar Gala" , , , Vitor Soares , Geert Uytterhoeven , Linus Walleij , Xiang Lin , , Sekhar Nori , Przemyslaw Gaj , Peter Rosin , Mike Shettel , Stephen Boyd References: <20181026144333.12276-1-boris.brezillon@bootlin.com> From: vitor Message-ID: <76b1d15d-232c-d8ba-5eba-8394e71be725@synopsys.com> Date: Thu, 15 Nov 2018 12:14:37 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181026144333.12276-1-boris.brezillon@bootlin.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.107.19.116] Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Boris, Given the current state of the subsystem I think it might worth start to think how to expose the devices under /dev. My initial thoughts are to do the same think as for i2c, expose the buses or the i3c_devices and use ioctl for private transfers. Some direct CCC commands can be sent through the /sys as you plan for SETNEWDA . What do you think about this? Best regards, Vitor Soares