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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 621D3C98321 for ; Fri, 25 Sep 2026 10:57:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=fma3me7nmh8fY2O+zdwaLk5NjUZR5YbB01N07SAlcrw=; b=UEtaiT8iwzBzEq nx1Ot1fTHnLe58iUUUqROJZu5cZTgzzrLY4GdJ5VugOdAkaTzpCpaynKoC70VnuvGOSs6SLBUzFqK rgMvCzWYgnfti9H9x5t/oTcCqeSD03R4Fwj9+Ts2MekmJRz+YshGq+fnJEQo96aYaCpHCPZWGPGDK QXtf/CV9FYHeDZO1CIk7UdjEGyTNJy7wYZLGs7RyQepiaDjWsqEeavi3QdoQgiJpF6f4cKP9RKg2L jxxODWO0vIyU8ry/0qLxCx4hHOevHj6f9ib0gF75fyAfojinCGnXZjKdkaeYNmPqY+ilcYkLujT2+ XpeXAWXmCahTy96PBD4w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xA3cm-0000000D9B5-0Czt; Fri, 25 Sep 2026 10:57:52 +0000 Received: from zeus03.de ([194.117.254.33] helo=mail.zeus03.de) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xA3ch-0000000D9AA-2bHv for linux-i3c@lists.infradead.org; Fri, 25 Sep 2026 10:57:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=anZU 1KfXBrg0LBONVfZO0pF5ldmszDBWgaPcW+jObfg=; b=VzyewI3yGO86fam5WTld zvvz7ZZwnlYyWWaEVbLJY0SXay3FtSQG0IXNkSishLxmBPdBnZxcjwmIqHxGA3H5 qpXD/AqBCejFa2WMaKB6chS5k2bGIAAADbdKXrQdFp3IRQnghM5qlxb43sHfU767 QywHCw+cmThFPTcAWqyoxlAZO0Pj4VXCxJdo8hTan5crYNkNweu3zE9oIgbWC+TA kb6FO//YmBehA2iNiswLAWa/OKB+R5gfXrR8frTNOhqbBUy8iDTgxWTDqKOY+bpH E2XpS10vdMoyhpOO6GdfJOA4MYh0YowWFxMt+/NaN8CPPVv0DCLzgkE8N02/I6FM gw== Received: (qmail 1529304 invoked from network); 25 Sep 2026 12:57:42 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 25 Sep 2026 12:57:42 +0200 X-UD-Smtp-Session: l3s3148p1@r6HilUxcJoIujnvn Date: Fri, 25 Sep 2026 12:57:42 +0200 From: Wolfram Sang To: Andy Shevchenko Cc: Sam Agazaryan , linux-i3c@lists.infradead.org, Alexandre Belloni , Frank Li , Greg Kroah-Hartman , Arnd Bergmann , Adrian Hunter , Meagan Lloyd , Vitor Soares , Oleksandr Shulzhenko , Boris Brezillon , linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 0/5] i3c: add i3cdev module to expose i3c dev in /dev Message-ID: References: <20260921230603.2518652-1-samagazaryan@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260925_035748_568729_412515CA X-CRM114-Status: UNSURE ( 9.17 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org Hi Andy, > And you need to gather the opinion of Wolfram as well. Dunno if I can help here. When it comes to driver development, a dev interface is surely useful but can stay in some debug corner. However, cover letter says: >> Userspace access to I3C targets is needed for devices that do not have a >> kernel driver bound to them, such as targets in ROM/bootloader recovery >> mode (e.g., OCP Secure Firmware Recovery v1.1 and Caliptra Silicon Root of >> Trust recovery flows), as well as hardware bring-up and diagnostics. I don't know anything about these recovery mechanisms and their needs. I might have time to look into I3C things after all the conferences in Prague, but no promises... Happy hacking, Wolfram -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c