From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=217.70.183.196 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794418357; b=loVkyVf8hqcA4GKYAgow6ZyN1SUPi0+rMYlX4gNZJAxQT2W4E3hIBiciQgh/Gl2KWx1f DCzvMwYYX2F8wI1sTNzkleYJ9/tV3VwCTpqsTMSwHesBfzkRY8O1IvJaFeqBC1FyAmeBl PMWDooq+mPQDtTorTMf0thLwhWpEXCLnYRfzJqZocCyrYdB9igfpP4XhTbUW2A6+ljjLb ZmHNONuQK9GmowUUfWu6GWC0g1+zzZVIlk+apaMu4CO52JYXmU1YVSuVFlxoz7cdsdaE9 I1EQzeUz/YyNa+HjXeOg/RyfyOA4qAXs6dNq2+24OADP69d4KUcTGU72QXY64nxR08A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794418357; h=DMARC-Filter:Received:DKIM-Signature:From:To:Cc:Subject:In-Reply-To: References:User-Agent:Date:Message-ID:MIME-Version:Content-Type: Content-Transfer-Encoding:X-GND-Sasl:X-GND-Score:X-GND-Cause: X-GND-State; bh=hULeypsyS1lq5Fg4QI7ReOHkMb24ac0KfX8f7idPbA4=; b=pFlY5XY0L1sgDRtCNsiM6iPdKdE3BzqnTZrdu4CBgWHp/XNQUWxhMPwbZLepLG6mJp/z JJENxrCBZ5RFvwzUrX/Fe62LNiGZRR8oy8X1d40GAdnoLWl4xD5XT+wBmScsLZPFSZkDt MaI3u0NbbJD+SB6Kq7vk7vq1qjGzMqfRBIRMizvhvBPvT8fBEgo/gFdmbOpsrCZ/nQJnf Lygs4XdQ241ObUItNuLSjDM1JlaFvhuOFru5HRFLZvJXyYleICm0K224Msz4nFd5biigY uGTKxJBXNXq52lmMbTTfC8K7ds43wopMH8bSYeXxnVtCgySD5vds7GlfRTO1nzLUg+g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=xenomai.org; spf=pass smtp.mailfrom=xenomai.org; dkim=pass header.d=xenomai.org header.i=@xenomai.org header.a=rsa-sha256 header.s=gm1 header.b=YXCXztuO; arc=none smtp.remote-ip=217.70.183.196 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D70A5606A33F for ; Wed, 11 Nov 2026 17:32:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org D70A5606A33F Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=xenomai.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=xenomai.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=xenomai.org header.i=@xenomai.org header.a=rsa-sha256 header.s=gm1 header.b=YXCXztuO Received: by mail.gandi.net (Postfix) with ESMTPSA id 0C69F3F5AD; Wed, 11 Nov 2026 17:32:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xenomai.org; s=gm1; t=1794418348; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hULeypsyS1lq5Fg4QI7ReOHkMb24ac0KfX8f7idPbA4=; b=YXCXztuOjB6ekwG1sTrZFw0KnXM7uU7Ikjs+woKVH8ftJAICxMTWxjnj5ya+UXH47UEcpp M741PbiWPYkW+09mZA1yO0YGSOQ7r2Si1d9e8HTjnuDrtK/aAC4Zo7m7UI7TqQmI0lzH/n 77QOMcokgbzV6IfqY2AQtQl4XcWTSEwluOjHHtyjLNoxmiflUcG7FLi1iWG+/Sk9YsWT2t Z5bugvst2FJ1nWpyeEaIBwtd1/8CGbXTiRHzMeUgZzmknKdB38JXIf0VnZBaSBUXTUU3ov XuJzSsJ6yao3hQQbFX5HBhFm6CNsB2u61Pgus3+iJhszrEg+gqUFu6+C9d8cmA== From: Philippe Gerum To: Jan Kiszka Cc: Xenomai Subject: Re: O_OOB ABI In-Reply-To: <18f772e8-118f-46f6-963a-58db46724e24@siemens.com> (Jan Kiszka's message of "Wed, 11 Nov 2026 13:18:38 +0100") References: <18f772e8-118f-46f6-963a-58db46724e24@siemens.com> User-Agent: mu4e 1.12.12; emacs 30.2 Date: Wed, 11 Nov 2026 18:32:27 +0100 Message-ID: <87v76346l0.fsf@xenomai.org> X-Mailing-List: xenomai@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: rpm@xenomai.org X-GND-Score: -100 X-GND-Cause: 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 X-GND-State: clean Jan Kiszka writes: > Hi Philippe, > > FYI. I assume this is an evl-only topic - if at all: > > "O_OOB changed from 010000000000 (1<<30) to (1 << 29) starting with the > v7.2 port. That changes the userspace ABI compared with 6.18 and =E2=89= =A47.1." > (opus-5.5, while reviewing my 6.18 rebase) > Correct. Only the evl core enables the oob capability for regular drivers, which userland may request by setting O_OOB in the open flags. This is out of scope for cobalt. --=20 Philippe.