From nobody Mon Feb 05 12:27:30 2024 X-Original-To: freebsd-questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4TT5HS6Msqz59rFv for ; Mon, 5 Feb 2024 12:27:32 +0000 (UTC) (envelope-from rockyhotas@post.com) Received: from mout.gmx.com (mout.gmx.com [74.208.4.201]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mout.gmx.com", Issuer "GeoTrust TLS RSA CA G1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4TT5HR71Bvz4nvB for ; Mon, 5 Feb 2024 12:27:31 +0000 (UTC) (envelope-from rockyhotas@post.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=post.com header.s=s1089575 header.b=UIp6pbro; dmarc=pass (policy=none) header.from=post.com; spf=pass (mx1.freebsd.org: domain of rockyhotas@post.com designates 74.208.4.201 as permitted sender) smtp.mailfrom=rockyhotas@post.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=post.com; s=s1089575; t=1707136050; x=1707740850; i=rockyhotas@post.com; bh=X/kW2QRc9BAsYMIgeBYOMLztSNcyRtuUq2lyoMRbDf4=; h=X-UI-Sender-Class:From:To:Subject:Date; b=UIp6pbrooHpXRgNljKkCvsU42wRcEfd+2bADYUmHrGExtn3vcfcYkXmh6YTI601V Q7nSpPXRn8zwzKjUoE0ydUZ/akFyEoDrS3q7wchvReIy8xLrhhA7XD3AuXErq6wSW 1oOxpvlVdQE9R7nJmAHE9Hn1QKfYtGZcxejrjAbW7F79hrvM149hLoCNjfQ7iP9gH tA/pihtyyDZ6uRqYCI3QYFDjJBWzyjSJ3riqM7PCKUwCExxmVknHAFpL8AW5iODdJ Hdb2NiPUKso81fnGz3jHkAJbzX9BeV/TBiLeg8iXk1iutiBQAYyvXKu7LxKen9ldD CtpU2Lgs/CgRduMF/A== X-UI-Sender-Class: f2cb72be-343f-493d-8ec3-b1efb8d6185a Received: from [47.53.116.27] ([47.53.116.27]) by web-mail.mail.com (3c-app-mailcom-lxa01.server.lan [10.76.45.2]) (via HTTP); Mon, 5 Feb 2024 13:27:30 +0100 List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org MIME-Version: 1.0 Message-ID: From: Rocky Hotas To: FreeBSD Questions Subject: acpi0 device Content-Type: text/plain; charset=UTF-8 Date: Mon, 5 Feb 2024 13:27:30 +0100 Importance: normal Sensitivity: Normal X-Priority: 3 X-Provags-ID: V03:K1:2UDqhTNUeMqKIzptEEtfZZr+Nebs0HXY1Mru8P35UnkPXKWg+DxTgrakL6qwcjOBA/8Wf zZnneUKs0sP8ArXa3Wb9RKklUHoyoiekH7/V2XWg6GuefF1jX4RELoBapOPIyqMp7CAhepjqJ+uE 1utq+8e0pMUA5QFb9otithx2KNPot5uj5+9jkYCCLKftT6hYYm07QqP2RZNZj51n6u23LTg0XB3r UH2lC0fy1NMeTjvnK7NMZRbIsB6XjWIe96R+fHXRq+6BKBbJ8dv+Xt6PTIf1w/oH5wrqEHV/XuEV /E= X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:L/xDQhbmRlU=;8TLJcQTzeIkPQX06gtFjvU/mgSU DsQ8HbhurQouJSu8H0nAtHdLan6eyvIz8VwbfuUWXrV44iTdy7aZ/pGciblGGrpLvxPWWF8zN oHyNR6crHvB0KEYMZSz9e8FyKWSr8oTZjrPE2TUgeSc/GVeY7eUPNXsI3SaVKslxOKV6Sq2Ms zAJcWQMhm7yN4+L0YY12wC3bFDw1znaM9natcvEULyGOLBNneIv1E6WNRHqfyNHkhdWF3DgBO XRzyioTkpcYLvH4hRKEkupHDaG9aQsG4x31Y99cCmlO8x6+K96+Gro16jv5Rrl/fLM2onnLyx Da/y3ts8/55m2Ktjs0+05JEKzjc+0fOt2bMjh2zk4QWY/EjlcHbQ4s59dVzxfMJCWSMB0Jprs 7ACwwIhKIH9xhNSySu8+1nTqGFdoax8r9UaJx8UYPvnk20FThI8mL8lUyFX/JJyhVeUC8t2+P coNo3JkYySkkQEhagtGBxySLCqzkK/7H2FyDwEAriiFBOgay7bLhd6zQOii30VIJNyimZOeJ3 AbQ2ij5SwQ56kgZODn3nAGuiOzgdlkYIRDys0HD/omIr1p+QKTkIuuwFARrQXODwPgZMp/3gN J4yHLh/53tERQMMn/8z51Ak9F273MDBDPVAX7kG/oLXJV8LdwxsT+1oS0sLTVNJ2MTV04jMtk +icGM/0cmvzyH6/7FS/qX45wXl1QEdSdIB4+MVyX12BsN0Nf7AJqFqGyqG/nbxY= Content-Transfer-Encoding: quoted-printable X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.63 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-0.998]; NEURAL_HAM_LONG(-1.00)[-0.997]; NEURAL_HAM_SHORT(-0.93)[-0.933]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[post.com,none]; RWL_MAILSPIKE_VERYGOOD(-0.20)[74.208.4.201:from]; R_DKIM_ALLOW(-0.20)[post.com:s=s1089575]; R_SPF_ALLOW(-0.20)[+a:mout.gmx.com]; RCVD_IN_DNSWL_LOW(-0.10)[74.208.4.201:from]; MIME_GOOD(-0.10)[text/plain]; ONCE_RECEIVED(0.10)[]; ARC_NA(0.00)[]; TO_DN_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; DKIM_TRACE(0.00)[post.com:+]; MLMMJ_DEST(0.00)[freebsd-questions@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; HAS_X_PRIO_THREE(0.00)[3]; ASN(0.00)[asn:8560, ipnet:74.208.0.0/16, country:DE]; MISSING_XM_UA(0.00)[]; RCVD_COUNT_ONE(0.00)[1]; FREEMAIL_FROM(0.00)[post.com]; FREEMAIL_ENVFROM(0.00)[post.com] X-Rspamd-Queue-Id: 4TT5HR71Bvz4nvB Hello! According to Absolute FreeBSD (by Michael W. Lucas, 3rd Edition, Chapter 6), acpi0 is the "first device in the system", so probably it acts as root device of the device tree. Sometimes acpi0 refers to the motherboard, sometimes to the case manufacturer; it may also mention the power button. But what does it exactly represent? Is it just a logical starting point for the device tree, or is there some physical device behind it? I did not find much information about this in acpi(4), which keeps being generic about ACPI. Is there is some other reference or manpage that deals with this? Bye! Rocky