From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: Re: ACPI _SUN Date: Mon, 22 Jan 2007 19:16:48 -0500 Message-ID: <200701221916.48740.lenb@kernel.org> References: <80b0b9460701190156l7a7f95cdnc442787f7fb37b15@mail.gmail.com> <200701220200.32798.lenb@kernel.org> <80b0b9460701220006p4b8dc3a6i9bf274a63f679036@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:42048 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932560AbXAWASL (ORCPT ); Mon, 22 Jan 2007 19:18:11 -0500 In-Reply-To: <80b0b9460701220006p4b8dc3a6i9bf274a63f679036@mail.gmail.com> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Mohan Kumar Jami Cc: Bruno Ducrot , linux-acpi@vger.kernel.org On Monday 22 January 2007 03:06, Mohan Kumar Jami wrote: > Hi, > > Actually we need to retrieve the slot number (Using _SUN object) for > PCI where it is inserted. > But when we have gone through the DSDT table (SMBIOS version 2.3) , is > not having _SUN entry. > Is presence of _SUN is related to BIOS issue? > Is there any difference between SMBIOS and ACPI bios? > Is _SUN is optional in SMBIOS version 2.5 > I didn't clear about > Name (_SUN, 0x01) > Is that 0x01 is slot number or not? _SUN is a number that the system vendors thinks will mean something to a human. Eg it may correspond to a number painted on the outside of a machine. It doesn't necessarily have anything to do with electrical or logical slot numbers on a PCI bus, or any other bus for that matter. SMBIOS and ACPI BIOS are independent features of a BIOS. You can have one, the other, both, or neither. cheers, -Len