From owner-freebsd-hackers@FreeBSD.ORG Mon May 22 06:52:26 2006 Return-Path: X-Original-To: freebsd-hackers@FreeBSD.ORG Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8CCCD16A432 for ; Mon, 22 May 2006 06:52:26 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (vc4-2-0-87.dsl.netrack.net [199.45.160.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id CD72A43D4C for ; Mon, 22 May 2006 06:52:21 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost.village.org [IPv6:::1] (may be forged)) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k4M6oB2e059313; Mon, 22 May 2006 00:50:11 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Mon, 22 May 2006 00:50:10 -0600 (MDT) Message-Id: <20060522.005010.104089663.imp@bsdimp.com> To: avalonwallace@gmail.com From: Warner Losh In-Reply-To: <87ab37ab0605212328ue7c70fcu49c5fec8921ae229@mail.gmail.com> References: <87ab37ab0605210108w127a235bue281428f52bbc784@mail.gmail.com> <20060521.114807.74702188.imp@bsdimp.com> <87ab37ab0605212328ue7c70fcu49c5fec8921ae229@mail.gmail.com> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: misc questions about the device&driver arch X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 May 2006 06:52:26 -0000 > > That happens at attach time. Cardbus right now has a private protocol > > between the card bus bridge (cbb) and the bus to know when there's a > > new card in a slot and to enumerate that bus. > i think that 's because in cardbus protocol ,one bus only have one > device ,so does pci express port (port :device =1:1) Cool. I just bought a new laptop yesterday. It has an expresscard slot, which I think is handled as a PCI Express port (or USB 2.0 port, depending on the card that's inserted). > so there will be a long list of methods in the future hotplug pci > driver and pcib driver > SHPC interface .. > ....... > PCIE interface > ....... > compaq interface > ....... > IBM interface .... > ....... > poer interface > ....... Yes. If ExpressCard isn't handled by the PCIe interface, then we'd want to add it to the list as well. Warner