From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Brownell Date: Mon, 06 May 2002 17:16:08 +0000 Subject: Re: PCI Hot Plug Operation Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org > > Do I need to install a driver for my card to make the kernel aware of a > > possible hot pluggable device? > > PCI Hotplug only works if you have a PCI Hotplug controller on your > motherboard. This is usually only on high end servers or cPCI machines. > Do you have such a machine? Erm, when did that change? There might be confusion about the several different types of PCI hotplug that can happen. It started out as a generic term in Linux, not specific to a specific technology. - The original Linux PCI hotplug support worked well for CardBus. Plug in a new CardBus device ("PC-Card" form factor with PCI bus, often mis-termed PCMCIA) and get a hotplug event. - Docking station support ... I'm not clear what the status here is, but some of them support CardBus, so they should inherit a certain level of hotplug support from that. - Compaq's "PCI Hotplug" support is, as Greg said, for higher end hardware ... aiming at "more nines than usual" availability. - The "Compact PCI" stuff is a different form factor (VME?) that is likewise targetted at high availability applications, where it is not practical to take systems down to reconfigure hardware. Admittedly you need to configure the support for those kinds of bus into your system, but "/sbin/hotplug pci" can be invoked without any "PCI Hotplug" (or CompactPCI) controller ... laptops do it. - Dave _______________________________________________________________ Have big pipes? SourceForge.net is looking for download mirrors. We supply the hardware. You get the recognition. Email Us: bandwidth@sourceforge.net _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel