From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rajat Jain Date: Mon, 25 Jul 2005 02:49:22 +0000 Subject: Re: Re: Problem while inserting pciehp (PCI Express Hot-plug) driver Message-Id: List-Id: References: <20050725021747.67869.qmail@web34405.mail.mud.yahoo.com> In-Reply-To: <20050725021747.67869.qmail-6mNr3ekj/EivuULXzWHTWIglqE1Y4D90QQ4Iyu8u01E@public.gmane.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: rajat.noida.india-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-newbie-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, linux-hotplug-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, dkumar-QByN7dn/BetQWC9lL0RKGQC/G2K4zDHf@public.gmane.org > On Tue, Jul 12, 2005 at 06:01:22PM +0900, Rajat Jain > wrote: > > > Hi, > >=20 > > I'm trying to use the PCI Express Hot-Plug Controller driver > > (pciehp.ko) with Kernel 2.6 so that I can get hot-plug events=20 > > whenever I add a card to my PCI Express slot. > >=20 > > I built the driver as a module, and am trying to load it=20 > > manually using modprobe. However, when trying to insert, > > I'm getting the following error: > > > > pciehp: acpi_pciehprm:\_SB.PCI0 _OSC fails=3D0x5 > > pciehp: Both _OSC and OSHP methods do not exist > > FATAL: Error inserting pciehp > > > > (/lib/modules/2.6.9-5.18AXcustom-hotplug/kernel/drivers/pci/hotplug/pci= ehp.ko): > > No such device > > > --- Greg KH wrote: > Your bios does not support pci express hotplug. Are > you sure you have pci express hotplug hardware in your > system? If so, contact your bios vendor to get an=20 > updated version. >=20 > Good luck, >=20 > greg k-h Thanks for replying Greg. I checked again, I have the hardware in my system. I asked the vendor for bios update, but he says mine is the latest version. I downloaded the Intel "iasl" compiler (http://developer.intel.com/technology/iapc/acpi/downloads.htm), and used it to decompile "/proc/acpi/dsdt" file (in AML) to its equivalent ACPI source code. I could not find the _OSC and OSHP control methods there. Is this information sufficient enough to deduce that I need a BIOS update? And the hardware is OK but the problem is with the bios? Just out of curosity, I would appreciate if you could provide me pointers to OSHP and _OSC methods. What exactly do they mean? Does every hardware containing a hot-plug controller necessarily has to implement them both? I checked with ACPI Specs but it contains no refrence to "OSHP" method. Any pointers are more than appreciated, TIA, Rajat ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id=16492&op=CCk _______________________________________________ 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