Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965278AbWADTyl (ORCPT ); Wed, 4 Jan 2006 14:54:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965276AbWADTyk (ORCPT ); Wed, 4 Jan 2006 14:54:40 -0500 Received: from emailhub.stusta.mhn.de ([141.84.69.5]:23050 "HELO mailout.stusta.mhn.de") by vger.kernel.org with SMTP id S965185AbWADTyj (ORCPT ); Wed, 4 Jan 2006 14:54:39 -0500 Date: Wed, 4 Jan 2006 20:54:38 +0100 From: Adrian Bunk To: Eric Van Buggenhaut Cc: linux-kernel@vger.kernel.org, jgarzik@pobox.com, mpm@selenic.com Subject: Re: [hw_random] device not detected/patch Message-ID: <20060104195438.GT3831@stusta.de> References: <20060102000856.GA11491@alterna.homelinux.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060102000856.GA11491@alterna.homelinux.org> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2897 Lines: 87 Hi Eric, Jeff and Matt (Cc'ed) should hopefully be able to answer your questions. cu Adrian On Mon, Jan 02, 2006 at 01:08:57AM +0100, Eric Van Buggenhaut wrote: > I run a TP42 with 2.6.14.2 > > One of the pci device is > > 0000:00:1e.0 0604: 8086:2448 (rev 81) > Flags: bus master, fast devsel, latency 0 > Bus: primary=00, secondary=02, subordinate=08, sec-latency=64 > I/O behind bridge: 00004000-00008fff > Memory behind bridge: c0200000-cfffffff > Prefetchable memory behind bridge: e8000000-efffffff > > > discover sees it as a hw_random device > > # grep 80862448 /lib/discover/pci.lst > 80862448 bridge i810_rng 82801 Mobile PCI Bridge > > > and tries to load i810_rng module when support is really in hw_random: > > # cat drivers/char/hw_random.c > [...] > static struct pci_device_id rng_pci_tbl[] = { > { 0x1022, 0x7443, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_amd }, > { 0x1022, 0x746b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_amd }, > > { 0x8086, 0x2418, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x2428, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x2448, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x244e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x245e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > > { 0, }, /* terminate list */ > }; > > > device isn't detected though: > > # modprobe hw_random > FATAL: Error inserting hw_random (/lib/modules/2.6.14.2n/kernel/drivers/char/hw_random.ko): No such device > > hw_random: RNG not detected > > Why wouldn't module detect the device ? > > > OTOH, pci.lst also lists device 80862430 as another RNG > > # grep 80862430 /lib/discover/pci.lst > 80862430 bridge i810_rng 82801AB PCI Bridge > > but it's not listed in rng_pci_tbl[] > > Does > > --- drivers/char/hw_random.c.orig 2005-12-22 19:36:00.000000000 +0100 > +++ drivers/char/hw_random.c 2005-12-22 19:36:16.000000000 +0100 > @@ -155,6 +155,7 @@ > > { 0x8086, 0x2418, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x2428, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > + { 0x8086, 0x2430, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x2448, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x244e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > { 0x8086, 0x245e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel }, > > seem reasonable ? > > Please CC me on reply > > -- > Eric VAN BUGGENHAUT > ericvb@debian.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/