Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932293AbWABAI6 (ORCPT ); Sun, 1 Jan 2006 19:08:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932295AbWABAI6 (ORCPT ); Sun, 1 Jan 2006 19:08:58 -0500 Received: from smtpout.e.telefonica.net ([213.4.134.162]:41546 "EHLO ZE3SMTPOUT010.e.telefonica.net") by vger.kernel.org with ESMTP id S932293AbWABAI5 (ORCPT ); Sun, 1 Jan 2006 19:08:57 -0500 Date: Mon, 2 Jan 2006 01:08:57 +0100 From: Eric Van Buggenhaut To: linux-kernel@vger.kernel.org Subject: [hw_random] device not detected/patch Message-ID: <20060102000856.GA11491@alterna.homelinux.org> Reply-To: Eric Van Buggenhaut MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Echelon: FBI WTC NSA Handgun Anthrax Afgahnistan Bomb Heroin Laden X-message-flag: Microsoft discourages the use of Outlook. User-Agent: Mutt/1.5.11 X-OriginalArrivalTime: 01 Jan 2006 23:54:31.0368 (UTC) FILETIME=[B571BC80:01C60F2E] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2586 Lines: 78 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/