Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759784AbZASMrf (ORCPT ); Mon, 19 Jan 2009 07:47:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760072AbZASMqk (ORCPT ); Mon, 19 Jan 2009 07:46:40 -0500 Received: from mail.memset.com ([89.200.136.113]:43528 "EHLO mail.memset.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760193AbZASMqi (ORCPT ); Mon, 19 Jan 2009 07:46:38 -0500 Date: Mon, 19 Jan 2009 12:44:36 +0000 From: Nick Craig-Wood To: Stefan Richter Cc: David Wagner , linux-kernel@vger.kernel.org Subject: Re: Checking module parameters Message-ID: <20090119124436.GD1646@craig-wood.com> References: <20090119093814.BC18014CA88@irishsea.home.craig-wood.com> <497453B6.8090403@s5r6.in-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <497453B6.8090403@s5r6.in-berlin.de> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1952 Lines: 71 On Mon, Jan 19, 2009 at 11:19:34AM +0100, Stefan Richter wrote: > Nick Craig-Wood wrote: > > David Wagner wrote: > >> Is there a way to tell what options have been applied to a currently > >> loaded kernel module? > >> > >> I'm trying to force libata to use 1.5Gbps rather than 3Gbps, > ... > > I had to do this recently (under debian I ended up putting > > "libata force=1.5Gbps" into /etc/modules) > > > > You can check it is working by looking for something like this in the log > > > > [ 2.345058] ata1: FORCE: PHY spd limit set to 1.5Gbps > > [ 2.345058] ata1: SATA max UDMA/133 abar m2048@0xfb106000 port 0xfb106100 irq 218 > > There is also /sys/module/*/parameters/* which can be read and in some > cases even be written. It doesn't appear to show the force parameter. From the same server as above :- $ more /sys/module/libata/parameters/* | cat :::::::::::::: /sys/module/libata/parameters/acpi_gtf_filter :::::::::::::: 3 :::::::::::::: /sys/module/libata/parameters/allow_tpm :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/ata_probe_timeout :::::::::::::: 7500 :::::::::::::: /sys/module/libata/parameters/atapi_dmadir :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/atapi_enabled :::::::::::::: 1 :::::::::::::: /sys/module/libata/parameters/atapi_passthru16 :::::::::::::: 1 :::::::::::::: /sys/module/libata/parameters/dma :::::::::::::: 7 :::::::::::::: /sys/module/libata/parameters/fua :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/ignore_hpa :::::::::::::: 0 :::::::::::::: /sys/module/libata/parameters/noacpi :::::::::::::: 0 -- Nick Craig-Wood -- http://www.craig-wood.com/nick -- 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/