From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261455AbVFHRot (ORCPT ); Wed, 8 Jun 2005 13:44:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261445AbVFHRos (ORCPT ); Wed, 8 Jun 2005 13:44:48 -0400 Received: from mail.dvmed.net ([216.237.124.58]:18386 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S261463AbVFHRnv (ORCPT ); Wed, 8 Jun 2005 13:43:51 -0400 Message-ID: <42A72E4F.4040700@pobox.com> Date: Wed, 08 Jun 2005 13:43:43 -0400 From: Jeff Garzik User-Agent: Mozilla Thunderbird 1.0.2-6 (X11/20050513) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Robert White CC: Kumar Gala , Linux Kernel list Subject: Re: stupid SATA questions References: <10d4b7cd189d7b661a84e765ab8cce93@freescale.com> <42A5E0BF.8000103@pobox.com> <42A711FE.2080004@casabyte.com> In-Reply-To: <42A711FE.2080004@casabyte.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Robert White wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > > Since the title of the thread applies... > > What command (or whatever) does one use to do things like set the power > controls on a libata-controlled SATA drive? hdparm doesn't seem to do > anything but complain when I try to use the various features. You need "ATA passthru" (SMART support) in order for hdparm to work. > hdparm /dev/sda > /dev/sda: > IO_support = 0 (default 16-bit) > ... > > Does the "16-bit" mean anything or is it just a bogon? This is hardcoded. I doubt you will ever be able to change this. Jeff