From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yan Seiner Subject: Re: [PATCH] SCSI: Add the SGPIO support for sata_nv.c Date: Sun, 18 Jan 2009 05:49:58 -0800 Message-ID: <49733386.6000604@seiner.com> References: <20061031104055.GA8898@infradead.org> <15F501D1A78BD343BE8F4D8DB854566B0C8DDCF5@hkemmail01.nvidia.com> <86802c440711062009t7e98d27fqdfb466b9843da060@mail.gmail.com> <86802c440901180120u3e60e73dm53a37b7cd9034915@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from flatoutfitness.com ([66.178.130.209]:41607 "EHLO www.seiner.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759540AbZAROiv (ORCPT ); Sun, 18 Jan 2009 09:38:51 -0500 In-Reply-To: <86802c440901180120u3e60e73dm53a37b7cd9034915@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Peer Chen Cc: linux-ide@vger.kernel.org Yinghai Lu wrote: > On Tue, Nov 6, 2007 at 8:09 PM, Yinghai Lu wrote: > >> On Nov 7, 2006 1:55 AM, Peer Chen wrote: >> >>> Modified and resent out the patch as attachment. >>> Description about the patch: >>> Add SGPIO support in sata_nv.c. >>> SGPIO (Serial General Purpose Input Output) is a sideband serial 4-wire >>> interface that a storage controller uses to communicate with a storage >>> enclosure management controller, primarily to control activity and >>> status LEDs that are located within drive bays or on a storage >>> backplane. SGPIO is defined by [SFF8485]. >>> In this patch,we drive the LEDs to blink when read/write operation >>> happen on SATA drives connect the corresponding ports on MCP55 board. >>> I missed the start of this thread.... Is it possible to blink the lights from user space? This is very useful when trying to locate a dead or dying drive. for example, /dev/sdc dies, but I have no way of knowing which one it is without unplugging all the cables one at a time. A userspace utility that would allow me to blink a drive activity light would be very useful. --Yan