From owner-freebsd-hackers@FreeBSD.ORG Fri Mar 24 16:42:20 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DF97D16A401 for ; Fri, 24 Mar 2006 16:42:20 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (vc4-2-0-87.dsl.netrack.net [199.45.160.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id 593A843D49 for ; Fri, 24 Mar 2006 16:42:20 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost.village.org [127.0.0.1] (may be forged)) by harmony.bsdimp.com (8.13.3/8.13.3) with ESMTP id k2OGdcNr010290; Fri, 24 Mar 2006 09:39:45 -0700 (MST) (envelope-from imp@bsdimp.com) Date: Fri, 24 Mar 2006 09:40:07 -0700 (MST) Message-Id: <20060324.094007.11844900.imp@bsdimp.com> To: boris@brooknet.com.au From: "M. Warner Losh" In-Reply-To: <68641D4B-5E18-4EE3-B7E1-57C9CC060F9D@brooknet.com.au> References: <20060109183738.GA4822@odin.ac.hmc.edu> <20060110.223413.94073242.imp@bsdimp.com> <68641D4B-5E18-4EE3-B7E1-57C9CC060F9D@brooknet.com.au> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0 (harmony.bsdimp.com [127.0.0.1]); Fri, 24 Mar 2006 09:39:47 -0700 (MST) Cc: freebsd-hackers@freebsd.org, dgilbert@dclg.ca Subject: Re: Ricoh PCI to SD device? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Mar 2006 16:42:21 -0000 In message: <68641D4B-5E18-4EE3-B7E1-57C9CC060F9D@brooknet.com.au> Sam Lawrance writes: : : On 11/01/2006, at 4:34 PM, M. Warner Losh wrote: : : > In message: <20060109183738.GA4822@odin.ac.hmc.edu> : > Brooks Davis writes: : > : On Mon, Jan 09, 2006 at 11:12:30AM -0500, David Gilbert wrote: : > : > Has anyone had a look at the following: : > : > : > : > none1@pci3:1:2: class=0x080501 card=0x01aa1028 chip=0x08221180 : > rev=0x17 hdr=0x00 : > : > vendor = 'Ricoh Co Ltd' : > : > device = 'SD Bus Host Adapter' : > : > class = base peripheral : > : > : > : > This shows up on my new Dell XPS-170 laptop. Since there is no : > USB : > : > attachment for the SD card reader, I can only surmise that this is : > : > it. Is someone looking at this, or is this completely new? : > : : > : People are looking at it, but there are no docs available. : > Apparently, : > : there is some work being done to reverse engineer it. Linux doesn't : > : support it either. : > : > It does support the SDA Standard SD Host Adapter Interface. However, : > The standard costs $1000 (if you are a member of the SD Association, : > which I think is $1800 a year), and comes with an NDA so restrictive : > that you'll be lucky to release a binary only version of your driver. : > : > I'm working on a port of FreeBSD to an embedded platform. For that : > platform, we'll need to read data from MMC/SD cards. To do that, : > we'll need a mmc/sd disk driver, a mmc/sd bus and a mmc/sd bridge. : > This should give us a fairly good architecture to write a bridge : > driver for the SDA Standard SD Host Adapter Interface should someone : > ever figure out the interface. Tantalizing clues are available for : > the dilligent searcher on the web (the wikipedia entry for SD cards is : > especially enlightening). I have no plans to implement a the standard : > SD interface. : : Apparently there are linux patches which work with some SD host : controllers. Maybe these will be useful: : : http://www.martinhenze.de/2006/02/04/sd-card-reader-and-ubuntu-linux/ : http://list.drzeus.cx/pipermail/sdhci-devel/2006-January/000347.html : : (gleaned from SLUG IRCers) Thanks. I'll have to see if I can use the code here to good effect. Warner