From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 08:20:57 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1921816A415 for ; Mon, 18 Sep 2006 08:20:57 +0000 (UTC) (envelope-from mail@sashi.de) Received: from server56.greatnet.de (server56.greatnet.de [83.133.97.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8E84743D76 for ; Mon, 18 Sep 2006 08:20:55 +0000 (GMT) (envelope-from mail@sashi.de) Received: from [192.168.1.70] (unknown [87.193.41.167]) by server56.greatnet.de (Postfix) with ESMTP id 1216D60A6F for ; Mon, 18 Sep 2006 10:20:49 +0200 (CEST) Message-ID: <450E571A.8030200@sashi.de> Date: Mon, 18 Sep 2006 10:21:46 +0200 From: Marian Asokarajan User-Agent: Mozilla Thunderbird 1.0.6 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-drivers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mail@sashi.de List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 08:20:57 -0000 Hello, I'm trying to write an universal SD Host-Controller Device Driver, which I'd like to contribute to the FreeBSD community. So far the driver is able to recognize SD card insertion and removal. Via a device node (/dev/sdhci0), it's also possible to dump the SDHC's register set. Could someone please help testing the code ? The kernel module and sources can be download here: http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-0.0.1.tbz * NOTE: The driver is experimental and might crash your system! I'm developing it on an ASUS laptop with a RICOH chipset and it's the only chipset (beside Texas Instruments) supported. Therefore, it would be great to receive a "pciconf -lv" block of other SD host controllers. Thanks for your help. Regards, Sashi From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 11:27:10 2006 Return-Path: X-Original-To: freebsd-drivers@FreeBSD.ORG Delivered-To: freebsd-drivers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 44E6916A403 for ; Mon, 18 Sep 2006 11:27:10 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [83.120.8.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7B15843D49 for ; Mon, 18 Sep 2006 11:27:09 +0000 (GMT) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (jylqnu@localhost [127.0.0.1]) by lurza.secnetix.de (8.13.4/8.13.4) with ESMTP id k8IBR3PF093001; Mon, 18 Sep 2006 13:27:08 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.13.4/8.13.1/Submit) id k8IBR3uZ093000; Mon, 18 Sep 2006 13:27:03 +0200 (CEST) (envelope-from olli) Date: Mon, 18 Sep 2006 13:27:03 +0200 (CEST) Message-Id: <200609181127.k8IBR3uZ093000@lurza.secnetix.de> From: Oliver Fromme To: freebsd-drivers@FreeBSD.ORG, mail@sashi.de In-Reply-To: <450E571A.8030200@sashi.de> X-Newsgroups: list.freebsd-drivers User-Agent: tin/1.8.0-20051224 ("Ronay") (UNIX) (FreeBSD/4.11-STABLE (i386)) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Mon, 18 Sep 2006 13:27:08 +0200 (CEST) Cc: Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 11:27:10 -0000 Marian Asokarajan wrote: > I'm trying to write an universal SD Host-Controller Device Driver, > which I'd like to contribute to the FreeBSD community. That's very cool! > So far the driver is able to recognize SD card insertion and removal. > Via a device node (/dev/sdhci0), it's also possible to dump > the SDHC's register set. > > Could someone please help testing the code ? > The kernel module and sources can be download here: > http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-0.0.1.tbz > * NOTE: The driver is experimental and might crash your system! For which version of FreeBSD is it? I'm running RELENG_6 on my notebook, which has two such slots (one for SD cards and one Sony memory sticks). If your driver works on RELENG_6, I can try it when I have some free time. none3@pci6:9:2: class=0x080500 card=0xc01a144d chip=0x08221180 rev=0x17 hdr=0x00 vendor = 'Ricoh Co Ltd' device = 'SD Bus Host Adapter' class = base peripheral none4@pci6:9:3: class=0x088000 card=0xc01a144d chip=0x05921180 rev=0x08 hdr=0x00 vendor = 'Ricoh Co Ltd' device = 'Memory Stick Bus Host Adapter' class = base peripheral It's a Samsung X20-XVM 1600-V notebook (Pentium-M / Centrino with i915 chipset). I like it very much, because all of the components are supported by FreeBSD, except for the SD and memory stick slots. I don't have any memory sticks, so I don't care, but I do have an SD card which I use with my Zaurus PDA (running Linux), and it would be very nice to access it directly with the notebook, without having to use a USB cardreader. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. "C++ is over-complicated nonsense. And Bjorn Shoestrap's book a danger to public health. I tried reading it once, I was in recovery for months." -- Cliff Sarginson From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 11:57:18 2006 Return-Path: X-Original-To: freebsd-drivers@FreeBSD.ORG Delivered-To: freebsd-drivers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4515216A4D2 for ; Mon, 18 Sep 2006 11:57:18 +0000 (UTC) (envelope-from mail@sashi.de) Received: from server56.greatnet.de (server56.greatnet.de [83.133.97.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id B26D443E94 for ; Mon, 18 Sep 2006 11:54:42 +0000 (GMT) (envelope-from mail@sashi.de) Received: from [192.168.1.70] (unknown [87.193.41.167]) by server56.greatnet.de (Postfix) with ESMTP id BA48060DE1; Mon, 18 Sep 2006 13:54:40 +0200 (CEST) Message-ID: <450E8941.2060301@sashi.de> Date: Mon, 18 Sep 2006 13:55:45 +0200 From: Marian Asokarajan User-Agent: Mozilla Thunderbird 1.0.6 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Oliver Fromme References: <200609181127.k8IBR3uZ093000@lurza.secnetix.de> In-Reply-To: <200609181127.k8IBR3uZ093000@lurza.secnetix.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-drivers@FreeBSD.ORG Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mail@sashi.de List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 11:57:18 -0000 Oliver Fromme wrote: > For which version of FreeBSD is it? I'm running RELENG_6 on Sorry, I forgot to mention it. I'm working with 6.0-RELEASE. > none3@pci6:9:2: class=0x080500 card=0xc01a144d chip=0x08221180 rev=0x17 hdr=0x00 That's the same config (ricoh chip) as it is in my Asus (A6vm) Laptop, so it should work perfectly (i hope :) ) with yours! The driver is only for the SD Bus Host Adapter. > Zaurus PDA (running Linux), and it would be very nice to > access it directly with the notebook, without having to use > a USB cardreader. That's the same reason why I started working on the driver ;-) It's a bit challenging to write a device driver on your spare time with rare documentation, so I cannot promise you anything. Thanks for your help. Best Regards, Sashi From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 14:40:24 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5DFC316A49E for ; Mon, 18 Sep 2006 14:40:24 +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 39E6743D6A for ; Mon, 18 Sep 2006 14:39:07 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k8IEcgIY018902; Mon, 18 Sep 2006 08:38:43 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Mon, 18 Sep 2006 08:37:58 -0600 (MDT) Message-Id: <20060918.083758.63053354.imp@bsdimp.com> To: mail@sashi.de From: "M. Warner Losh" In-Reply-To: <450E571A.8030200@sashi.de> References: <450E571A.8030200@sashi.de> X-Mailer: Mew version 4.2 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]); Mon, 18 Sep 2006 08:38:43 -0600 (MDT) Cc: freebsd-drivers@freebsd.org Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 14:40:24 -0000 In message: <450E571A.8030200@sashi.de> Marian Asokarajan writes: : Hello, : : I'm trying to write an universal SD Host-Controller Device Driver, : which I'd like to contribute to the FreeBSD community. : So far the driver is able to recognize SD card insertion and removal. : Via a device node (/dev/sdhci0), it's also possible to dump : the SDHC's register set. : : Could someone please help testing the code ? : The kernel module and sources can be download here: : http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-0.0.1.tbz : * NOTE: The driver is experimental and might crash your system! : : I'm developing it on an ASUS laptop with a RICOH chipset and : it's the only chipset (beside Texas Instruments) supported. : Therefore, it would be great to receive a "pciconf -lv" block : of other SD host controllers. : : Thanks for your help. I'll be happy to do so. I too am working on the SD/MMC card stack. I have one boot loader for the AT91RM9200 working, and have been hacking on a quick and dirty driver for that part, but it needs to have the transport layer separated out from the MMC/SD protocol goo. Maybe we can work together to produce something that fits both our needs? Warner From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 16:40:11 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5E1B016A403 for ; Mon, 18 Sep 2006 16:40:11 +0000 (UTC) (envelope-from mail@sashi.de) Received: from server56.greatnet.de (server56.greatnet.de [83.133.97.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id D6B7743D45 for ; Mon, 18 Sep 2006 16:40:10 +0000 (GMT) (envelope-from mail@sashi.de) Received: from [49.1.1.104] (p54B02598.dip0.t-ipconnect.de [84.176.37.152]) by server56.greatnet.de (Postfix) with ESMTP id 2370F609B1; Mon, 18 Sep 2006 18:39:56 +0200 (CEST) Message-ID: <450ECC1C.6070005@sashi.de> Date: Mon, 18 Sep 2006 18:41:00 +0200 From: Marian Asokarajan User-Agent: Mozilla Thunderbird 1.0.6 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "M. Warner Losh" References: <450E571A.8030200@sashi.de> <20060918.083758.63053354.imp@bsdimp.com> In-Reply-To: <20060918.083758.63053354.imp@bsdimp.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-drivers@freebsd.org Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mail@sashi.de List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 16:40:11 -0000 M. Warner Losh wrote: > In message: <450E571A.8030200@sashi.de> > I too am working on the SD/MMC card stack. I have one boot loader for > the AT91RM9200 working, and have been hacking on a quick and dirty > driver for that part, but it needs to have the transport layer > separated out from the MMC/SD protocol goo. Maybe we can work > together to produce something that fits both our needs? Ofcourse, I'd love to help you out! My goal is to implement a SD-Bus on which the SD/SDIO drivers can attach to. My knowledge of FreeBSD Kernel is poor and at the moment I'm walking through driver sources of usb, trying to understand the (New-)Bus architecture (hope it's the right place?!). So if you still want to work with me ;-) , I could implement the bus interface on which your MMC/SD stack can attach to. Regards, Sashi From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 16:59:52 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5CDC516A40F for ; Mon, 18 Sep 2006 16:59:52 +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 E814143D7C for ; Mon, 18 Sep 2006 16:59:45 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k8IGvtsv020792; Mon, 18 Sep 2006 10:57:55 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Mon, 18 Sep 2006 10:57:09 -0600 (MDT) Message-Id: <20060918.105709.179960957.imp@bsdimp.com> To: mail@sashi.de From: "M. Warner Losh" In-Reply-To: <20060918.083758.63053354.imp@bsdimp.com> References: <450E571A.8030200@sashi.de> <20060918.083758.63053354.imp@bsdimp.com> X-Mailer: Mew version 4.2 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]); Mon, 18 Sep 2006 10:57:56 -0600 (MDT) Cc: freebsd-drivers@freebsd.org Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 16:59:52 -0000 In message: <20060918.083758.63053354.imp@bsdimp.com> "M. Warner Losh" writes: : In message: <450E571A.8030200@sashi.de> : Marian Asokarajan writes: : : Hello, : : : : I'm trying to write an universal SD Host-Controller Device Driver, : : which I'd like to contribute to the FreeBSD community. : : So far the driver is able to recognize SD card insertion and removal. : : Via a device node (/dev/sdhci0), it's also possible to dump : : the SDHC's register set. : : : : Could someone please help testing the code ? : : The kernel module and sources can be download here: : : http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-0.0.1.tbz : : * NOTE: The driver is experimental and might crash your system! It crashes mine. I did tweak it a little to make it reconize the host controller generically (there's little chance we'd keep up with all the bridges anyway). What's the current level? I didn't get it to see insert/remove from my slot: none6@pci6:4:3: class=0x018000 card=0x30a4103c chip=0x8033104c rev=0x00 hdr=0x00 vendor = 'Texas Instruments (TI)' device = 'PCIxx21 Integrated FlashMedia Controller' class = mass storage There's tests for slots that aren't quite right. It and's with 0x70, but tests to see > 5, which it always will be if any of the bits are set. The code should use more of the higher level interfaces in FreeBSD for accessing the pci bus. The code should stive to be more style(9) compliant. Its style is so different from the usual as to be difficult to read. Warner : : I'm developing it on an ASUS laptop with a RICOH chipset and : : it's the only chipset (beside Texas Instruments) supported. : : Therefore, it would be great to receive a "pciconf -lv" block : : of other SD host controllers. : : : : Thanks for your help. : : I'll be happy to do so. : : I too am working on the SD/MMC card stack. I have one boot loader for : the AT91RM9200 working, and have been hacking on a quick and dirty : driver for that part, but it needs to have the transport layer : separated out from the MMC/SD protocol goo. Maybe we can work : together to produce something that fits both our needs? From owner-freebsd-drivers@FreeBSD.ORG Mon Sep 18 17:05:43 2006 Return-Path: X-Original-To: freebsd-drivers@FreeBSD.ORG Delivered-To: freebsd-drivers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D12B616A407 for ; Mon, 18 Sep 2006 17:05:43 +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 5EFFA43D53 for ; Mon, 18 Sep 2006 17:05:43 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k8IH4Zu0020888; Mon, 18 Sep 2006 11:04:35 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Mon, 18 Sep 2006 11:03:51 -0600 (MDT) Message-Id: <20060918.110351.-233672614.imp@bsdimp.com> To: mail@sashi.de From: "M. Warner Losh" In-Reply-To: <450ECC1C.6070005@sashi.de> References: <450E571A.8030200@sashi.de> <20060918.083758.63053354.imp@bsdimp.com> <450ECC1C.6070005@sashi.de> X-Mailer: Mew version 4.2 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]); Mon, 18 Sep 2006 11:04:36 -0600 (MDT) Cc: freebsd-drivers@FreeBSD.ORG Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Sep 2006 17:05:43 -0000 In message: <450ECC1C.6070005@sashi.de> Marian Asokarajan writes: : M. Warner Losh wrote: : > In message: <450E571A.8030200@sashi.de> : > I too am working on the SD/MMC card stack. I have one boot loader for : > the AT91RM9200 working, and have been hacking on a quick and dirty : > driver for that part, but it needs to have the transport layer : > separated out from the MMC/SD protocol goo. Maybe we can work : > together to produce something that fits both our needs? : Ofcourse, I'd love to help you out! : My goal is to implement a SD-Bus on which the SD/SDIO drivers can : attach to. My knowledge of FreeBSD Kernel is poor and at the moment I'm : walking through driver sources of usb, trying to understand the : (New-)Bus architecture (hope it's the right place?!). Don't use usb driver as a good example of how to write FreeBSD driver code. It was ported from NetBSD badly. pccard might be a better place to look. : So if you still want to work with me ;-) , I could implement the bus : interface on which your MMC/SD stack can attach to. Sounds cool. Warner From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 13:20:10 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0DB9A16A412 for ; Tue, 19 Sep 2006 13:20:09 +0000 (UTC) (envelope-from bounces@nabble.com) Received: from talk.nabble.com (www.nabble.com [72.21.53.35]) by mx1.FreeBSD.org (Postfix) with ESMTP id BD4F443D5A for ; Tue, 19 Sep 2006 13:20:09 +0000 (GMT) (envelope-from bounces@nabble.com) Received: from [72.21.53.38] (helo=jubjub.nabble.com) by talk.nabble.com with esmtp (Exim 4.50) id 1GPfWC-0007AP-VN for freebsd-drivers@freebsd.org; Tue, 19 Sep 2006 06:20:08 -0700 Message-ID: <6387977.post@talk.nabble.com> Date: Tue, 19 Sep 2006 06:20:08 -0700 (PDT) From: Gireesh To: freebsd-drivers@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Nabble-From: gireesh.nagabhushana@neterion.com Subject: Reading configuration file from driver during load X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 13:20:10 -0000 Hi All, I have a driver which has some parameters hardcoded as of now. It requires values of these parameters to be available during load (during attach function). My requirement is to read these parameters from a configuration file so that we can load driver with different values to parameters without rebuilding driver. Is there any way of reading such configuration files from driver during load? Thanks, Gireesh -- View this message in context: http://www.nabble.com/Reading-configuration-file-from-driver-during-load-tf2298986.html#a6387977 Sent from the freebsd-drivers mailing list archive at Nabble.com. From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 13:46:20 2006 Return-Path: X-Original-To: freebsd-drivers@FreeBSD.ORG Delivered-To: freebsd-drivers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3852A16A412 for ; Tue, 19 Sep 2006 13:46:20 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [83.120.8.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id B4FA843D5F for ; Tue, 19 Sep 2006 13:46:16 +0000 (GMT) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (bqjylq@localhost [127.0.0.1]) by lurza.secnetix.de (8.13.4/8.13.4) with ESMTP id k8JDk9jl076220; Tue, 19 Sep 2006 15:46:14 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.13.4/8.13.1/Submit) id k8JDk9b3076219; Tue, 19 Sep 2006 15:46:09 +0200 (CEST) (envelope-from olli) Date: Tue, 19 Sep 2006 15:46:09 +0200 (CEST) Message-Id: <200609191346.k8JDk9b3076219@lurza.secnetix.de> From: Oliver Fromme To: freebsd-drivers@FreeBSD.ORG, gireesh.nagabhushana@neterion.com In-Reply-To: <6387977.post@talk.nabble.com> X-Newsgroups: list.freebsd-drivers User-Agent: tin/1.8.0-20051224 ("Ronay") (UNIX) (FreeBSD/4.11-STABLE (i386)) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Tue, 19 Sep 2006 15:46:15 +0200 (CEST) Cc: Subject: Re: Reading configuration file from driver during load X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-drivers@FreeBSD.ORG, gireesh.nagabhushana@neterion.com List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 13:46:20 -0000 Gireesh wrote: > I have a driver which has some parameters hardcoded as of now. It requires > values of these parameters to be available during load (during attach > function). My requirement is to read these parameters from a configuration > file so that we can load driver with different values to parameters without > rebuilding driver. I think that sysctl or kenv variables are best suited for that purpose. There are a lot of examples for that in existing drivers. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. We're sysadmins. To us, data is a protocol-overhead. From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 13:54:02 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DD5A16A416 for ; Tue, 19 Sep 2006 13:54:02 +0000 (UTC) (envelope-from mail@sashi.de) Received: from server56.greatnet.de (server56.greatnet.de [83.133.97.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9EF6A43D49 for ; Tue, 19 Sep 2006 13:53:56 +0000 (GMT) (envelope-from mail@sashi.de) Received: from [192.168.1.70] (unknown [84.245.168.227]) by server56.greatnet.de (Postfix) with ESMTP id 0BEAC60A7E; Tue, 19 Sep 2006 15:53:51 +0200 (CEST) Message-ID: <450FF6B2.2000908@sashi.de> Date: Tue, 19 Sep 2006 15:54:58 +0200 From: Marian Asokarajan User-Agent: Mozilla Thunderbird 1.0.6 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "M. Warner Losh" References: <450E571A.8030200@sashi.de> <20060918.083758.63053354.imp@bsdimp.com> <20060918.105709.179960957.imp@bsdimp.com> In-Reply-To: <20060918.105709.179960957.imp@bsdimp.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-drivers@freebsd.org Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 13:54:02 -0000 M. Warner Losh wrote: > : : * NOTE: The driver is experimental and might crash your system! > > It crashes mine. I did tweak it a little to make it reconize the host oops. Seems chip 0x8033 doesn't follow specs definied by sdcard.org ?! I got the TI 0x803C by reading out driver details from a windows machine (HP Laptop) in a shopping mall :) > What's the current level? I didn't get it to see insert/remove from > my slot: What do you mean by "current level" ? > There's tests for slots that aren't quite right. It and's with 0x70, > but tests to see > 5, which it always will be if any of the bits are > set. Oops, huge bad mistake :( . Thanks for pointing that out. I forgot the prefix "0x". the line now says: if (sc->firstBARat>0x05 || sc->slots>0x50) ... > The code should use more of the higher level interfaces in > FreeBSD for accessing the pci bus. Could you please give me hint on that ? I thought bus_space_* is already an abstraction of the PCI bus (guess, I realy have to walk through the pccard sources). > The code should stive to be more style(9) compliant. Its style is so > different from the usual as to be difficult to read. I printed out the man pages and had it as my bedtime lecture ;) The code has been now "styled" a bit. I'll later setup a web page with current codefile. for now the code is available at: http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-current.tbz Regards, Sashi From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 14:24:44 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 82D7416A40F for ; Tue, 19 Sep 2006 14:24:44 +0000 (UTC) (envelope-from bounces@nabble.com) Received: from talk.nabble.com (www.nabble.com [72.21.53.35]) by mx1.FreeBSD.org (Postfix) with ESMTP id E09A443D78 for ; Tue, 19 Sep 2006 14:24:41 +0000 (GMT) (envelope-from bounces@nabble.com) Received: from [72.21.53.38] (helo=jubjub.nabble.com) by talk.nabble.com with esmtp (Exim 4.50) id 1GPgWf-0001Mm-Dz for freebsd-drivers@freebsd.org; Tue, 19 Sep 2006 07:24:41 -0700 Message-ID: <6389336.post@talk.nabble.com> Date: Tue, 19 Sep 2006 07:24:41 -0700 (PDT) From: Gireesh To: freebsd-drivers@freebsd.org In-Reply-To: <200609191346.k8JDk9b3076219@lurza.secnetix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Nabble-From: gireesh.nagabhushana@neterion.com References: <6387977.post@talk.nabble.com> <200609191346.k8JDk9b3076219@lurza.secnetix.de> Subject: Re: Reading configuration file from driver during load X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 14:24:44 -0000 Oliver Fromme wrote: > > Gireesh wrote: > > I have a driver which has some parameters hardcoded as of now. It > requires > > values of these parameters to be available during load (during attach > > function). My requirement is to read these parameters from a > configuration > > file so that we can load driver with different values to parameters > without > > rebuilding driver. > > I think that sysctl or kenv variables are best suited for > that purpose. There are a lot of examples for that in > existing drivers. > > Best regards > Oliver > > -- > Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing > Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd > Any opinions expressed in this message may be personal to the author > and may not necessarily reflect the opinions of secnetix in any way. > > We're sysadmins. To us, data is a protocol-overhead. > _______________________________________________ > freebsd-drivers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-drivers > To unsubscribe, send any mail to "freebsd-drivers-unsubscribe@freebsd.org" > > Thanks Oliver for your reply. We can use sysctls. But we should have created those sysctl entries before loading driver. Otherwise, we have to use a kernel module to create those entries. Do we have any way of avoiding this? Thanks, Gireesh -- View this message in context: http://www.nabble.com/Reading-configuration-file-from-driver-during-load-tf2298986.html#a6389336 Sent from the freebsd-drivers mailing list archive at Nabble.com. From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 14:46:05 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2DE4A16A47B for ; Tue, 19 Sep 2006 14:46:05 +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 CFA8743D5C for ; Tue, 19 Sep 2006 14:45:17 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k8JEhr4Y037059; Tue, 19 Sep 2006 08:43:53 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Tue, 19 Sep 2006 08:43:53 -0600 (MDT) Message-Id: <20060919.084353.41650344.imp@bsdimp.com> To: freebsd-drivers@freebsd.org, gireesh.nagabhushana@neterion.com, olli@lurza.secnetix.de From: Warner Losh In-Reply-To: <200609191346.k8JDk9b3076219@lurza.secnetix.de> References: <6387977.post@talk.nabble.com> <200609191346.k8JDk9b3076219@lurza.secnetix.de> 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]); Tue, 19 Sep 2006 08:43:53 -0600 (MDT) Cc: Subject: Re: Reading configuration file from driver during load X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 14:46:05 -0000 From: Oliver Fromme Subject: Re: Reading configuration file from driver during load Date: Tue, 19 Sep 2006 15:46:09 +0200 (CEST) > Gireesh wrote: > > I have a driver which has some parameters hardcoded as of now. It requires > > values of these parameters to be available during load (during attach > > function). My requirement is to read these parameters from a configuration > > file so that we can load driver with different values to parameters without > > rebuilding driver. > > I think that sysctl or kenv variables are best suited for > that purpose. There are a lot of examples for that in > existing drivers. The 'kenv' variables are best wrapped in the tunable interfaces. For example: u_long cbb_start_16_io = CBB_START_16_IO; TUNABLE_ULONG("hw.cbb.start_16_io", &cbb_start_16_io); SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_16_io, CTLFLAG_RW, &cbb_start_16_io, CBB_START_16_IO, "Starting ioport for 16-bit cards"); This is from the cbb driver. It is a hint/tunable that can also set the starting I/O port address range to use for 16-bit cards. Users can either place the following line in /boot/loader.conf or in /etc/sysctl.conf. hw.cbb.start_16_io=0x300 The former sets it at attach time, while the latter sets it early in the boot process, but after it has attached. You can also set it at run-time: sysctl hw.cbb.start_16_io=0x300 Warner From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 14:51:32 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8715516A548 for ; Tue, 19 Sep 2006 14:51:32 +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 1990043E7F for ; Tue, 19 Sep 2006 14:48:15 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k8JElvq4037099; Tue, 19 Sep 2006 08:47:57 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Tue, 19 Sep 2006 08:47:57 -0600 (MDT) Message-Id: <20060919.084757.78728269.imp@bsdimp.com> To: gireesh.nagabhushana@neterion.com From: Warner Losh In-Reply-To: <6389336.post@talk.nabble.com> References: <6387977.post@talk.nabble.com> <200609191346.k8JDk9b3076219@lurza.secnetix.de> <6389336.post@talk.nabble.com> 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]); Tue, 19 Sep 2006 08:47:57 -0600 (MDT) Cc: freebsd-drivers@freebsd.org Subject: Re: Reading configuration file from driver during load X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 14:51:32 -0000 > Do we have any way of avoiding this? Yes. You can use tunables from kenv. I posted one example of how to do this. Please let me know if you need to do this on a per-device basis, and I'll point you at a driver that does this. Warner From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 14:51:48 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7BDB316A49E for ; Tue, 19 Sep 2006 14:51:48 +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 D43A543E97 for ; Tue, 19 Sep 2006 14:48:58 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.4/8.13.4) with ESMTP id k8JEk2YK037080; Tue, 19 Sep 2006 08:46:02 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Tue, 19 Sep 2006 08:46:02 -0600 (MDT) Message-Id: <20060919.084602.71108867.imp@bsdimp.com> To: mail@sashi.de From: Warner Losh In-Reply-To: <450FF6B2.2000908@sashi.de> References: <20060918.083758.63053354.imp@bsdimp.com> <20060918.105709.179960957.imp@bsdimp.com> <450FF6B2.2000908@sashi.de> 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]); Tue, 19 Sep 2006 08:46:03 -0600 (MDT) Cc: freebsd-drivers@freebsd.org Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 14:51:48 -0000 From: Marian Asokarajan Subject: Re: SDHCI Device Driver (first steps) Date: Tue, 19 Sep 2006 15:54:58 +0200 > M. Warner Losh wrote: > > : : * NOTE: The driver is experimental and might crash your system! > > > > It crashes mine. I did tweak it a little to make it reconize the host > oops. Seems chip 0x8033 doesn't follow specs definied by sdcard.org ?! > I got the TI 0x803C by reading out driver details from a windows machine > (HP Laptop) in a shopping mall :) It does follow the specs, as far as I can tell. It crahsed when I tried to fdisk the device that was created... > > What's the current level? I didn't get it to see insert/remove from > > my slot: > What do you mean by "current level" ? What's expected to work? > > There's tests for slots that aren't quite right. It and's with 0x70, > > but tests to see > 5, which it always will be if any of the bits are > > set. > Oops, huge bad mistake :( . Thanks for pointing that out. > I forgot the prefix "0x". the line now says: > if (sc->firstBARat>0x05 || sc->slots>0x50) ... Shouldn't slots be shifted instead? > > The code should use more of the higher level interfaces in > > FreeBSD for accessing the pci bus. > Could you please give me hint on that ? I thought bus_space_* is already > an abstraction of the PCI bus (guess, I realy have to walk through the > pccard sources). pci_get_vendorid() is what I had in mind. > > The code should stive to be more style(9) compliant. Its style is so > > different from the usual as to be difficult to read. > I printed out the man pages and had it as my bedtime lecture ;) > The code has been now "styled" a bit. I'll later setup a web page > with current codefile. for now the code is available at: > http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-current.tbz I'll take another look. Thanks! Warner From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 16:51:40 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F012316A4F3 for ; Tue, 19 Sep 2006 16:51:40 +0000 (UTC) (envelope-from mail@sashi.de) Received: from server56.greatnet.de (server56.greatnet.de [83.133.97.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2828943D66 for ; Tue, 19 Sep 2006 16:51:38 +0000 (GMT) (envelope-from mail@sashi.de) Received: from [49.1.1.104] (p54B02374.dip0.t-ipconnect.de [84.176.35.116]) by server56.greatnet.de (Postfix) with ESMTP id 91CDB60A61; Tue, 19 Sep 2006 18:51:36 +0200 (CEST) Message-ID: <4510205E.6010606@sashi.de> Date: Tue, 19 Sep 2006 18:52:46 +0200 From: Marian Asokarajan User-Agent: Mozilla Thunderbird 1.0.6 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Warner Losh , freebsd-drivers@freebsd.org References: <20060918.083758.63053354.imp@bsdimp.com> <20060918.105709.179960957.imp@bsdimp.com> <450FF6B2.2000908@sashi.de> <20060919.084602.71108867.imp@bsdimp.com> In-Reply-To: <20060919.084602.71108867.imp@bsdimp.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: Re: SDHCI Device Driver (first steps) X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 16:51:41 -0000 Warner Losh wrote: > It does follow the specs, as far as I can tell. It crahsed when I > tried to fdisk the device that was created... Cool, I'm gonna boot into single user to check if that happens to the Ricoh chip too. > What's expected to work? - the driver should recognize card insertion and removal - dump sdhc's register set via /dev/sdhci0 next ToDo: - read bus architecture docs - implment bus read/write routines >>if (sc->firstBARat>0x05 || sc->slots>0x50) ... > Shouldn't slots be shifted instead? Yes, first it had ((slots>>4) > 5) but then I thought, masking slots with 0x70 leaves valid lower values and an invalid higher value. So I dropped shifting to save CPU time. > pci_get_vendorid() is what I had in mind. Ok, I'll go through the code again and do some optimization. Thanks. Best Regards, Sashi From owner-freebsd-drivers@FreeBSD.ORG Tue Sep 19 17:09:22 2006 Return-Path: X-Original-To: freebsd-drivers@freebsd.org Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 484F416A40F for ; Tue, 19 Sep 2006 17:09:22 +0000 (UTC) (envelope-from bounces@nabble.com) Received: from talk.nabble.com (www.nabble.com [72.21.53.35]) by mx1.FreeBSD.org (Postfix) with ESMTP id BDEE943D5E for ; Tue, 19 Sep 2006 17:09:16 +0000 (GMT) (envelope-from bounces@nabble.com) Received: from [72.21.53.38] (helo=jubjub.nabble.com) by talk.nabble.com with esmtp (Exim 4.50) id 1GPj5w-0007y5-7F for freebsd-drivers@freebsd.org; Tue, 19 Sep 2006 10:09:16 -0700 Message-ID: <6392703.post@talk.nabble.com> Date: Tue, 19 Sep 2006 10:09:16 -0700 (PDT) From: Gireesh To: freebsd-drivers@freebsd.org In-Reply-To: <20060919.084757.78728269.imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Nabble-From: gireesh.nagabhushana@neterion.com References: <6387977.post@talk.nabble.com> <200609191346.k8JDk9b3076219@lurza.secnetix.de> <6389336.post@talk.nabble.com> <20060919.084757.78728269.imp@bsdimp.com> Subject: Re: Reading configuration file from driver during load X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Sep 2006 17:09:22 -0000 M. Warner Losh wrote: > >> Do we have any way of avoiding this? > > Yes. You can use tunables from kenv. I posted one example of how to > do this. Please let me know if you need to do this on a per-device > basis, and I'll point you at a driver that does this. > > Warner > _______________________________________________ > freebsd-drivers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-drivers > To unsubscribe, send any mail to "freebsd-drivers-unsubscribe@freebsd.org" > > Thanks Warner for the example code. That suffices my requirement. Even though, it is not required at this time, I like to know how to do that on a per-device basis. Thanks, Gireesh -- View this message in context: http://www.nabble.com/Reading-configuration-file-from-driver-during-load-tf2298986.html#a6392703 Sent from the freebsd-drivers mailing list archive at Nabble.com.