From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Denchfield Subject: Re: CF Card Adapter White List Candidate Date: Wed, 5 Jan 2011 10:18:55 -0800 (PST) Message-ID: <369064.19710.qm@web112003.mail.gq1.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from nm12-vm0.bullet.mail.sp2.yahoo.com ([98.139.91.242]:36713 "HELO nm12-vm0.bullet.mail.sp2.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751211Ab1AESS4 convert rfc822-to-8bit (ORCPT ); Wed, 5 Jan 2011 13:18:56 -0500 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: Robert Hancock , linux-ide@vger.kernel.org Hello, Tejun, this CF card adapter plugs directly into an IDE socket (Channel = 0, in my case) on a desktop computer motherboard.=A0 You can see a pict= ure of the adapter in the following URL01: URL01: http://preview.tinyurl.com/233u92u I have to power the adapter with a floppy drive power plug because my m= otherboard's IDE sockets were intentionally manufactured without the pi= n that could have supplied power through an IDE cable. Does anyone have a top of the head opinion as to whether there are inhe= rent usage limitations in either this passive CF card adapter and/or in= the Linux kernel used with Ubuntu v10.10 that would prevent users with= CF cards faster than UDMA/66 (see URL02 below) from being configured b= y Linux to work at speeds above UDMA/66? The reason that I ask this qu= estion is that I bought both my UDMA/66 CF card and the adapter from th= e URL01 seller.=A0 It is foreseeable that a lot of customers might have= purchased faster CF cards envisioning that they would work at speeds h= igher than UDMA/66 with the adapter.=A0 The 'Technical Details' section= of URL01 does not state anything about UDMA speed usage limitations.=20 URL02: http://www.hjreggel.net/cardspeed/index.html I think that there are CF card adapters on eBay that are similar to the= one pictured in URL01 above, and there are also IDE adapters that will= hold two CF cards. Tom --- On Wed, 1/5/11, Tejun Heo wrote: > From: Tejun Heo > Subject: Re: CF Card Adapter White List Candidate > To: "Robert Hancock" > Cc: "Tom Denchfield" , linux-ide@vger.kernel= =2Eorg > Date: Wednesday, January 5, 2011, 5:51 AM > Hello, >=20 > On Tue, Jan 04, 2011 at 10:19:17PM -0600, Robert Hancock > wrote: > > On 01/04/2011 04:18 PM, Tom Denchfield wrote: > >> As you further recommended, in an attempt to get > the SD-CF-IDE-DI > >> IDE to CF Adapter that holds my CF card white > listed, I am > >> submitting the attached > >> > libata_force_80c_CF_card_adapter_whitelist_candidate_information.txt > >> file that has the output from executing four > terminal commands to > >> hopefully supply enough information to get it > whitelisted. >=20 > Thanks. >=20 > >> Although I expect that my RV280 Radeon 9200 Pro > video card is too > >> old to expend much effort on, it would be nice to > also get it > >> whitelisted so that future newbie Linux users who > do not know about > >> using the radeon.modeset=3D0 parameter on the kernel > command line > >> will not be looking at a black screen with a > blinking cursor when > >> they attempt to use a LiveCD for troubleshooting, > or whatever. > >> > >> I purposely did not include the URL of one of the > Internet sites > >> that sells the adapter in this email in case this > is a no no. >=20 > I don't think that's a no no unless the intention is > commercial. >=20 > >> Tejun, I am not sure that I will have either the > time or the > >> interest to learn the intricacies of editing > >> http://www.thinkwiki.org/wiki/Compact_Flash_boot_drive > to add > >> libata.force=3D80c to this site in lieu of > force_cbl=3D80: so that > >> fewer people will be asking you questions.=A0 I > have a ThinkPad > >> without a HDD plus a laptop adapter that will hold > my CF card, but > >> my Think Pad is a lot older than the ones > discussed on > >> Compact_Flash_boot_drive.=A0 In addition, I did > not see any recent > >> updates to this Internet page, but maybe I can > find someone to > >> email who will update this page. >=20 > Yeah, just ping someone. >=20 > > Is there actually any way to identify the adapter > automatically? > > AFAIK, these CF-IDE adapters are just passive > circuitry and there's > > no way to identify them through software. >=20 > Hmmm... I was thinking this was somehing integrated to the > machine (so > the dmidecode), in which case we can combine dmi + pci > function # + > port # to whitelist the device, which we already do for > some type of > quirks.=A0 If it's a plug in device, we obviously can't > identify it. > Tom, is the CF slot integrated to the machine or is it > something you > put into the PCMCIA slot? >=20 > Thanks. >=20 > --=20 > tejun > =20