From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Denchfield Subject: Re: CF Card Adapter White List Candidate Date: Sat, 8 Jan 2011 14:18:12 -0800 (PST) Message-ID: <466091.67419.qm@web112006.mail.gq1.yahoo.com> References: <4D2840F5.10907@msgid.tls.msk.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from nm5.bullet.mail.sp2.yahoo.com ([98.139.91.75]:42537 "HELO nm5.bullet.mail.sp2.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752019Ab1AHWSN convert rfc822-to-8bit (ORCPT ); Sat, 8 Jan 2011 17:18:13 -0500 In-Reply-To: <4D2840F5.10907@msgid.tls.msk.ru> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Michael Tokarev Cc: Robert Hancock , Tejun Heo , linux-ide@vger.kernel.org Hello, Michael, this is one of the CF card adapters that has a jumper, JP1, th= at has the Pin-20 power source option as you suggest below. The factor= y default position is external power (floppy disk power plug), and the = alternative position is: "IDE Pin-20." The the settings for the three = jumpers are on the jumper's printed circuit board under the CF Card. S= orry I didn't look at the one-sheet instruction sheet that I cannot fin= d right now, but Michael's email reminded me to look under the CF Card. Tom=20 --- On Sat, 1/8/11, Michael Tokarev wrote: > From: Michael Tokarev > Subject: Re: CF Card Adapter White List Candidate > To: "Robert Hancock" > Cc: "Tom Denchfield" , "Tejun Heo" , linux-ide@vger.kernel.org > Date: Saturday, January 8, 2011, 4:48 AM > 07.01.2011 07:22, Robert Hancock > wrote: > > On Wed, Jan 5, 2011 at 11:33 PM, Tom Denchfield > wrote: > >> The reason that I mentioned powering my CF adapter > with a floppy drive power plug is that the first time I > booted after inserting the adapter, I forgot to plug the > floppy drive power plug into the adapter.=A0 The > adapter's power on LED did not light, and I think that > Ubuntu did not see the CF card. > >> > >> The reason that I mentioned the pin that was > intentionally left out of the motherboard IDE socket was > that I thought that the missing pin might have had something > to do with needing to power the adapter with the floppy > drive power plug given my experience with forgetting to plug > the floppy power plug into the adapter as mentioned in the > previous paragraph. > >> > >> The pin that is missing from the motherboard IDE > socket is very close to the middle of the IDE socket.=A0 > My guess is that the pin is in the in the range #18 to > #24.=A0 It is far away from pin #34.=A0 I am going by > memory here, but I clearly remember that the missing pin is > in the middle.=A0 Pin #34 is going into the CF card > adapter when I insert it.=A0 I do not know whether pin > #34 is grounded at the mainboard. > >=20 > > If it's pin 20, that's a key pin that's always missing > and which has > > the corresponding hole filled in on the cable side > (from compliant > > connectors, anyway), to prevent plugging in the cable > the wrong way > > around. > >=20 > > Not sure where the adapter would be potentially > drawing power from on > > the IDE connector - as far as I know there aren't any > pins on a > > standard IDE connector which provide continuous power. > The adapters > > I've seen all use an extra power connector. >=20 > The 20th pin is actually used on some VIA EPIA (mini-itx) > motherboards, > exactly for this purpose: to provide power for CF cards > like this. > Some IDE to CF adaptors can be set up (with a jumper) to > ger power > to the card from there. >=20 > /mjt >=20 =20