From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: 40-wire/80-wire detection Date: Thu, 12 Jul 2007 17:28:41 -0400 Message-ID: <46969D09.4010607@garzik.org> References: <527770.57572.qm@web58107.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:56509 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933758AbXGLV2n (ORCPT ); Thu, 12 Jul 2007 17:28:43 -0400 In-Reply-To: <527770.57572.qm@web58107.mail.re3.yahoo.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Craig Block Cc: linux-ide@vger.kernel.org Craig Block wrote: > Linux kernel: version 2.6.22.1 > Chipset: VIA VT8363 + VT82C686A > Hard drives: Quantum Fireball LCT10 (UDMA66) > > I'm having a problem with the 80-wire/40-wire cable detection in the > ata driver. Even when I configure the kernel with IDEDMA_IVB set, I > still get the 40-wire speed downgrade on hda. > > Why did you guys put that 80-wire/40-wire cable detection in the ata > driver anyway? Since when is it your job to police me in making sure > I'm using the correct cable on my drives. If you signal a 40-wire cable too fast, you get trouble with a capital T. Jeff