Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 11 Dec 2002 03:42:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 11 Dec 2002 03:42:39 -0500 Received: from 213-187-164-3.dd.nextgentel.com ([213.187.164.3]:21993 "EHLO mail.pronto.tv") by vger.kernel.org with ESMTP id ; Wed, 11 Dec 2002 03:42:24 -0500 From: Roy Sigurd Karlsbakk Organization: ProntoTV AS To: Kernel mailing list Subject: No automatic DMA with VIA chipset + CDROM on recent kernels Date: Wed, 11 Dec 2002 09:50:06 +0100 User-Agent: KMail/1.4.1 MIME-Version: 1.0 Content-Type: Multipart/Mixed; boundary="------------Boundary-00=_IV5YKZ6UW8ECJPU4QQF4" Message-Id: <200212110950.06251.roy@karlsbakk.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 27630 Lines: 1134 --------------Boundary-00=_IV5YKZ6UW8ECJPU4QQF4 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable hi With the VIA IDE chipset listed below, DMA is off by default on my DVD-RO= M and=20 CD burner attached to the secondary channel (as hd[cd]) on recent kernels= =2E=20 DMA works fine after an "echo using_dma:1 > /proc/ide/hd[cd]/settings The .config is attached. This has been tested up to 2.4.20-rc1. I haven't= =20 tried .20 final, as I couldn't find anything related in the changelog.=20 roy (from lspci -vvvvv) 00:11.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) (pr= og-if=20 8a [Master SecP PriP]) Subsystem: Asustek Computer, Inc.: Unknown device 808c Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParEr= r-=20 Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=3Dmedium >TAbort= -=20 SERR-