From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265499AbTFRTOJ (ORCPT ); Wed, 18 Jun 2003 15:14:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265501AbTFRTOJ (ORCPT ); Wed, 18 Jun 2003 15:14:09 -0400 Received: from hueytecuilhuitl.mtu.ru ([195.34.32.123]:64266 "EHLO hueymiccailhuitl.mtu.ru") by vger.kernel.org with ESMTP id S265499AbTFRTOF (ORCPT ); Wed, 18 Jun 2003 15:14:05 -0400 From: Andrey Borzenkov To: linux-kernel@vger.kernel.org Subject: parport_pc does not enable DMA by default (both 2.5.72 and 2.4.21) Date: Wed, 18 Jun 2003 23:26:54 +0400 User-Agent: KMail/1.5 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200306182326.54918.arvidjaar@mail.ru> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I have CUSL2 motherboard (i815e based) that allows to select different parallel port modes; for ECP or ECP+EPP I also can choose DMA channel. Neither 2.4.21 nor 2.5.72 would enable DMA by default. I have (currently ECP but the same for ECP_EPP) parport0: PC-style at 0x378 (0x778), irq 7, using FIFO [PCSPP,TRISTATE,COMPAT,ECP] parport0: cpp_daisy: aa5500ff(38) parport0: assign_addrs: aa5500ff(38) parport0: cpp_daisy: aa5500ff(38) parport0: assign_addrs: aa5500ff(38) and as options {pts/1}% grep parport /etc/modprobe.conf options parport_pc irq=auto dma=auto IRQ is correctly autodeteted and it appears it is also correctly configured in BIOS: {pts/1}% cat /sys/devices/pnp0/00:01/name ECP printer port {pts/1}% cat /sys/devices/pnp0/00:01/resources mode = auto state = active io 0x378-0x37f io 0x778-0x77f irq 7 dma 3 Is it expected? Any additional info I can provide? TIA -andrey