Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Apr 2001 02:14:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Apr 2001 02:14:10 -0400 Received: from fencepost.gnu.org ([199.232.76.164]:60166 "EHLO fencepost.gnu.org") by vger.kernel.org with ESMTP id ; Thu, 19 Apr 2001 02:14:05 -0400 Date: Thu, 19 Apr 2001 02:14:03 -0400 (EDT) From: Pavel Roskin X-X-Sender: To: Subject: PNP BIOS and parport_pc - dma found but not used Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello! I've compiled 2.4.3-ac9 with support for PNP BIOS. I understand that this is a new feature experimental and the feedback is requested. The setting is BIOS is to use irq 7 and dma 3. I normally use "options parport_pc io=0x378 irq=7 dma=3" in /etc/modules.conf, but this time I commented them out hoping that the driver will ask BIOS. Although the kernel can see those settings, the dma is not used by the driver. This is the output from dmesg. PnPBIOS: Parport found PNPBIOS PNP0401 at io=0378,0778 irq=7 dma=-1 0x378: FIFO is 16 bytes 0x378: writeIntrThreshold is 7 0x378: readIntrThreshold is 7 0x378: PWord is 8 bits 0x378: Interrupts are ISA-Pulses 0x378: ECP port cfgA=0x10 cfgB=0x4b 0x378: ECP settings irq=7 dma=3 parport0: PC-style at 0x378 (0x778), irq 7, using FIFO [PCSPP,TRISTATE,COMPAT,ECP] parport0: cpp_daisy: aa5500ff(98) parport0: assign_addrs: aa5500ff(98) parport0: Printer, Canon BJC-1000 # cat /proc/dma 4: cascade # cat /proc/interrupts CPU0 0: 1323677 XT-PIC timer 1: 20176 XT-PIC keyboard 2: 0 XT-PIC cascade 3: 0 XT-PIC eth1 4: 288111 XT-PIC 7: 2 XT-PIC parport0 8: 1 XT-PIC rtc 12: 41138 XT-PIC eth0 14: 22503 XT-PIC ide0 15: 0 XT-PIC ide1 NMI: 0 ERR: 0 The full output is here: http://www.red-bean.com/~proski/linux/dmesg First time parport_pc was loaded with the explicit options. -- Regards, Pavel Roskin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/