Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756919AbXIRNYS (ORCPT ); Tue, 18 Sep 2007 09:24:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754767AbXIRNYI (ORCPT ); Tue, 18 Sep 2007 09:24:08 -0400 Received: from crawleyone.elekta.com ([193.235.128.13]:2915 "EHLO crawleyone.elekta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753753AbXIRNYH (ORCPT ); Tue, 18 Sep 2007 09:24:07 -0400 X-Greylist: delayed 374 seconds by postgrey-1.27 at vger.kernel.org; Tue, 18 Sep 2007 09:24:07 EDT Subject: PCI Interrupt To: linux-kernel@vger.kernel.org X-Mailer: Lotus Notes Release 6.5.1 January 21, 2004 Message-ID: From: Duncan.Perrett@elekta.com Date: Tue, 18 Sep 2007 14:17:32 +0100 X-MIMETrack: Serialize by Router on CrawleyOne/Servers/Elekta(Release 6.5.1|January 21, 2004) at 09/18/2007 02:24:07 PM 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 Content-Length: 1833 Lines: 45 I have a CAN PCI card installed on my Ubuntu box. I understand that PCI interrupts should be level rather than edge triggered. The output of cat /proc/interrupts is :- CPU0 0: 1614601 IO-APIC-edge timer 1: 164 IO-APIC-edge i8042 8: 3 IO-APIC-edge rtc 9: 1 IO-APIC-level acpi 12: 0 IO-APIC-edge CAN-ACx-PCI_01 14: 65786 IO-APIC-edge ide0 169: 3220 IO-APIC-level eth0, i915@pci:0000:00:02.0 177: 46459 IO-APIC-level eth1 209: 0 IO-APIC-level uhci_hcd:usb3, eth2 217: 2 IO-APIC-level uhci_hcd:usb1, ehci_hcd:usb4 225: 697 IO-APIC-level uhci_hcd:usb2 NMI: 0 LOC: 1614399 ERR: 0 MIS: 0 You see that irq 12 CAN-ACx-PCI_01 is edge triggered. Is there any way of forcing the BIOS to see the interrupt as a level-triggered one? *******************Internet Email Confidentiality Footer******************* The contents of this e-mail message (including any attachments hereto) are confidential to and are intended to be conveyed for the use of the recipient to whom it is addressed only. If you receive this transmission in error, please notify the sender of this immediately and delete the message from your system. Any distribution, reproduction or use of this message by someone other than recipient is not authorized and may be unlawful. Elekta Limited is a company registered in England and Wales whose registered number is 3244454 and whose registered address is Linac House, Fleming Way, Crawley, West Sussex, RH10 9RR - 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/