From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756598AbYIRR5l (ORCPT ); Thu, 18 Sep 2008 13:57:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755525AbYIRR5c (ORCPT ); Thu, 18 Sep 2008 13:57:32 -0400 Received: from rv-out-0506.google.com ([209.85.198.233]:20224 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754325AbYIRR5b (ORCPT ); Thu, 18 Sep 2008 13:57:31 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type :content-transfer-encoding:content-disposition; b=a8RU/sTMPw8oxcHlt4ZgHy/KtYqxEu+y4Kt6Y2HUtxg5XUf0trBhz7q6Fpoe7NuBGl +krgxFFwj7HvLpWioOkh8EPP0Figkztah/O7faJbSd0+pggKo3G4VmYxfwtVCOkvSRTt z+fk6r63Jsqsd0ECUvWgo1rIoJuCsNVmKz3fQ= Message-ID: <3baf3d760809181057o5810f975w15647878a3033b30@mail.gmail.com> Date: Thu, 18 Sep 2008 23:27:30 +0530 From: "Singaravelan Nallasellan" To: linux-kernel@vger.kernel.org Subject: Interrupt Handler Invocation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I am currently assuming that the ISR will be invoked repeatedly till the ISR says the IRQ is handled. Is it a valid assumption? Can somebody throw some light on whether ISR is invoked repeatedly when the ISR returns the IRQ is not handled? What is the behaviour for edge or level triggered interrupts?