From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932450AbWFSOVT (ORCPT ); Mon, 19 Jun 2006 10:21:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932463AbWFSOVT (ORCPT ); Mon, 19 Jun 2006 10:21:19 -0400 Received: from ik55118.ikexpress.com ([213.246.55.118]:59614 "EHLO ik55118.ikexpress.com") by vger.kernel.org with ESMTP id S932450AbWFSOVT (ORCPT ); Mon, 19 Jun 2006 10:21:19 -0400 Message-ID: <4496B2D0.3070405@free-electrons.com> Date: Mon, 19 Jun 2006 16:21:04 +0200 From: Michael Opdenacker User-Agent: Thunderbird 1.5.0.4 (X11/20060614) MIME-Version: 1.0 To: ~ ninad Cc: linux-kernel@vger.kernel.org Subject: Re: irq References: <1150723865.976316.296170@f6g2000cwb.googlegroups.com> In-Reply-To: <1150723865.976316.296170@f6g2000cwb.googlegroups.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, > In linux device driver, is it possible to register an ISR for multiple > irq lines? > Yes, use request_irq with the same handler for each of your irq lines. You couldn't easily do this at once in a single request_xxx instruction, because registration may succeed on some lines, but fail on some others ones. The registration status would then be more difficult to manage. Michael. -- Michael Opdenacker, Free Electrons Free Embedded Linux Training Materials on http://free-electrons.com/training (More than 1000 pages!)