From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from antispam.messung.com (outbond.messung.com [210.212.173.45]) by ozlabs.org (Postfix) with ESMTP id 3B1712C01FA for ; Fri, 11 Jan 2013 18:36:33 +1100 (EST) In-Reply-To: Subject: Interrupt handler not executed From: R.Patil@mei-india.com To: linuxppc-dev@lists.ozlabs.org Message-ID: Date: Fri, 11 Jan 2013 13:06:29 +0530 Content-Type: text/plain; charset=ISO-8859-1 MIME-Version: 1.0 References: MIME-Version: 1.0 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello, We are working on board based on Freescale MPC8313ERDB. We have ported linu= x 3.0.46 kernel on it. In one of device driver written by us, we need to ta= ke some action upon asserting IRQ0 interrupt. For this we have written inte= rrupt handler which takes care of this. We are able register interrupt hand= ler successfully with the help of 'request=5Firq'. We confirmed this by che= cking respective entry in '/proc/interrupts'. We have also confirmed assert= ion of interrupt line (IRQ0) on oscilloscope. The problem is, interrupt han= dler does not execute upon asserting the interrupt line. =20 Interesting part is, we have similar requirement in other drivers but for d= ifferent interrupt lines. The interrupt handler for them executes successfu= lly. What could be the possible reasons for this behaviour (not invoking IR= Q0 interrupt handler)? If anybody could give a hint to solve or debug the p= roblem? Kind Regards, Rahul PatilEmail Disclaimer: --------------------------- This e-mail and any files transmitted with it are for the sole use of the i= ntended recipient(s) and may contain confidential and privileged informati= on. Computer viruses can be transmitted via email.The recipient should chec= k this email and any attachments for the presence of viruses. The company = accepts no liability for any damage caused by any virus transmitted by this= email.