From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Brownell Subject: Re: Threaded interrupts for synaptic touchscreen in HTC dream Date: Wed, 22 Jul 2009 10:41:18 -0700 Message-ID: <200907221041.19027.david-b@pacbell.net> References: <20090714100634.GA4054@elf.ucw.cz> <20090721160436.GD4352@dtor-d630.eng.vmware.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from n18.bullet.mail.mud.yahoo.com ([68.142.206.145]:36087 "HELO n18.bullet.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754069AbZGVRlT (ORCPT ); Wed, 22 Jul 2009 13:41:19 -0400 In-Reply-To: Content-Disposition: inline Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Thomas Gleixner Cc: Dmitry Torokhov , Mark Brown , Trilok Soni , Pavel Machek , Arve Hj?nnev?g , kernel list , Brian Swetland , linux-input@vger.kernel.org, Andrew Morton , linux-i2c@vger.kernel.org, Joonyoung Shim , m.szyprowski@samsung.com, t.fujak@samsung.com, kyungmin.park@samsung.com, Peter Zijlstra On Tuesday 21 July 2009, Thomas Gleixner wrote: > > > - Multi-function devices like the twl4030 which have an interrupt > > > controller on them and would like to expose that interrupt controller > > > via the generic IRQ subsystem. This was a large part of the > > > discussion in the thread above is a much trickier problem. > > Why ? Because the current threaded IRQ framework stops short of supporting the relevant IRQ chaining mechanisms. It handles the first level IRQ. Not the second or third level which needs to be dispatched from that one. - Dave