From mboxrd@z Thu Jan 1 00:00:00 1970 From: lirc@bartelmus.de (Christoph Bartelmus) Subject: Re: [RFC] What are the goals for the architecture of an in-kernel IR system? Date: 06 Dec 2009 12:59:00 +0100 Message-ID: References: <20091206065512.GA14651@core.coreip.homeip.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Return-path: Received: from moutng.kundenserver.de ([212.227.126.171]:56041 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751663AbZLFMC0 (ORCPT ); Sun, 6 Dec 2009 07:02:26 -0500 In-Reply-To: <20091206065512.GA14651@core.coreip.homeip.net> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: dmitry.torokhov@gmail.com Cc: awalls@radix.net, hermann-pitton@arcor.de, j@jannau.net, jarod@redhat.com, jarod@wilsonet.com, jonsmirl@gmail.com, khc@pm.waw.pl, kraxel@redhat.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@redhat.com, superm1@ubuntu.com Hi Dmitry, on 05 Dec 09 at 22:55, Dmitry Torokhov wrote: [...] > I do not believe you are being realistic. Sometimes we just need to say > that the device is a POS and is just not worth it. Remember, there is > still "lirc hole" for the hard core people still using solder to produce > something out of the spare electronic components that may be made to > work (never mind that it causes the CPU constantly poll the device, not > letting it sleep and wasting electricity as a result - just hypotetical > example here). The still seems to be is a persistent misconception that the home-brewn receivers need polling or cause heavy CPU load. No they don't. All of them are IRQ based. It's the commercial solutions like gpio based IR that need polling. For transmitters it's a different story, but you don't transmit 24h/7. Christoph