From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Ross Subject: Re: [PATCH 1/2] input: Pegatron Lucid accelerometer Date: Tue, 18 Jan 2011 09:21:31 -0800 Message-ID: <4D35CC1B.3020808@windriver.com> References: <1295287011-12849-1-git-send-email-andy.ross@windriver.com> <1295287011-12849-2-git-send-email-andy.ross@windriver.com> <4D3529A1.1030804@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from li44-10.members.linode.com ([72.14.181.10]:55127 "EHLO plausible.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752397Ab1ARRVe (ORCPT ); Tue, 18 Jan 2011 12:21:34 -0500 In-Reply-To: <4D3529A1.1030804@ti.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Shubhrajyoti Cc: Dmitry Torokhov , Corentin Chary , linux-input@vger.kernel.org, acpi4asus-user@lists.sourceforge.net, platform-driver-x86@vger.kernel.org On 01/17/2011 09:48 PM, Shubhrajyoti wrote: > Could you explain why a polling is needed. Is no irq line connected. It's just an ACPI method interface, so no dedicated IRQ certainly. The firmware does issue ACPI events on coarse orientation changes (i.e. which edge is up) that we're catching with acpid, so there's no reason this needs to poll all the time in typical usage. Andy