From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751734AbZKLHp1 (ORCPT ); Thu, 12 Nov 2009 02:45:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751691AbZKLHpY (ORCPT ); Thu, 12 Nov 2009 02:45:24 -0500 Received: from smtp.nokia.com ([192.100.122.233]:33726 "EHLO mgw-mx06.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751681AbZKLHpV (ORCPT ); Thu, 12 Nov 2009 02:45:21 -0500 From: Samu Onkalo To: linux-input@vger.kernel.org, lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org Cc: Samu Onkalo Subject: [RFC PATCH 0/1] Driver for ami305 magnetometer Date: Thu, 12 Nov 2009 09:44:25 +0200 Message-Id: <1258011866-25972-1-git-send-email-samu.p.onkalo@nokia.com> X-Mailer: git-send-email 1.5.6.3 X-OriginalArrivalTime: 12 Nov 2009 07:44:30.0522 (UTC) FILETIME=[F7E6A9A0:01CA636B] X-Nokia-AV: Clean Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch provides driver for two sw compatible 3 axis magnetometer chips (AMI305 / AK8974). Driver provides coordinates as polled input device. Chip can provide interrupt when the measurement result is ready, but this feature is not used. Instead, new measurement is started at polling event frequency. This method allows more flexible measurement interval. Activity level at kernel side is about the same in both interrupt and polling based methods. Furhtermore, this eliminate need to use interrupt line at HW level. Chip is powered on when the polled device is opened and powered down when the device is closed. Axes can be remapped via platform data. sysfs interface: selftest - Perform chip specific selftest as specified by manufacturer active - returns chip power state: ON or OFF fuzz - adjust input system "fuzziness" parameter Patch is applicable to Dmitry Torokhov's input tree - next branch. This tree was selected since patch requires a change to polled input device which is allready in that tree (open / close methods). Samu Onkalo (1): AMI305 magnetometer driver drivers/misc/Kconfig | 11 + drivers/misc/Makefile | 1 + drivers/misc/ami305.c | 644 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/i2c/ami305.h | 22 ++ 4 files changed, 678 insertions(+), 0 deletions(-) create mode 100644 drivers/misc/ami305.c create mode 100644 include/linux/i2c/ami305.h