From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752814AbaLSWaM (ORCPT ); Fri, 19 Dec 2014 17:30:12 -0500 Received: from mga01.intel.com ([192.55.52.88]:23079 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752651AbaLSWaJ (ORCPT ); Fri, 19 Dec 2014 17:30:09 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,609,1413270000"; d="scan'208";a="650701898" From: Irina Tirdea To: Jonathan Cameron , linux-iio@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Vlad Dogaru , Daniel Baluta , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald , Irina Tirdea Subject: [PATCH 3/8] iio: core: Introduce SPEED channel type Date: Sat, 20 Dec 2014 00:57:54 +0200 Message-Id: <1419029879-12024-4-git-send-email-irina.tirdea@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1419029879-12024-1-git-send-email-irina.tirdea@intel.com> References: <1419029879-12024-1-git-send-email-irina.tirdea@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some devices export the current speed value of the user. One of this devices is Freescale's MMA9553L (http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf) that computes the speed of the user based on the number of steps and stride length. Introduce a new channel type SPEED to export these values. Signed-off-by: Irina Tirdea --- Documentation/ABI/testing/sysfs-bus-iio | 9 +++++++++ drivers/iio/industrialio-core.c | 1 + include/linux/iio/types.h | 1 + 3 files changed, 11 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index a5c1dcc..07acef7 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -295,6 +295,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_rot_from_north_true_tilt_comp_scale What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale +What: /sys/bus/iio/devices/iio:deviceX/in_speed_scale KernelVersion: 2.6.35 Contact: linux-iio@vger.kernel.org Description: @@ -1146,6 +1147,14 @@ Description: present, output should be considered as processed with the unit in milliamps. +What: /sys/.../iio:deviceX/in_speed_input +What: /sys/.../iio:deviceX/in_speed_raw +KernelVersion: 3.19 +Contact: linux-iio@vger.kernel.org +Description: + This attribute is used to read the current speed value of the user. + Units after application of scale are m/s. + What: /sys/.../iio:deviceX/in_steps_en KernelVersion: 3.19 Contact: linux-iio@vger.kernel.org diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 4a10d31..5e50aca 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -74,6 +74,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_STEPS] = "steps", [IIO_CALORIES] = "calories", [IIO_DISTANCE] = "distance", + [IIO_SPEED] = "speed", }; static const char * const iio_modifier_names[] = { diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h index b98f751..c848f45 100644 --- a/include/linux/iio/types.h +++ b/include/linux/iio/types.h @@ -34,6 +34,7 @@ enum iio_chan_type { IIO_STEPS, IIO_CALORIES, IIO_DISTANCE, + IIO_SPEED, }; enum iio_modifier { -- 1.7.9.5