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Message-ID: <54C57548.8020706@kernel.org>
Date: Sun, 25 Jan 2015 22:59:20 +0000
From: Jonathan Cameron <jic23@...nel.org>
To: Irina Tirdea <irina.tirdea@...el.com>, linux-iio@...r.kernel.org
CC: linux-kernel@...r.kernel.org, Vlad Dogaru <vlad.dogaru@...el.com>,
Daniel Baluta <daniel.baluta@...el.com>,
Hartmut Knaack <knaack.h@....de>,
Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald <pmeerw@...erw.net>
Subject: Re: [PATCH v2 02/10] iio: core: Introduce DISTANCE channel type
On 11/01/15 19:10, Irina Tirdea wrote:
> Some devices export an estimation of the distance the user has covered
> since the last reset.
>
> One of this devices is Freescale's MMA9553L
> (http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf)
> that computes the distance based on the stride length and step rate.
>
> Introduce a new channel type DISTANCE to export these values.
>
> Signed-off-by: Irina Tirdea <irina.tirdea@...el.com>
Applied to the togreg branch of iio.git - pushed out
as testing for now.
> ---
> Documentation/ABI/testing/sysfs-bus-iio | 10 ++++++++++
> drivers/iio/industrialio-core.c | 1 +
> include/linux/iio/types.h | 1 +
> 3 files changed, 12 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> index 3311886..c627a9a 100644
> --- a/Documentation/ABI/testing/sysfs-bus-iio
> +++ b/Documentation/ABI/testing/sysfs-bus-iio
> @@ -283,6 +283,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_energy_scale
> +What: /sys/bus/iio/devices/iio:deviceX/in_distance_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_magn_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
> What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
> @@ -1059,6 +1060,15 @@ Description:
> device (e.g.: human activity sensors report energy burnt by the
> user). Units after application of scale are Joules.
>
> +What: /sys/.../iio:deviceX/in_distance_input
> +What: /sys/.../iio:deviceX/in_distance_raw
> +KernelVersion: 3.20
> +Contact: linux-iio@...r.kernel.org
> +Description:
> + This attribute is used to read the distance covered by the user
> + since the last reboot while activated. Units after application
> + of scale are meters.
> +
> What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
> KernelVersion: 3.4.0
> Contact: linux-iio@...r.kernel.org
> diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
> index 8d2c9ba..655755b 100644
> --- a/drivers/iio/industrialio-core.c
> +++ b/drivers/iio/industrialio-core.c
> @@ -73,6 +73,7 @@ static const char * const iio_chan_type_name_spec[] = {
> [IIO_ACTIVITY] = "activity",
> [IIO_STEPS] = "steps",
> [IIO_ENERGY] = "energy",
> + [IIO_DISTANCE] = "distance",
> };
>
> static const char * const iio_modifier_names[] = {
> diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
> index 26b8a1c..a7de445 100644
> --- a/include/linux/iio/types.h
> +++ b/include/linux/iio/types.h
> @@ -33,6 +33,7 @@ enum iio_chan_type {
> IIO_ACTIVITY,
> IIO_STEPS,
> IIO_ENERGY,
> + IIO_DISTANCE,
> };
>
> enum iio_modifier {
>
--
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