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iio: core: Introduce ENERGY channel type

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Human activity sensors report the energy burnt by the user.
One of this devices is Freescale's MMA9553L
(http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf)
that computes the number of calories based on weight and step rate.

Introduce a new channel type ENERGY to export these values.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Irina Tirdea 2015-01-11 21:10:07 +02:00 committed by Jonathan Cameron
parent 9d9f780000
commit 72c6664467
3 changed files with 12 additions and 0 deletions
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10
Documentation/ABI/testing/sysfs-bus-iio
View file

@ -282,6 +282,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_current_scale
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_magn_scale
What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale
What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale
@ -1049,6 +1050,15 @@ Description:
For a list of available output power modes read
in_accel_power_mode_available.
What: /sys/.../iio:deviceX/in_energy_input
What: /sys/.../iio:deviceX/in_energy_raw
KernelVersion: 3.20
Contact: linux-iio@vger.kernel.org
Description:
This attribute is used to read the energy value reported by the
device (e.g.: human activity sensors report energy burnt by the
user). Units after application of scale are Joules.
What: /sys/bus/iio/devices/iio:deviceX/store_eeprom
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org

1
drivers/iio/industrialio-core.c
View file

@ -72,6 +72,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_HUMIDITYRELATIVE] = "humidityrelative",
[IIO_ACTIVITY] = "activity",
[IIO_STEPS] = "steps",
[IIO_ENERGY] = "energy",
};
static const char * const iio_modifier_names[] = {

1
include/linux/iio/types.h
View file

@ -32,6 +32,7 @@ enum iio_chan_type {
IIO_HUMIDITYRELATIVE,
IIO_ACTIVITY,
IIO_STEPS,
IIO_ENERGY,
};
enum iio_modifier {