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Subject[PATCH v2 01/10] iio: core: Introduce ENERGY channel type
Date
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>
---
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 831db86..3311886 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -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
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 69feb91..8d2c9ba 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -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[] = {
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 904dcbb..26b8a1c 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -32,6 +32,7 @@ enum iio_chan_type {
IIO_HUMIDITYRELATIVE,
IIO_ACTIVITY,
IIO_STEPS,
+ IIO_ENERGY,
};

enum iio_modifier {
--
1.9.1


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