iio: core: Introduce IIO_CHAN_INFO_CALIBWEIGHT
Some devices need the weight of the user to compute other
parameters. One of this devices is Freescale's MMA9553L
(http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf)
that needs the weight of the user to compute the number of calories burnt.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 80b5efb1..71dc8db 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -351,6 +351,13 @@
to compute the stride length, distance, speed and activity
type.
+What: /sys/bus/iio/devices/iio:deviceX/in_energy_calibweight
+KernelVersion: 3.20
+Contact: linux-iio@vger.kernel.org
+Description:
+ Weight of the user (in kg). It is needed by some pedometers
+ to compute the calories burnt by the user.
+
What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
What: /sys/.../iio:deviceX/in_voltageX_scale_available
What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 18a8ab9..4ee6fdf 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -125,6 +125,7 @@
[IIO_CHAN_INFO_INT_TIME] = "integration_time",
[IIO_CHAN_INFO_ENABLE] = "en",
[IIO_CHAN_INFO_CALIBHEIGHT] = "calibheight",
+ [IIO_CHAN_INFO_CALIBWEIGHT] = "calibweight",
};
/**
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 5902020..51f1643 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -40,6 +40,7 @@
IIO_CHAN_INFO_INT_TIME,
IIO_CHAN_INFO_ENABLE,
IIO_CHAN_INFO_CALIBHEIGHT,
+ IIO_CHAN_INFO_CALIBWEIGHT,
};
enum iio_shared_by {
