iio: core: Introduce IIO_CHAN_INFO_CALIBHEIGHT
Some devices need the height of the user to compute various
parameters. One of this devices is Freescale's MMA9553L
(http://www.freescale.com/files/sensors/doc/ref_manual/MMA9553LSWRM.pdf)
that needs the height of the user to compute the stride length which
is used further to determine distance, speed and activity type.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@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 c60b0a1..4a9e29a 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -323,6 +323,14 @@
production inaccuracies). If shared across all channels,
<type>_calibscale is used.
+What: /sys/bus/iio/devices/iio:deviceX/in_steps_calibheight
+KernelVersion: 3.19
+Contact: linux-iio@vger.kernel.org
+Description:
+ Height of the user (in centimeters) used by some pedometers
+ to compute the stride length, distance, speed and activity
+ type.
+
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 1e060f3..45bb3a4 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -120,6 +120,7 @@
[IIO_CHAN_INFO_HYSTERESIS] = "hysteresis",
[IIO_CHAN_INFO_INT_TIME] = "integration_time",
[IIO_CHAN_INFO_ENABLE] = "en",
+ [IIO_CHAN_INFO_CALIBHEIGHT] = "calibheight",
};
/**
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index f45a400..878d861 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -39,6 +39,7 @@
IIO_CHAN_INFO_HYSTERESIS,
IIO_CHAN_INFO_INT_TIME,
IIO_CHAN_INFO_ENABLE,
+ IIO_CHAN_INFO_CALIBHEIGHT,
};
enum iio_shared_by {