lkml.org 
[lkml]   [2014]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 5/7] iio: core: Introduce IIO_CHAN_INFO_CALIBHEIGHT
Date
From: Irina Tirdea <irina.tirdea@intel.com>

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>
---
Documentation/ABI/testing/sysfs-bus-iio | 8 ++++++++
drivers/iio/industrialio-core.c | 1 +
include/linux/iio/iio.h | 1 +
3 files changed, 10 insertions(+)

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 @@ Description:
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 @@ static const char * const iio_chan_info_postfix[] = {
[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 @@ enum iio_chan_info_enum {
IIO_CHAN_INFO_HYSTERESIS,
IIO_CHAN_INFO_INT_TIME,
IIO_CHAN_INFO_ENABLE,
+ IIO_CHAN_INFO_CALIBHEIGHT,
};

enum iio_shared_by {
--
1.9.1


\
 
 \ /
  Last update: 2014-11-10 14:21    [W:0.076 / U:1.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site