From 94a39f2c443b3fc5efe31a68502991020eefa3d2 Mon Sep 17 00:00:00 2001 From: Ramona Bolboaca Date: Tue, 8 Aug 2023 10:50:58 +0300 Subject: iio: Add IIO_DELTA_VELOCITY channel type The delta velocity is defined as a piece-wise integration of acceleration data. The delta velocity represents the linear velocity change between two consecutive measurements and it is measured in m / s (meters per second). In order to track the total linear velocity change during a desired period of time, simply sum-up the delta velocity samples acquired during that time. IIO currently does not offer a suitable channel type for this type of measurements hence this patch adds it. Signed-off-by: Ramona Bolboaca Reviewed-by: Nuno Sa Link: https://lore.kernel.org/r/20230808075059.645525-3-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'Documentation/ABI/testing/sysfs-bus-iio') diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 363dd4b09930..59968b745518 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -293,6 +293,21 @@ Description: angle samples acquired during that time. Units after application of scale and offset are radians. +What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_x_raw +What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_y_raw +What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_z_raw +KernelVersion: 6.5 +Contact: linux-iio@vger.kernel.org +Description: + The linear velocity change between two consecutive samples on x, + y or z (may be arbitrarily assigned but should match other such + assignments on device). + In order to compute the total linear velocity change during a + desired period of time, the application should sum-up the delta + velocity samples acquired during that time. + Units after application of scale and offset are meters per + second. + What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw What: /sys/bus/iio/devices/iio:deviceX/in_anglY_raw KernelVersion: 4.17 @@ -476,6 +491,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale What: /sys/bus/iio/devices/iio:deviceX/in_deltaangl_scale +What: /sys/bus/iio/devices/iio:deviceX/in_deltavelocity_scale What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale What: /sys/bus/iio/devices/iio:deviceX/in_intensity_x_scale What: /sys/bus/iio/devices/iio:deviceX/in_intensity_y_scale @@ -1350,6 +1366,9 @@ What: /sys/.../iio:deviceX/bufferY/in_accel_z_en What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_en What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_en What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_en +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_en +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_en +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_en What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_en What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_en What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_en @@ -1381,6 +1400,7 @@ Description: What: /sys/.../iio:deviceX/bufferY/in_accel_type What: /sys/.../iio:deviceX/bufferY/in_deltaangl_type +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_type What: /sys/.../iio:deviceX/bufferY/in_anglvel_type What: /sys/.../iio:deviceX/bufferY/in_magn_type What: /sys/.../iio:deviceX/bufferY/in_incli_type @@ -1438,6 +1458,9 @@ What: /sys/.../iio:deviceX/bufferY/in_accel_z_index What: /sys/.../iio:deviceX/bufferY/in_deltaangl_x_index What: /sys/.../iio:deviceX/bufferY/in_deltaangl_y_index What: /sys/.../iio:deviceX/bufferY/in_deltaangl_z_index +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_x_index +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_y_index +What: /sys/.../iio:deviceX/bufferY/in_deltavelocity_z_index What: /sys/.../iio:deviceX/bufferY/in_anglvel_x_index What: /sys/.../iio:deviceX/bufferY/in_anglvel_y_index What: /sys/.../iio:deviceX/bufferY/in_anglvel_z_index -- cgit v1.2.3-70-g09d2