linux-toradex.git/include/uapi/linux/iio, branch v6.8-rc3

iio: add modifiers for A and B ultraviolet light

2023-12-04T13:57:24+00:00

Currently there are only two modifiers for ultraviolet light: a generic
one for any ultraviolet light (IIO_MOD_LIGHT_UV) and one for deep
ultraviolet (IIO_MOD_LIGHT_DUV), which is also referred as ultraviolet
C (UV-C) band and covers short-wave ultraviolet.

There are still no modifiers for the long-wave and medium-wave
ultraviolet bands. These two bands are the main components used to
obtain the UV index on the Earth's surface.

Add modifiers for the ultraviolet A (UV-A) and ultraviolet B (UV-B)
bands.

Signed-off-by: Javier Carrasco 
Link: https://lore.kernel.org/r/20231110-veml6075-v3-1-6ee46775b422@gmail.com
Signed-off-by: Jonathan Cameron

Merge branch 'ib-iio-hid-sensors-v6.6-rc1' into togreg

2023-09-24T12:39:25+00:00

The deta angle and deta velocity channels were added in parallel with
color temperature and chromacity so this merge had to assign a
consistent order. I put the color related ones second.

Signed-off-by: Jonathan Cameron

iio: Add channel type for chromaticity

2023-09-24T12:31:31+00:00

In most cases, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram. Thus, add channel type for chromaticity.

Signed-off-by: Basavaraj Natikar 
Link: https://lore.kernel.org/r/20230919081054.2050714-7-Basavaraj.Natikar@amd.com
Signed-off-by: Jonathan Cameron

iio: Add channel type light color temperature

2023-09-24T12:22:52+00:00

In most cases, ambient color sensors also support light color
temperature, which is measured in kelvin. Thus, add channel type light
color temperature.

Signed-off-by: Basavaraj Natikar 
Link: https://lore.kernel.org/r/20230919081054.2050714-3-Basavaraj.Natikar@amd.com
Signed-off-by: Jonathan Cameron

iio: Add IIO_DELTA_VELOCITY channel type

2023-09-12T09:42:03+00:00

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

iio: Add IIO_DELTA_ANGL channel type

2023-09-12T09:42:03+00:00

The delta angle is defined as a piece-wise integration of angular
velocity data. The delta angle represents the amount of
angular displacement between two consecutive measurements and it
is measured in radians.

In order to track the total angular displacement during a desired
period of time, simply sum-up the delta angle 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/20230808075059.645525-2-ramona.bolboaca@analog.com
Signed-off-by: Jonathan Cameron

iio: add modifers for pitch, yaw, roll

2022-09-21T17:42:55+00:00

Add modifiers for reporting rotations as euler angles (i.e. yaw, pitch and
roll).

Signed-off-by: Andrea Merello 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20220907132205.28021-5-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron

iio: add modifiers for linear acceleration

2022-09-21T17:42:55+00:00

Add IIO_MOD_LINEAR_X, IIO_MOD_LINEAR_Y and IIO_MOD_LINEAR_Z modifiers to te
IIO core, which is preparatory for adding the Bosch BNO055 IMU driver.

Bosch BNO055 IMU can report raw accelerations (among x, y and z axis) as
well as the so called "linear accelerations" (again, among x, y and z axis)
which is basically the acceleration after subtracting gravity and for which
those new modifiers are for.

Signed-off-by: Andrea Merello 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20220907132205.28021-2-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron

iio: Add new event type gesture and use direction for single and double tap

2022-09-05T17:08:42+00:00

Add new event type for tap called gesture and the direction can be used
to differentiate single and double tap. This may be used by accelerometer
sensors to express single and double tap events. For directional tap,
modifiers like IIO_MOD_(X/Y/Z) can be used along with singletap and
doubletap direction.

Signed-off-by: Jagath Jog J 
Link: https://lore.kernel.org/r/20220831063117.4141-2-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron

iio: introduce mag_referenced

2022-02-21T19:33:05+00:00

Some accelerometers that support activity and inactivity
events also support a referenced mode, in which the
gravitational acceleration is taken as a point of
reference before comparing the acceleration to the
specified activity and inactivity magnitude.

For example, in the case of the ADXL367, for activity
detection, the formula is:

abs(acceleration - reference) > magnitude

Add a new event type that makes this behavior clear.

Signed-off-by: Cosmin Tanislav 
Link: https://lore.kernel.org/r/20220214073810.781016-2-cosmin.tanislav@analog.com
Signed-off-by: Jonathan Cameron