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iio: add modifiers for linear acceleration

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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 <andrea.merello@iit.it>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220907132205.28021-2-andrea.merello@iit.it
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andrea Merello 2022-09-07 15:21:52 +02:00 committed by Jonathan Cameron
parent 7b4ab4abce
commit bcc57a48ea
2 changed files with 6 additions and 1 deletions
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3
drivers/iio/industrialio-core.c
View File

@ -134,6 +134,9 @@ static const char * const iio_modifier_names[] = {
[IIO_MOD_ETHANOL] = "ethanol", [IIO_MOD_ETHANOL] = "ethanol",
[IIO_MOD_H2] = "h2", [IIO_MOD_H2] = "h2",
[IIO_MOD_O2] = "o2", [IIO_MOD_O2] = "o2",
[IIO_MOD_LINEAR_X] = "linear_x",
[IIO_MOD_LINEAR_Y] = "linear_y",
[IIO_MOD_LINEAR_Z] = "linear_z",
}; };
/* relies on pairs of these shared then separate */ /* relies on pairs of these shared then separate */

4
include/uapi/linux/iio/types.h
View File

@ -95,6 +95,9 @@ enum iio_modifier {
IIO_MOD_ETHANOL, IIO_MOD_ETHANOL,
IIO_MOD_H2, IIO_MOD_H2,
IIO_MOD_O2, IIO_MOD_O2,
IIO_MOD_LINEAR_X,
IIO_MOD_LINEAR_Y,
IIO_MOD_LINEAR_Z,
}; };
enum iio_event_type { enum iio_event_type {
@ -118,4 +121,3 @@ enum iio_event_direction {
}; };
#endif /* _UAPI_IIO_TYPES_H_ */ #endif /* _UAPI_IIO_TYPES_H_ */