st,lps22df (on i2c bus)

Vendor: STMicroelectronics

Note

An implementation of a driver matching this compatible is available in drivers/sensor/st/lps2xdf/lps2xdf.c.

Description

STMicroelectronics LPS22DF pressure and temperature sensor connected to I2C
bus

Properties

Properties not inherited from the base binding file.

Name

Type

Details

supply-gpios

phandle-array

 
GPIO specifier that controls power to the device.

This property should be provided when the device has a dedicated
switch that controls power to the device.  The supply state is
entirely the responsibility of the device driver.

Contrast with vin-supply.

vin-supply

phandle

 
Reference to the regulator that controls power to the device.
The referenced devicetree node must have a regulator compatible.

This property should be provided when device power is supplied
by a shared regulator.  The supply state is dependent on the
request status of all devices fed by the regulator.

Contrast with supply-gpios.  If both properties are provided
then the regulator must be requested before the supply GPIOS is
set to an active state, and the supply GPIOS must be set to an
inactive state before releasing the regulator.

drdy-gpios

phandle-array

 
DRDY pin

This pin defaults to active high when produced by the sensor.
The property value should ensure the flags properly describe
the signal that is presented to the driver.

drdy-pulsed

boolean

 
Selects the pulsed mode for data-ready interrupt when enabled,
and the latched mode when disabled.

odr

int

 
Specify the output data rate expressed in samples per second (Hz).
The default is the power-on reset value.

- 0 # LPS2xDF_DT_ODR_POWER_DOWN
- 1 # LPS2xDF_DT_ODR_1HZ
- 2 # LPS2xDF_DT_ODR_4HZ
- 3 # LPS2xDF_DT_ODR_10HZ
- 4 # LPS2xDF_DT_ODR_25HZ
- 5 # LPS2xDF_DT_ODR_50HZ
- 6 # LPS2xDF_DT_ODR_75HZ
- 7 # LPS2xDF_DT_ODR_100HZ
- 8 # LPS2xDF_DT_ODR_200HZ

Legal values: 0, 1, 2, 3, 4, 5, 6, 7, 8

lpf

int

 
Specify the low pass filter value to be applied to pressure data.
The default is the power-on reset value.

- 0 # LPS2xDF_DT_LP_FILTER_OFF
- 1 # LPS2xDF_DT_LP_FILTER_ODR_4
- 3 # LPS2xDF_DT_LP_FILTER_ODR_9

Legal values: 0, 1, 3

avg

int

 
Specify the average filter value (i.e. number of samples) to be applied
to pressure and temperature data.
The default is the power-on reset value.

- 0 # LPS2xDF_DT_AVG_4_SAMPLES
- 1 # LPS2xDF_DT_AVG_8_SAMPLES
- 2 # LPS2xDF_DT_AVG_16_SAMPLES
- 3 # LPS2xDF_DT_AVG_32_SAMPLES
- 4 # LPS2xDF_DT_AVG_64_SAMPLES
- 5 # LPS2xDF_DT_AVG_128_SAMPLES
- 6 # LPS2xDF_DT_AVG_256_SAMPLES
- 7 # LPS2xDF_DT_AVG_512_SAMPLES

Legal values: 0, 1, 2, 3, 4, 5, 6, 7

friendly-name

string

 
Human readable string describing the sensor. It can be used to
distinguish multiple instances of the same model (e.g., lid accelerometer
vs. base accelerometer in a laptop) to a host operating system.

This property is defined in the Generic Sensor Property Usages of the HID
Usage Tables specification
(https://usb.org/sites/default/files/hut1_3_0.pdf, section 22.5).