linux/Documentation/hwmon/sht4x.rst

.. SPDX-License-Identifier: GPL-2.0

Kernel driver sht4x
===================

Supported Chips:

  * Sensirion SHT4X

    Prefix: 'sht4x'

    Addresses scanned: None

    Datasheet:

      English: https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT4x_Datasheet.pdf

Author: Navin Sankar Velliangiri <navin@linumiz.com>


Description
-----------

This driver implements support for the Sensirion SHT4x chip, a humidity
and temperature sensor. Temperature is measured in degree celsius, relative
humidity is expressed as a percentage. In sysfs interface, all values are
scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500.

Usage Notes
-----------

The device communicates with the I2C protocol. Sensors can have the I2C
address 0x44. See Documentation/i2c/instantiating-devices.rst for methods
to instantiate the device.

Sysfs entries
-------------

=============== ============================================
temp1_input     Measured temperature in millidegrees Celcius
humidity1_input Measured humidity in %H
update_interval The minimum interval for polling the sensor,
                in milliseconds. Writable. Must be at least
                2000.
=============== ============================================