0001 .. SPDX-License-Identifier: GPL-2.0
0002
0003 Kernel driver sht4x
0004 ===================
0005
0006 Supported Chips:
0007
0008 * Sensirion SHT4X
0009
0010 Prefix: 'sht4x'
0011
0012 Addresses scanned: None
0013
0014 Datasheet:
0015
0016 English: https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT4x_Datasheet.pdf
0017
0018 Author: Navin Sankar Velliangiri <navin@linumiz.com>
0019
0020
0021 Description
0022 -----------
0023
0024 This driver implements support for the Sensirion SHT4x chip, a humidity
0025 and temperature sensor. Temperature is measured in degree celsius, relative
0026 humidity is expressed as a percentage. In sysfs interface, all values are
0027 scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500.
0028
0029 Usage Notes
0030 -----------
0031
0032 The device communicates with the I2C protocol. Sensors can have the I2C
0033 address 0x44. See Documentation/i2c/instantiating-devices.rst for methods
0034 to instantiate the device.
0035
0036 Sysfs entries
0037 -------------
0038
0039 =============== ============================================
0040 temp1_input Measured temperature in millidegrees Celcius
0041 humidity1_input Measured humidity in %H
0042 update_interval The minimum interval for polling the sensor,
0043 in milliseconds. Writable. Must be at least
0044 2000.
0045 =============== ============================================
