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- .. 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 <[email protected]>
- 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.
- =============== ============================================
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