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1.. SPDX-License-Identifier: GPL-2.02 3Kernel driver sht4x4===================5 6Supported Chips:7 8 * Sensirion SHT4X9 10 Prefix: 'sht4x'11 12 Addresses scanned: None13 14 Datasheet:15 16 English: https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT4x_Datasheet.pdf17 18Author: Navin Sankar Velliangiri <navin@linumiz.com>19 20 21Description22-----------23 24This driver implements support for the Sensirion SHT4x chip, a humidity25and temperature sensor. Temperature is measured in degree celsius, relative26humidity is expressed as a percentage. In sysfs interface, all values are27scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500.28 29Usage Notes30-----------31 32The device communicates with the I2C protocol. Sensors can have the I2C33address 0x44. See Documentation/i2c/instantiating-devices.rst for methods34to instantiate the device.35 36Sysfs entries37-------------38 39=============== ============================================40temp1_input Measured temperature in millidegrees Celsius41humidity1_input Measured humidity in %H42update_interval The minimum interval for polling the sensor,43 in milliseconds. Writable. Must be at least44 2000.45=============== ============================================46