mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 21:51:40 +00:00
505c254937
This patch adds a hwmon driver for the SHT4x Temperature and Humidity sensor. Signed-off-by: Navin Sankar Velliangiri <navin@linumiz.com> [groeck: dropped unnecessary empty line and continuation lines] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
46 lines
1.3 KiB
ReStructuredText
46 lines
1.3 KiB
ReStructuredText
.. 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.
|
|
============== =============================================
|