summaryrefslogtreecommitdiffstats
path: root/Documentation/hwmon/sht4x.rst
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--Documentation/hwmon/sht4x.rst45
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/hwmon/sht4x.rst b/Documentation/hwmon/sht4x.rst
new file mode 100644
index 0000000000..daf21e7634
--- /dev/null
+++ b/Documentation/hwmon/sht4x.rst
@@ -0,0 +1,45 @@
+.. 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 Celsius
+humidity1_input Measured humidity in %H
+update_interval The minimum interval for polling the sensor,
+ in milliseconds. Writable. Must be at least
+ 2000.
+=============== ============================================