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hwmon: (sht3x) add support for SHT85

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SHT85 is a temperature and humidity sensor with the same interface
as SHT3x.

Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com>
Link: https://lore.kernel.org/r/20251211185842.66084-1-apokusinski01@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Antoni Pokusinski 2025-12-11 19:58:42 +01:00 • committed by Guenter Roeck
parent af7e57d444
commit 1fe80112e4
3 changed files with 16 additions and 7 deletions
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18
Documentation/hwmon/sht3x.rst
View file

@ -23,6 +23,14 @@ Supported chips:
- https://sensirion.com/media/documents/1DA31AFD/61641F76/Sensirion_Temperature_Sensors_STS3x_Datasheet.pdf
- https://sensirion.com/media/documents/292A335C/65537BAF/Sensirion_Datasheet_STS32_STS33.pdf
* Sensirion SHT85
Prefix: 'sht85'
Addresses scanned: none
Datasheet: https://sensirion.com/media/documents/4B40CEF3/640B2346/Sensirion_Humidity_Sensors_SHT85_Datasheet.pdf
Author:
- David Frey <david.frey@sensirion.com>
@ -31,15 +39,15 @@ Author:
Description
-----------
This driver implements support for the Sensirion SHT3x-DIS and STS3x-DIS
This driver implements support for the Sensirion SHT3x-DIS, STS3x-DIS and SHT85
series of humidity and temperature sensors. Temperature is measured in degrees
celsius, relative humidity is expressed as a percentage. In the sysfs interface,
all values are scaled by 1000, i.e. the value for 31.5 degrees celsius is 31500.
The device communicates with the I2C protocol. Sensors can have the I2C
addresses 0x44 or 0x45 (0x4a or 0x4b for sts3x), depending on the wiring. See
Documentation/i2c/instantiating-devices.rst for methods to instantiate the
device.
The device communicates with the I2C protocol. SHT3x sensors can have the I2C
addresses 0x44 or 0x45 (0x4a or 0x4b for sts3x), depending on the wiring. SHT85
address is 0x44 and is fixed. See Documentation/i2c/instantiating-devices.rst for
methods to instantiate the device.
Even if sht3x sensor supports clock-stretch (blocking mode) and non-stretch
(non-blocking mode) in single-shot mode, this driver only supports the latter.

4
drivers/hwmon/Kconfig
View file

@ -1983,8 +1983,8 @@ config SENSORS_SHT3x
depends on I2C
select CRC8
help
If you say yes here you get support for the Sensiron SHT30 and SHT31
humidity and temperature sensors.
If you say yes here you get support for the Sensiron SHT30, SHT31 and
SHT85 humidity and temperature sensors.
This driver can also be built as a module. If so, the module
will be called sht3x.

1
drivers/hwmon/sht3x.c
View file

@ -933,6 +933,7 @@ static int sht3x_probe(struct i2c_client *client)
static const struct i2c_device_id sht3x_ids[] = {
{"sht3x", sht3x},
{"sts3x", sts3x},
{"sht85", sht3x},
{}
};