From 1fe80112e4a151d3184a702412b7be0bcd819dab Mon Sep 17 00:00:00 2001 From: Antoni Pokusinski Date: Thu, 11 Dec 2025 19:58:42 +0100 Subject: [PATCH] hwmon: (sht3x) add support for SHT85 SHT85 is a temperature and humidity sensor with the same interface as SHT3x. Signed-off-by: Antoni Pokusinski Link: https://lore.kernel.org/r/20251211185842.66084-1-apokusinski01@gmail.com Signed-off-by: Guenter Roeck --- Documentation/hwmon/sht3x.rst | 18 +++++++++++++----- drivers/hwmon/Kconfig | 4 ++-- drivers/hwmon/sht3x.c | 1 + 3 files changed, 16 insertions(+), 7 deletions(-) diff --git a/Documentation/hwmon/sht3x.rst b/Documentation/hwmon/sht3x.rst index 9585fa7c5a5d8..ea1642920295c 100644 --- a/Documentation/hwmon/sht3x.rst +++ b/Documentation/hwmon/sht3x.rst @@ -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 @@ -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. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 157678b821fc5..d9bac1e3057ba 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -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. diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c index f36c0229328fa..08306ccb6d0be 100644 --- a/drivers/hwmon/sht3x.c +++ b/drivers/hwmon/sht3x.c @@ -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}, {} }; -- 2.47.3