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/Linux-v5.10/drivers/iio/humidity/
DKconfig3 # humidity sensor drivers
5 menu "Humidity sensors"
8 tristate "Aosong AM2315 relative humidity and temperature sensor"
14 relative humidity and ambient temperature sensor.
29 tristate "TI HDC100x relative humidity and temperature sensor"
36 humidity and temperature sensors.
42 tristate "TI HDC2010 relative humidity and temperature sensor"
46 HDC2010 and HDC2080 relative humidity and temperature sensors.
52 tristate "HID Environmental humidity sensor"
60 humidity driver
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Dsi7020.c3 * si7020.c - Silicon Labs Si7013/20/21 Relative Humidity and Temp Sensors
9 * The Silicon Labs Si7013/20/21 Relative Humidity and Temperature Sensors
11 * measuring relative humidity and temperature. The Si7013 has an additional
30 /* Measure Relative Humidity, Hold Master Mode */
54 * Humidity values can slightly exceed the 0-100%RH in si7020_read_raw()
72 * Relative humidity will be 0.0032959% too high and in si7020_read_raw()
164 MODULE_DESCRIPTION("Silicon Labs Si7013/20/21 Relative Humidity and Temperature Sensors");
Dhtu21.c4 * htu21 temperature & humidity sensor
5 * and humidity part of MS8607 sensor
44 unsigned int humidity; in htu21_read_raw() local
60 &humidity); in htu21_read_raw()
63 *val = humidity; in htu21_read_raw()
234 {"ms8607-humidity", MS8607},
241 { .compatible = "meas,ms8607-humidity", },
257 MODULE_DESCRIPTION("Measurement-Specialties htu21 temperature and humidity driver");
DMakefile3 # Makefile for IIO humidity sensor drivers
10 obj-$(CONFIG_HID_SENSOR_HUMIDITY) += hid-sensor-humidity.o
Ddht11.c83 int humidity; member
155 dht11->humidity = ((hum_int << 8) + hum_dec) * 100; in dht11_decode()
158 dht11->humidity = hum_int * 1000; in dht11_decode()
266 *val = dht11->humidity; in dht11_read_raw()
343 MODULE_DESCRIPTION("DHT11 humidity/temperature sensor driver");
Dam2315.c3 * Aosong AM2315 relative humidity and temperature
108 * <humidity MSB> <humidity LSB> <temp MSB> <temp LSB> in am2315_read_data()
278 MODULE_DESCRIPTION("Aosong AM2315 relative humidity and temperature");
Dhts221_buffer.c62 * H_DA bit (humidity data available) is routed to DRDY line. in hts221_trigger_handler_thread()
63 * Humidity sample is computed after temperature one. in hts221_trigger_handler_thread()
167 /* humidity data */ in hts221_buffer_handler_thread()
/Linux-v5.10/Documentation/hwmon/
Dsht3x.rst22 This driver implements support for the Sensirion SHT3x-DIS chip, a humidity
24 humidity is expressed as a percentage. In the sysfs interface, all values are
55 with the configured update interval on the chip. When a temperature or humidity
58 When the temperature and humidity readings move back between the hysteresis
67 humidity1_input: humidity input
70 humidity1_max: humidity max value
71 humidity1_max_hyst: humidity hysteresis value for max limit
74 humidity1_min: humidity min value
75 humidity1_min_hyst: humidity hysteresis value for min limit
78 humidity1_alarm: alarm flag is set to 1 if the humidity is outside the
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Dsht15.rst35 http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
40 The SHT10, SHT11, SHT15, SHT71, and SHT75 are humidity and temperature
46 bits for humidity, or 12 bits for temperature and 8 bits for humidity.
48 The humidity calibration coefficients are programmed into an OTP memory on the
69 flag to indicate the temp/humidity resolution to use (default to false).
76 humidity1_input humidity input
Dsht21.rst37 The SHT21 and SHT25 are humidity and temperature sensors in a DFN package of
39 devices is the higher level of precision of the SHT25 (1.8% relative humidity,
40 0.2 degree Celsius) compared with the SHT21 (2.0% relative humidity,
54 - humidity input
61 The driver uses the default resolution settings of 12 bit for humidity and 14
63 humidity and 66 ms for temperature. To keep self heating below 0.1 degree
Dshtc1.rst44 chips, a humidity and temperature sensor. Temperature is measured in degrees
45 celsius, relative humidity is expressed as a percentage.
67 - humidity input
Dhih6130.rst22 The HIH-6130 & HIH-6131 are humidity and temperature sensors in a SO8 package.
40 humidity input
Dsysfs-interface.rst914 Humidity section in Naming and data format standards for sysfs files
917 `humidity[1-*]_input`
918 Humidity
925 `humidity[1-*]_enable`
936 `humidity[1-*]_rated_min`
937 Minimum rated humidity.
943 `humidity[1-*]_rated_max`
944 Maximum rated humidity.
/Linux-v5.10/drivers/hwmon/
Dhih6130.c2 /* Honeywell HIH-6130/HIH-6131 humidity and temperature sensor driver
32 * @humidity: cached humidity measurement value
41 int humidity; member
61 * hih6130_rh_ticks_to_per_cent_mille() - convert raw humidity ticks to
62 * one-thousandths of a percent relative humidity
63 * @ticks: humidity ticks value received from sensor
103 * The datasheet specifies maximum 'Response time' for humidity at 8s in hih6130_update_measurements()
138 hih6130->humidity = hih6130_rh_ticks_to_per_cent_mille(t); in hih6130_update_measurements()
175 * hih6130_show_humidity() - show humidity measurement value in sysfs
192 return sprintf(buf, "%d\n", hih6130->humidity); in hih6130_humidity_show()
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Dsht21.c2 /* Sensirion SHT21 humidity and temperature sensor driver
34 * @humidity: cached humidity measurement value
43 int humidity; member
64 * sht21_rh_ticks_to_per_cent_mille() - convert raw humidity ticks to
65 * one-thousandths of a percent relative humidity
66 * @ticks: humidity ticks value received from sensor
106 sht21->humidity = sht21_rh_ticks_to_per_cent_mille(ret); in sht21_update_measurements()
139 * sht21_show_humidity() - show humidity measurement value in sysfs
156 return sprintf(buf, "%d\n", sht21->humidity); in sht21_humidity_show()
295 MODULE_DESCRIPTION("Sensirion SHT21 humidity and temperature sensor driver");
Dsht3x.c2 /* Sensirion SHT3x-DIS humidity and temperature sensor driver.
142 * cached values for temperature and humidity and limits
148 u32 humidity; member
247 data->humidity = sht3x_extract_humidity(val); in sht3x_update_client()
279 return sprintf(buf, "%u\n", data->humidity); in humidity1_input_show()
290 u32 humidity; in limits_update() local
307 humidity = sht3x_extract_humidity(raw & 0xfe00); in limits_update()
309 data->humidity_limits[index] = humidity; in limits_update()
344 u32 humidity) in limit_store() argument
365 raw |= ((humidity * 42950) >> 16) & 0xfe00; in limit_store()
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Dshtc1.c2 /* Sensirion SHTC1 humidity and temperature sensor driver
68 int humidity; /* 1000 * relative humidity in %RH */ member
126 data->humidity = ((12500 * val) >> 13); in shtc1_update_client()
156 return sprintf(buf, "%d\n", data->humidity); in humidity1_input_show()
289 MODULE_DESCRIPTION("Sensirion SHTC1 humidity and temperature sensor driver");
Dhwmon.c521 [hwmon_humidity_enable] = "humidity%d_enable",
522 [hwmon_humidity_input] = "humidity%d_input",
523 [hwmon_humidity_label] = "humidity%d_label",
524 [hwmon_humidity_min] = "humidity%d_min",
525 [hwmon_humidity_min_hyst] = "humidity%d_min_hyst",
526 [hwmon_humidity_max] = "humidity%d_max",
527 [hwmon_humidity_max_hyst] = "humidity%d_max_hyst",
528 [hwmon_humidity_alarm] = "humidity%d_alarm",
529 [hwmon_humidity_fault] = "humidity%d_fault",
530 [hwmon_humidity_rated_min] = "humidity%d_rated_min",
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/Linux-v5.10/Documentation/devicetree/bindings/iio/humidity/
Dti,hdc2010.yaml4 $id: http://devicetree.org/schemas/iio/humidity/ti,hdc2010.yaml#
7 title: HDC2010/HDC2080 humidity and temperature iio sensors
13 Relative humidity and tempereature sensors on I2C bus
43 humidity@40 {
Dhtu21.txt1 *HTU21 - Measurement-Specialties htu21 temperature & humidity sensor and humidity part of MS8607 se…
5 - compatible: should be "meas,htu21" or "meas,ms8607-humidity"
/Linux-v5.10/drivers/iio/common/ms_sensors/
Dms_sensors_i2c.c276 * @dev_data: pointer to temperature/humidity device data
306 * @dev_data: pointer to temperature/humidity device data
333 * @dev_data: pointer to temperature/humidity device data
360 * @dev_data: pointer to temperature/humidity device data
408 * @dev_data: pointer to temperature/humidity device data
448 * ms_sensors_ht_read_humidity() - Read humidity
449 * @dev_data: pointer to temperature/humidity device data
450 * @humidity: pointer to humidity destination value
452 * This function will get humidity ADC value from the device,
459 u32 *humidity) in ms_sensors_ht_read_humidity() argument
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Dms_sensors_i2c.h17 * struct ms_ht_dev - Humidity/Temperature sensor device structure
57 u32 *humidity);
/Linux-v5.10/Documentation/devicetree/bindings/hwmon/
Dsensirion,shtc1.yaml7 title: Sensirion SHTC1 Humidity and Temperature Sensor IC
13 The SHTC1, SHTW1 and SHTC3 are digital humidity and temperature sensor
/Linux-v5.10/drivers/iio/chemical/
DKconfig44 temperature, pressure, humidity and gas sensing capability.
94 dioxide, relative humidity and temperature sensing capabilities.
Dbme680_core.c3 * Bosch BME680 - Temperature, Pressure, Humidity & Gas Sensor
61 * and humidity compensation calculations.
217 /* Humidity related coefficients */ in bme680_read_calib()
400 * Returns humidity measurement in percent, resolution is 0.001 percent. Output
545 * Highly recommended to set oversampling of humidity before in bme680_chip_config()
643 * pressure/humidity readings. in bme680_read_temp()
702 dev_err(dev, "failed to read humidity\n"); in bme680_read_humid()
709 dev_err(dev, "reading humidity skipped\n"); in bme680_read_humid()

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