| /linux/drivers/thermal/ |
| H A D | thermal_thresholds.c | 57 return t1->temperature - t2->temperature; in __thermal_thresholds_cmp()
61 int temperature) in __thermal_thresholds_find() argument
66 if (t->temperature == temperature) in __thermal_thresholds_find()
72 static bool thermal_thresholds_handle_raising(struct list_head *thresholds, int temperature, in thermal_thresholds_handle_raising() argument
82 if (temperature >= t->temperature && in thermal_thresholds_handle_raising()
83 last_temperature < t->temperature) in thermal_thresholds_handle_raising()
90 static bool thermal_thresholds_handle_dropping(struct list_head *thresholds, int temperature, in thermal_thresholds_handle_dropping() argument
100 if (temperature <= t->temperature && in thermal_thresholds_handle_dropping()
101 last_temperature > t->temperature) in thermal_thresholds_handle_dropping()
108 static void thermal_threshold_find_boundaries(struct list_head *thresholds, int temperature, in thermal_threshold_find_boundaries() argument
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| /linux/Documentation/hwmon/ |
| H A D | nct6775.rst | 101 The chips support up to 25 temperature monitoring sources. Up to 6 of those are
102 direct temperature sensor inputs, the others are special sources such as PECI,
103 PCH, and SMBUS. Depending on the chip type, 2 to 6 of the temperature sources
110 The temperature sensor sources on all chips are configurable. The configured
111 source for each of the temperature sensors is provided in tempX_label.
114 either 1 degC or 0.5 degC, depending on the temperature source and
115 configuration. An alarm is triggered when the temperature gets higher than
116 the high limit; it stays on until the temperature falls below the hysteresis
134 In this mode, the chip attempts to keep the measured temperature in a
135 predefined temperature range. If the temperature goes out of range, fan
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| H A D | max1668.rst | 25 set; only two remote temperature inputs vs the four available on the other
34 temp1_input ro local (ambient) temperature
35 temp1_max rw local temperature maximum threshold for alarm
36 temp1_max_alarm ro local temperature maximum threshold alarm
37 temp1_min rw local temperature minimum threshold for alarm
38 temp1_min_alarm ro local temperature minimum threshold alarm
39 temp2_input ro remote temperature 1
40 temp2_max rw remote temperature 1 maximum threshold for alarm
41 temp2_max_alarm ro remote temperature 1 maximum threshold alarm
42 temp2_min rw remote temperature 1 minimum threshold for alarm
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| H A D | asc7621.rst | 27 specification. First enhancement is temperature reading resolution. We
42 data sheet. Our temperature reports and fan PWM outputs are very smooth
44 temperature reports. The smoother PWM output does not require user
49 outputs that are based on temperature limits. These are in 19h and 1Ah.
51 We offer flexible mapping of temperature readings to thermal zones. Any
52 temperature may be mapped to any zone, which has a default assignment
61 Both remote diode temperature readings may be given an offset value such
62 that the reported reading as well as the temperature used to determine
87 Using a 10-bit ADC, the aSC7621 measures the temperature of two remote diode
91 Using temperature information from these four zones, an automatic fan speed
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| H A D | max6639.rst | 22 temperature monitor with dual PWM fan speed controller. It can monitor its own
23 temperature and one external diode-connected transistor or two external
31 temp1_input R Temperature channel 1 input (0..150 C)
32 temp2_input R Temperature channel 2 input (0..150 C)
33 temp1_fault R Temperature channel 1 diode fault
34 temp2_fault R Temperature channel 2 diode fault
35 temp1_max RW Set THERM temperature for input 1
37 temp2_max RW Set THERM temperature for input 2
38 temp1_crit RW Set ALERT temperature for input 1
39 temp2_crit RW Set ALERT temperature for input 2
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| H A D | adt7410.rst | 50 The ADT7310/ADT7410 is a temperature sensor with rated temperature range of
53 INT pin to indicate that a minimum or maximum temperature set point has been
54 exceeded, as well as a critical temperature (CT) pin to indicate that the
55 critical temperature set point has been exceeded. Both pins can be set up with a
59 continuous temperature sampling, as well as sampling one temperature value per
64 package, a slightly narrower operating temperature range (-40°C to +150°C), and
75 maximum and critical temperature, it can only be set for temp#_max_hyst.
84 temp#_input temperature input
85 temp#_min temperature minimum setpoint
86 temp#_max temperature maximum setpoint
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| H A D | drivetemp.rst | 23 This driver supports reporting the temperature of disk and solid state
24 drives with temperature sensors.
27 the current drive temperature and, if available, temperature limits
30 the drive temperature.
36 Reading the drive temperature may reset the spin down timer on some drives.
40 With the WD120EFAX drive, reading the drive temperature using the drivetemp
42 reading the drive temperature in this mode will not cause the drive to
46 A known workaround for WD120EFAX drives is to read the drive temperature at
59 temp1_input Current drive temperature
60 temp1_lcrit Minimum temperature limit. Operating the device below
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| H A D | amc6821.rst | 22 The chip has one on-chip and one remote temperature sensor and one pwm fan
29 temp1_input ro on-chip temperature
37 temp2_input ro remote temperature
56 by remote temperature, 3=fan controlled by
57 combination of the on-chip temperature and
58 remote-sensor temperature,
64 temperature channels.
65 pwm1_auto_point2_pwm rw This value is shared for both temperature
68 temperature channels.
71 which is rw. Below this temperature fan stops.
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| H A D | k8temp.rst | 21 This driver permits reading temperature sensor(s) embedded inside AMD K8
29 There can be up to four temperature sensors inside single CPU. The driver
36 temp1_input temperature of Core 0 and "place" 0
37 temp2_input temperature of Core 0 and "place" 1
38 temp3_input temperature of Core 1 and "place" 0
39 temp4_input temperature of Core 1 and "place" 1
44 temperature is updated once a second. Valid temperatures are from -49 to
47 Temperature known as TCaseMax was specified for processors up to revision E.
48 This temperature is defined as temperature between heat-spreader and CPU
49 case, so the internal CPU temperature supplied by this driver can be higher.
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| H A D | max31760.rst | 21 The MAX31760 integrates temperature sensing along with precision PWM fan
22 control. It accurately measures its local die temperature and the remote
23 temperature of a discrete diode-connected transistor, such as a 2N3906,
25 and other ASICs. Multiple temperature thresholds, such as local
27 I2C-compatible interface. Fan speed is controlled based on the temperature
30 the user to program a smooth nonlinear fan speed vs. temperature transfer
35 remote high-temperature threshold has been exceeded.
37 Temperature measurement range: from -55°C to 125°C
39 Temperature Resolution: 11 Bits, ±0.125°C
64 temp[1-2]_label "Remote" and "Local" temperature channel labels
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| H A D | w83627ehf.rst | 87 The chips implement 3 to 4 temperature sensors (9 for NCT6775F and NCT6776F),
92 The temperature sensor sources on W82677HG-B, NCT6775F, and NCT6776F are
93 configurable. temp4 and higher attributes are only reported if its temperature
94 source differs from the temperature sources of the already reported temperature
95 sensors. The configured source for each of the temperature sensors is provided
101 An alarm is triggered when the temperature gets higher than high limit;
102 it stays on until the temperature falls below the hysteresis value.
117 In this mode, the chip attempts to keep the measured temperature in a
118 predefined temperature range. If the temperature goes out of range, fan
144 this file controls mode of fan/temperature control:
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| H A D | peci-cputemp.rst | 40 All temperature values are given in millidegree Celsius and will be measurable
48 temp1_input Provides current die temperature of the CPU package.
49 temp1_max Provides thermal control temperature of the CPU package
51 temp1_crit Provides shutdown temperature of the CPU package which
53 temperature, Tjmax or Tprochot.
58 temp2_input Provides current temperature of the CPU package scaled
60 temp2_max Provides thermal control temperature of the CPU package
62 temp2_crit Provides shutdown temperature of the CPU package which
64 temperature, Tjmax or Tprochot.
69 temp3_input Provides current Tcontrol temperature of the CPU
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| H A D | intel-m10-bmc-hwmon.rst | 18 This driver adds the temperature, voltage, current and power reading
41 tempX_input Temperature of the component (specified by tempX_label)
42 tempX_max Temperature maximum setpoint of the component
43 tempX_crit Temperature critical setpoint of the component
44 tempX_max_hyst Hysteresis for temperature maximum of the component
45 tempX_crit_hyst Hysteresis for temperature critical of the component
46 temp1_label "Board Temperature"
47 temp2_label "FPGA Die Temperature"
48 temp3_label "QSFP0 Temperature"
49 temp4_label "QSFP1 Temperature"
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| H A D | w83792d.rst | 44 The driver implements three temperature sensors, seven fan rotation speed
60 the temperature gets higher than the Overtemperature Shutdown value; it stays
61 on until the temperature falls below the Hysteresis value.
104 Tart will be asserted while target temperature cannot be achieved after 3 minutes
144 range. At first a wanted temperature and interval must be set. This is done
146 interval. The fan speed will be lowered as long as the current temperature
147 remains below the thermal_cruise# +- tolerance# value. Once the temperature
150 with the temperature varying. Three conditions may occur:
152 (1) If the temperature still exceeds the high limit, PWM duty
155 (2) If the temperature goes below the high limit, but still above the low
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| H A D | spd5118.rst | 8 * SPD5118 (JEDEC JESD300) compliant temperature sensor chips
26 This driver implements support for SPD5118 (JEDEC JESD300) compliant temperature
33 A SPD5118 compliant chip supports a single temperature sensor. Critical minimum,
34 minimum, maximum, and critical temperature can be configured. There are alarms
42 temp1_input Temperature (RO)
43 temp1_lcrit Low critical high temperature (RW)
44 temp1_min Minimum temperature (RW)
45 temp1_max Maximum temperature (RW)
46 temp1_crit Critical high temperature (RW)
48 temp1_lcrit_alarm Temperature low critical alarm
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| /linux/drivers/iio/humidity/ |
| H A D | Kconfig | 8 tristate "Aosong AM2315 relative humidity and temperature sensor"
14 relative humidity and ambient temperature sensor.
29 tristate "ENS210 temperature and humidity sensor"
34 humidity and temperature sensors.
40 tristate "TI HDC100x relative humidity and temperature sensor"
47 humidity and temperature sensors.
53 tristate "TI HDC2010 relative humidity and temperature sensor"
57 HDC2010 and HDC2080 relative humidity and temperature sensors.
63 tristate "TI HDC3020 relative humidity and temperature sensor"
68 HDC3020, HDC3021 and HDC3022 relative humidity and temperature
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| /linux/Documentation/devicetree/bindings/iio/afe/ |
| H A D | temperature-transducer.yaml | 4 $id: http://devicetree.org/schemas/iio/afe/temperature-transducer.yaml#
7 title: Temperature Transducer
13 A temperature transducer is a device that converts a thermal quantity
14 into any other physical quantity. This binding applies to temperature to
15 voltage (like the LTC2997), and temperature to current (like the AD590)
19 When an io-channel measures the output voltage of a temperature analog front
20 end such as a temperature transducer, the interesting measurement is almost
21 always the corresponding temperature, not the voltage output. This binding
29 When using a temperature to voltage transducer, Rsense is set to 1.
31 The following circuits show a temperature to current and a temperature to
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| /linux/arch/arm64/boot/dts/exynos/ |
| H A D | exynos5433-tmu.dtsi | 18 temperature = <65000>; /* millicelsius */
23 temperature = <70000>; /* millicelsius */
28 temperature = <75000>; /* millicelsius */
33 temperature = <80000>; /* millicelsius */
38 temperature = <85000>; /* millicelsius */
43 temperature = <90000>; /* millicelsius */
48 temperature = <95000>; /* millicelsius */
106 temperature = <65000>; /* millicelsius */
111 temperature = <70000>; /* millicelsius */
116 temperature = <75000>; /* millicelsius */
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| /linux/Documentation/devicetree/bindings/hwmon/ |
| H A D | nuvoton,nct7802.yaml | 15 5 remote temperature sensors with SMBus interface.
46 - 0 # Local Temperature Sensor ("LTD")
47 - 1 # Remote Temperature Sensor or Voltage Sensor 1 ("RTD1")
48 - 2 # Remote Temperature Sensor or Voltage Sensor 2 ("RTD2")
49 - 3 # Remote Temperature Sensor or Voltage Sensor 3 ("RTD3")
54 - temperature
57 temperature-mode:
68 # Otherwise (for all other channels), do not allow temperature-mode to be
86 # For channels RTD1 and RTD2 and if sensor-type is "temperature", require
87 # temperature-mode to be set. Otherwise (for all other channels or
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| /linux/drivers/hwmon/ |
| H A D | intel-m10-bmc-hwmon.c | 39 { 0x100, 0x104, 0x108, 0x10c, 0x0, 500, "Board Temperature" },
40 { 0x110, 0x114, 0x118, 0x0, 0x0, 500, "FPGA Die Temperature" },
41 { 0x11c, 0x124, 0x120, 0x0, 0x0, 500, "QSFP0 Temperature" },
42 { 0x12c, 0x134, 0x130, 0x0, 0x0, 500, "QSFP1 Temperature" },
43 { 0x168, 0x0, 0x0, 0x0, 0x0, 500, "Retimer A Temperature" },
44 { 0x16c, 0x0, 0x0, 0x0, 0x0, 500, "Retimer A SerDes Temperature" },
45 { 0x170, 0x0, 0x0, 0x0, 0x0, 500, "Retimer B Temperature" },
46 { 0x174, 0x0, 0x0, 0x0, 0x0, 500, "Retimer B SerDes Temperature" },
103 { 0x100, 0x104, 0x108, 0x10c, 0x0, 500, "Board Inlet Air Temperature" },
104 { 0x110, 0x114, 0x118, 0x0, 0x0, 500, "FPGA Core Temperature" },
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| H A D | drivetemp.c | 3 * Hwmon client for disk and solid state drives with temperature sensors
7 * Hwmon client for S.M.A.R.T. hard disk drives with temperature sensors.
10 * hwmon: Driver for SCSI/ATA temperature sensors
13 * This drive supports reporting the temperature of SATA drives. It can be
14 * easily extended to report the temperature of SCSI drives.
16 * The primary means to read drive temperatures and temperature limits
19 * It can be used to read the current drive temperature, temperature limits,
32 * 190 Temperature Temperature, monitored by a sensor somewhere inside
34 * temperature (hexadecimal) in its rightmost two digits.
36 * 194 Temperature Temperature, monitored by a sensor somewhere inside
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| /linux/Documentation/driver-api/thermal/ |
| H A D | exynos_thermal.rst | 17 This driver allows to read temperature inside Samsung Exynos4/5 series of SoC.
19 The chip only exposes the measured 8-bit temperature code value
21 Temperature can be taken from the temperature code.
22 There are three equations converting from temperature to temperature code.
38 Temperature code, T: Temperature,
41 Temperature code measured at 25 degree Celsius which is unchanged
44 Temperature code measured at 85 degree Celsius which is unchanged
47 when temperature exceeds pre-defined levels.
51 Level_0: current temperature > trigger_level_0 + threshold
52 Level_1: current temperature > trigger_level_1 + threshold
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| H A D | power_allocator.rst | 10 1. "switch on" trip point: temperature above which the governor
14 2. "desired temperature" trip point: it should be higher than the
15 "switch on" trip point. This the target temperature the governor
24 temperature as the control input and power as the controlled output:
66 temperature. This is the maximum sustained power for allocation at
67 the desired maximum temperature. The actual sustained power can vary
106 constant during temperature overshoot periods (current temperature is
107 above "desired temperature" trip point). Conversely, `k_pu` is the
108 proportional term constant during temperature undershoot periods
109 (current temperature below "desired temperature" trip point).
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| /linux/Documentation/devicetree/bindings/ |
| H A D | trivial-devices.yaml | 35 … # SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin
48 # Temperature monitoring of Astera Labs PT5161L PCIe retimer
58 # Bosch Sensortec pressure, temperature, humididty and VOC sensor
112 # Honeywell Humidicon HIH-6130 humidity/temperature sensor
122 # Infineon barometric pressure and temperature sensor
172 # Temperature Sensor, I2C interface
174 # 3-Channel Remote Temperature Sensor
188 # Measurement Specialities I2C temperature and humidity sensor
190 # Measurement Specialities I2C pressure and temperature sensor
192 # Measurement Specialities I2C pressure and temperature sensor
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| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-class-thermal | 14 Current temperature as reported by thermal zone (sensor).
51 The temperature above which trip point will be fired.
102 Interface to set the emulated temperature method in thermal zone
103 (sensor). After setting this temperature, the thermal zone may
104 pass this temperature to platform emulation function if
106 different temperature threshold and its associated cooling
117 flooding this sysfs node with low temperature values.
140 controller during temperature overshoot. Temperature overshoot
141 is when the current temperature is above the "desired
142 temperature" trip point. For more information see
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