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/OK3568_Linux_fs/kernel/Documentation/hwmon/
H A Dnct6775.rst19 * Nuvoton NCT5572D/NCT6771F/NCT6772F/NCT6775F/W83677HG-I
87 Guenter Roeck <linux@roeck-us.net>
90 -----------
95 The chips support up to 25 temperature monitoring sources. Up to 6 of those are
96 direct temperature sensor inputs, the others are special sources such as PECI,
97 PCH, and SMBUS. Depending on the chip type, 2 to 6 of the temperature sources
104 The temperature sensor sources on all chips are configurable. The configured
105 source for each of the temperature sensors is provided in tempX_label.
108 either 1 degC or 0.5 degC, depending on the temperature source and
109 configuration. An alarm is triggered when the temperature gets higher than
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H A Dasc7621.rst20 Andigilog has both the PECI and pre-PECI versions of the Heceta-6, as
21 Intel calls them. Heceta-6e has high frequency PWM and Heceta-6p has
23 Heceta-6e part and aSC7621 is the Heceta-6p part. They are both in
27 specification. First enhancement is temperature reading resolution. We
28 have used registers below 20h for vendor-specific functions in addition
29 to those in the Intel-specified vendor range.
32 The fan speed control uses this finer value to produce a "step-less" fan
33 PWM output. These two bytes are "read-locked" to guarantee that once a
34 high or low byte is read, the other byte is locked-in until after the
37 sheet says 10-bits of resolution, although you may find the lower bits
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H A Dmax1668.rst12 Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX1668-MAX1989.pdf
19 -----------
25 set; only two remote temperature inputs vs the four available on the other
31 - MAX1805, MAX1668 and MAX1989:
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
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H A Dmax6639.rst12 Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6639.pdf
15 - He Changqing <hechangqing@semptian.com>
16 - Roland Stigge <stigge@antcom.de>
19 -----------
21 This driver implements support for the Maxim MAX6639. This chip is a 2-channel
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
24 diode-connected transistors.
31 temp1_input R Temperature channel 1 input (0..150 C)
32 temp2_input R Temperature channel 2 input (0..150 C)
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H A Dadt7410.rst14 https://www.analog.com/static/imported-files/data_sheets/ADT7410.pdf
23 https://www.analog.com/static/imported-files/data_sheets/ADT7420.pdf
33 https://www.analog.com/static/imported-files/data_sheets/ADT7310.pdf
43 https://www.analog.com/static/imported-files/data_sheets/ADT7320.pdf
48 -----------
50 The ADT7310/ADT7410 is a temperature sensor with rated temperature range of
51 -55°C to +150°C. It has a high accuracy of +/-0.5°C and can be operated at a
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
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H A Ddrivetemp.rst1 .. SPDX-License-Identifier: GPL-2.0
8 ----------
10 ANS T13/1699-D
11 Information technology - AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS)
14 Information technology - SCSI Primary Commands - 4 (SPC-4)
17 Information technology - SCSI / ATA Translation - 5 (SAT-5)
21 -----------
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
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H A Damc6821.rst19 -----------
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
54 by remote temperature, 3=fan controlled by
55 combination of the on-chip temperature and
56 remote-sensor temperature,
59 temperature channels.
60 pwm1_auto_point2_pwm rw This value is shared for both temperature
63 temperature channels.
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H A Dk8temp.rst19 -----------
21 This driver permits reading temperature sensor(s) embedded inside AMD K8
24 revisions of K8 except the first two revisions (SH-B0 and SH-B3).
26 Please note that you will need at least lm-sensors 2.10.1 for proper userspace
29 There can be up to four temperature sensors inside single CPU. The driver
30 will auto-detect the sensors and will display only temperatures from
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
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H A Dw83627ehf.rst22 * Winbond W83627DHG-P
46 * Winbond W83667HG-B
54 * Nuvoton NCT6775F/W83667HG-I
73 - Jean Delvare <jdelvare@suse.de>
74 - Yuan Mu (Winbond)
75 - Rudolf Marek <r.marek@assembler.cz>
76 - David Hubbard <david.c.hubbard@gmail.com>
77 - Gong Jun <JGong@nuvoton.com>
80 -----------
83 W83627DHG, W83627DHG-P, W83627UHG, W83667HG, W83667HG-B, W83667HG-I
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H A Dintel-m10-bmc-hwmon.rst1 .. SPDX-License-Identifier: GPL-2.0
3 Kernel driver intel-m10-bmc-hwmon
10 Prefix: 'n3000bmc-hwmon'
16 -----------
18 This driver adds the temperature, voltage, current and power reading
34 ----------------
38 - Intel MAX 10 BMC for Intel PAC N3000:
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
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H A Dw83792d.rst10 Addresses scanned: I2C 0x2c - 0x2f
19 -----------------
35 -----------
42 parameter; this will put it into a more well-behaved state first.
44 The driver implements three temperature sensors, seven fan rotation speed
48 The driver also implements up to seven fan control outputs: pwm1-7. Pwm1-7
53 Automatic fan control mode is possible only for fan1-fan3.
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
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H A Dlm83.rst10 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
18 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
27 -----------
29 The LM83 is a digital temperature sensor. It senses its own temperature as
30 well as the temperature of up to three external diodes. The LM82 is
34 in that the later can only sense the temperature of one external diode.
52 Gigabyte GA-8IK1100
54 Soltek SL-75DRV5
64 Most motherboards come with more than just temperature sensors for
66 sensors. This means that temperature-only chips are usually used as
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H A Dltc2947.rst1 Kernel drivers ltc2947-i2c and ltc2947-spi
10 Addresses scanned: -
14 https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2947.pdf
22 voltage, power, temperature, charge and energy. The device supports both SPI
29 to control a fan as a function of measured temperature. Then, the GPIO becomes
30 active as soon as a temperature reading is higher than a defined threshold. The
37 The following attributes are supported. Limits are read-write, reset_history
38 is write-only and all the other attributes are read-only.
41 in0_input VP-VM voltage (mV).
49 in0_label Channel label (VP-VM)
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H A Djc42.rst10 https://www.analog.com/static/imported-files/data_sheets/ADT7408.pdf
20 http://www.atmel.com/Images/Atmel-8852-SEEPROM-AT30TSE002A-Datasheet.pdf
22 http://www.atmel.com/Images/Atmel-8868-DTS-AT30TSE004A-Datasheet.pdf
36 http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf
70 https://www.onsemi.com/pub_link/Collateral/CAT34TS02-D.PDF
72 https://www.onsemi.com/pub/Collateral/CAT6095-D.PDF
88 * JEDEC JC 42.4 compliant temperature sensor chips
99 Addresses scanned: I2C 0x18 - 0x1f
102 Guenter Roeck <linux@roeck-us.net>
106 -----------
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H A Dmax16601.rst1 .. SPDX-License-Identifier: GPL-2.0
12 Addresses scanned: -
16 Author: Guenter Roeck <linux@roeck-us.net>
20 -----------
22 This driver supports the MAX16601 VR13.HC Dual-Output Voltage Regulator
30 -----------
32 This driver does not auto-detect devices. You will have to instantiate the
33 devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
38 ---------------------
44 -------------
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/OK3568_Linux_fs/kernel/arch/arm64/boot/dts/exynos/
H A Dexynos5433-tmu.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/thermal/thermal.h>
11 thermal-zones {
12 atlas0_thermal: atlas0-thermal {
13 thermal-sensors = <&tmu_atlas0>;
14 polling-delay-passive = <0>;
15 polling-delay = <0>;
17 atlas0_alert_0: atlas0-alert-0 {
18 temperature = <65000>; /* millicelsius */
22 atlas0_alert_1: atlas0-alert-1 {
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/OK3568_Linux_fs/kernel/drivers/thermal/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
12 Each thermal zone contains its own temperature, trip points,
25 zones discovery, temperature readings and events such as
37 int "Emergency poweroff delay in milli-seconds"
123 Select this if you want to control temperature based on
130 bool "Fair-share thermal governor"
132 Enable this to manage platform thermals using fair-share governor.
146 Say 'Y' here if you want to use two point temperature regulation
212 directory to support temperature emulation. With emulation sysfs node,
213 user can manually input temperature and test the different trip
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/OK3568_Linux_fs/kernel/drivers/hwmon/
H A Ddrivetemp.c1 // SPDX-License-Identifier: GPL-2.0
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
14 * easily extended to report the temperature of SCSI drives.
16 * The primary means to read drive temperatures and temperature limits
18 * ATA8-ACS.
19 * It can be used to read the current drive temperature, temperature limits,
21 * feature set is documented in "AT Attachment 8 - ATA/ATAPI Command Set
22 * (ATA8-ACS)".
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/OK3568_Linux_fs/kernel/drivers/iio/humidity/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
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.
62 will be called hid-sensor-humidity.
73 temperature-humidity sensor
89 tristate "Measurement Specialties HTU21 humidity & temperature sensor"
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/OK3568_Linux_fs/kernel/Documentation/driver-api/thermal/
H A Dexynos_thermal.rst15 ---------------------------
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.
27 Tc = (T - 25) * (TI2 - TI1) / (85 - 25) + TI1
31 Tc = T + TI1 - 25
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
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H A Dpower_allocator.rst6 -----------
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
20 --------------
23 Proportional-Integral-Derivative controller (PID controller) with
24 temperature as the control input and power as the controlled output:
29 - e = desired_temperature - current_temperature
30 - err_integral is the sum of previous errors
31 - diff_err = e - previous_error
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H A Dsysfs-api.rst19 This how-to focuses on enabling new thermal zone and cooling devices to
27 inputs from thermal zone attributes (the current temperature and trip point
28 temperature) and throttle appropriate devices.
30 - `[0-*]` denotes any positive number starting from 0
31 - `[1-*]` denotes any positive number starting from 1
37 ---------------------------------
49 /sys/class/thermal folder as `thermal_zone[0-*]`. It tries to bind all the
61 thermal zone device call-backs.
68 get the current temperature of the thermal zone.
70 set the trip points window. Whenever the current temperature
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/OK3568_Linux_fs/kernel/arch/arm/boot/dts/
H A Dexynos5422-odroidxu3-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * Hardkernel Odroid XU3/XU3-Lite/XU4 boards common device tree source
12 #include <dt-bindings/input/input.h>
13 #include "exynos5422-odroid-core.dtsi"
17 compatible = "gpio-keys";
18 pinctrl-names = "default";
19 pinctrl-0 = <&power_key>;
32 debounce-interval = <0>;
33 wakeup-source;
38 pinctrl-0 = <&emmc_nrst_pin>;
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/OK3568_Linux_fs/kernel/Documentation/w1/slaves/
H A Dw1_therm.rst7 * Maxim ds18*20 based temperature sensors.
8 * Maxim ds1825 based temperature sensors.
9 * GXCAS GC20MH01 temperature sensor.
15 -----------
17 w1_therm provides basic temperature conversion for ds18*20, ds28ea00, GX20MH01
31 read sequence will initiate a temperature conversion, then provide two
35 displays the retained values along with a temperature in millidegrees
38 Alternatively, temperature can be read using ``temperature`` sysfs, it
39 returns only the temperature in millidegrees Centigrade.
48 -1 if at least one sensor still in conversion, 1 if conversion is complete
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/OK3568_Linux_fs/kernel/drivers/iio/temperature/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # Temperature sensor drivers
5 menu "Temperature sensors"
8 tristate "Azoteq IQS620AT temperature sensor"
12 temperature sensor.
15 will be called iqs620at-temp.
18 tristate "Analog Devices Multi-Sensor Digital Temperature Measurement System"
22 Say yes here to build support for the LTC2983 Multi-Sensor
23 high accuracy digital temperature measurement system.
45 tristate "HID Environmental temperature sensor"
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