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Linux Driver for I2C temperature sensors
LM75SW-LINUX
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Description

The Linux driver support LM75 compatible Temperature Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • LM75A
  • TMP100
  • TMP101
  • TMP105
  • TMP112
  • TMP175
  • TMP275
  • TMP75
  • TMP1075
Linux Source Files

The files associated with this device are:

  1. drivers/hwmon/lm75.c
  2. Documentation/devicetree/bindings/i2c/trivial-devices.txt
  3. drivers/hwmon/lm75.h
  4. Documentation/hwmon/lm75
Source Files

drivers/hwmon/lm75.c

Linux Device Tree Documenation

Documentation/devicetree/bindings/i2c/trivial-devices.txt

Other Files

drivers/hwmon/lm75.h
Documentation/hwmon/lm75

 

Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or
"make nconfig")

Menuconfig Location

Symbol: SENSORS_LM75 [=y]
Type  : tristate
Prompt: National Semiconductor LM75 and compatibles
  Location:
    -> Device Drivers
      -> Hardware Monitoring support (HWMON [=y])
  Defined at drivers/hwmon/Kconfig:923
  Depends on: HWMON [=y] && I2C [=y] && (THERMAL [=y] || !THERMAL_OF [=y])

Fixes and Code Enhancements

 

If there are fixes and or code enhancements that need to be added to this
driver please either

1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Here

or

2.  Contact your TI representative.

 

TI Devices (12)

Part Number Name Product Family
LM75A  ±2°C, 2.7V to 5.5V industry standard temperature sensor with I2C/SMBus interface  Temperature sensors 
TMP100  Temperature Sensor with I2C/SMBus Interface in SOT-23  Temperature sensors 
TMP101  ±2°C Digital temperature sensor with I2C/SMBus interface and alert in SOT-23  Temperature sensors 
TMP105  ±2°C, 2.6V to 3.3V digital temperature sensor with I2C/SMBus interface & Alert fun  Temperature sensors 
TMP1075  1°C I2C Temperature sensor with performance upgrades to industry standard LM75 / TMP75  Temperature sensors 
TMP112  ±0.5°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 package   Temperature sensors 
TMP175  Temperature Sensor with 27 I2C/SMBus Addresses in Industry Standard LM75 Form Factor & Pinout  Temperature sensors 
TMP175-Q1  Automotive Temp. Sensor with 27 I2C/SMBus Addresses in Industry Standard LM75 Form Factor & Pinout  Temperature sensors 
TMP275  ±0.5°C Temperature Sensor with I2C/SMBus Interface in Industry Std LM75 Form Factor & Pinout  Temperature sensors 
TMP275-Q1  Automotive ±0.75°C Temp Sensor with I2C/SMBus Interface in Industry Std LM75 Form Factor & Pinout  Temperature sensors 
TMP75  Temperature Sensor with I2C/SMBus Interface in Industry Standard LM75 Form Factor & Pinout  Temperature sensors 
TMP75-Q1  Automotive Temp Sensor with I2C/SMBus Interface in Industry Standard LM75 Form Factor & Pinout  Temperature sensors 

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