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Documentation/hwmon/adt7411 1.26 KB
d84ca5b34   Wolfram Sang   hwmon: Add driver...
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  Kernel driver adt7411
  =====================
  
  Supported chips:
    * Analog Devices ADT7411
      Prefix: 'adt7411'
      Addresses scanned: 0x48, 0x4a, 0x4b
      Datasheet: Publicly available at the Analog Devices website
  
  Author: Wolfram Sang (based on adt7470 by Darrick J. Wong)
  
  Description
  -----------
  
  This driver implements support for the Analog Devices ADT7411 chip. There may
  be other chips that implement this interface.
  
  The ADT7411 can use an I2C/SMBus compatible 2-wire interface or an
  SPI-compatible 4-wire interface. It provides a 10-bit analog to digital
  converter which measures 1 temperature, vdd and 8 input voltages. It has an
  internal temperature sensor, but an external one can also be connected (one
  loses 2 inputs then). There are high- and low-limit registers for all inputs.
  
  Check the datasheet for details.
  
  sysfs-Interface
  ---------------
  
  in0_input	- vdd voltage input
  in[1-8]_input	- analog 1-8 input
  temp1_input	- temperature input
  
  Besides standard interfaces, this driver adds (0 = off, 1 = on):
  
    adc_ref_vdd	- Use vdd as reference instead of 2.25 V
    fast_sampling	- Sample at 22.5 kHz instead of 1.4 kHz, but drop filters
    no_average	- Turn off averaging over 16 samples
  
  Notes
  -----
  
  SPI, external temperature sensor and limit registers are not supported yet.