linux/Documentation/hwmon/lm95245
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   1Kernel driver lm95245
   2==================
   3
   4Supported chips:
   5  * National Semiconductor LM95245
   6    Addresses scanned: I2C 0x18, 0x19, 0x29, 0x4c, 0x4d
   7    Datasheet: Publicly available at the National Semiconductor website
   8               http://www.national.com/mpf/LM/LM95245.html
   9
  10
  11Author: Alexander Stein <alexander.stein@systec-electronic.com>
  12
  13Description
  14-----------
  15
  16The LM95245 is an 11-bit digital temperature sensor with a 2-wire System
  17Management Bus (SMBus) interface and TruTherm technology that can monitor
  18the temperature of a remote diode as well as its own temperature.
  19The LM95245 can be used to very accurately monitor the temperature of
  20external devices such as microprocessors.
  21
  22All temperature values are given in millidegrees Celsius. Local temperature
  23is given within a range of -127 to +127.875 degrees. Remote temperatures are
  24given within a range of -127 to +255 degrees. Resolution depends on
  25temperature input and range.
  26
  27Each sensor has its own critical limit. Additionally, there is a relative
  28hysteresis value common to both critical limits. To make life easier to
  29user-space applications, two absolute values are exported, one for each
  30channel, but these values are of course linked. Only the local hysteresis
  31can be set from user-space, and the same delta applies to the remote
  32hysteresis.
  33
  34The lm95245 driver can change its update interval to a fixed set of values.
  35It will round up to the next selectable interval. See the datasheet for exact
  36values. Reading sensor values more often will do no harm, but will return
  37'old' values.
  38