linux/Documentation/hwmon/max1668
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   1Kernel driver max1668
   2=====================
   3
   4Supported chips:
   5  * Maxim MAX1668, MAX1805 and MAX1989
   6    Prefix: 'max1668'
   7    Addresses scanned: I2C 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e
   8    Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX1668-MAX1989.pdf
   9
  10Author:
  11    David George <david.george@ska.ac.za>
  12
  13Description
  14-----------
  15
  16This driver implements support for the Maxim MAX1668, MAX1805 and MAX1989
  17chips.
  18
  19The three devices are very similar, but the MAX1805 has a reduced feature
  20set; only two remote temperature inputs vs the four avaible on the other
  21two ICs.
  22
  23The driver is able to distinguish between the devices and creates sysfs
  24entries as follows:
  25
  26MAX1805, MAX1668 and MAX1989:
  27
  28temp1_input     ro local (ambient) temperature
  29temp1_max       rw local temperature maximum threshold for alarm
  30temp1_max_alarm ro local temperature maximum threshold alarm
  31temp1_min       rw local temperature minimum threshold for alarm
  32temp1_min_alarm ro local temperature minimum threshold alarm
  33temp2_input     ro remote temperature 1
  34temp2_max       rw remote temperature 1 maximum threshold for alarm
  35temp2_max_alarm ro remote temperature 1 maximum threshold alarm
  36temp2_min       rw remote temperature 1 minimum threshold for alarm
  37temp2_min_alarm ro remote temperature 1 minimum threshold alarm
  38temp3_input     ro remote temperature 2
  39temp3_max       rw remote temperature 2 maximum threshold for alarm
  40temp3_max_alarm ro remote temperature 2 maximum threshold alarm
  41temp3_min       rw remote temperature 2 minimum threshold for alarm
  42temp3_min_alarm ro remote temperature 2 minimum threshold alarm
  43
  44MAX1668 and MAX1989 only:
  45temp4_input     ro remote temperature 3
  46temp4_max       rw remote temperature 3 maximum threshold for alarm
  47temp4_max_alarm ro remote temperature 3 maximum threshold alarm
  48temp4_min       rw remote temperature 3 minimum threshold for alarm
  49temp4_min_alarm ro remote temperature 3 minimum threshold alarm
  50temp5_input     ro remote temperature 4
  51temp5_max       rw remote temperature 4 maximum threshold for alarm
  52temp5_max_alarm ro remote temperature 4 maximum threshold alarm
  53temp5_min       rw remote temperature 4 minimum threshold for alarm
  54temp5_min_alarm ro remote temperature 4 minimum threshold alarm
  55
  56Module Parameters
  57-----------------
  58
  59* read_only: int
  60  Set to non-zero if you wish to prevent write access to alarm thresholds.
  61
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