linux/Documentation/hwmon/ltc4215
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   1Kernel driver ltc4215
   2=====================
   3
   4Supported chips:
   5  * Linear Technology LTC4215
   6    Prefix: 'ltc4215'
   7    Addresses scanned: 0x44
   8    Datasheet:
   9        http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1006,C1163,P17572,D12697
  10
  11Author: Ira W. Snyder <iws@ovro.caltech.edu>
  12
  13
  14Description
  15-----------
  16
  17The LTC4215 controller allows a board to be safely inserted and removed
  18from a live backplane.
  19
  20
  21Usage Notes
  22-----------
  23
  24This driver does not probe for LTC4215 devices, due to the fact that some
  25of the possible addresses are unfriendly to probing. You will have to
  26instantiate the devices explicitly.
  27
  28Example: the following will load the driver for an LTC4215 at address 0x44
  29on I2C bus #0:
  30$ modprobe ltc4215
  31$ echo ltc4215 0x44 > /sys/bus/i2c/devices/i2c-0/new_device
  32
  33
  34Sysfs entries
  35-------------
  36
  37The LTC4215 has built-in limits for overvoltage, undervoltage, and
  38undercurrent warnings. This makes it very likely that the reference
  39circuit will be used.
  40
  41in1_input               input voltage
  42in2_input               output voltage
  43
  44in1_min_alarm           input undervoltage alarm
  45in1_max_alarm           input overvoltage alarm
  46
  47curr1_input             current
  48curr1_max_alarm         overcurrent alarm
  49
  50power1_input            power usage
  51power1_alarm            power bad alarm
  52
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