libsensors API history
======================

SENSORS_API_VERSION tracks the evolutions made to the libsensors API
over time. This document summarizes these evolutions so that application
authors can quickly figure out how to test for the availability of a
given new feature.

0x440	lm-sensors 3.4.0
* Defined SENSORS_FEATURE_MAX
  enum sensors_feature_type SENSORS_FEATURE_MAX
* Added support for temp min and temp critical min hysteresis
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_MIN_HYST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_LCRIT_HYST

0x432	lm-sensors 3.3.2 to 3.3.5
* Added support for new sysfs attributes
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_AVERAGE
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_LOWEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_HIGHEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_LOWEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_HIGHEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_AVERAGE
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_LOWEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_HIGHEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_FAN_MAX
  enum sensors_subfeature_type SENSORS_SUBFEATURE_FAN_MIN_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_FAN_MAX_ALARM

0x431	lm-sensors 3.3.0 to 3.3.1
* Added support for intrusion detection
  enum sensors_feature_type SENSORS_FEATURE_INTRUSION
  enum sensors_subfeature_type SENSORS_SUBFEATURE_INTRUSION_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_INTRUSION_BEEP
* Added support for various new sysfs attributes
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_LCRIT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_CRIT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_LCRIT_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_IN_CRIT_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_LCRIT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_EMERGENCY
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_EMERGENCY_HYST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_LCRIT_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_TEMP_EMERGENCY_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_CAP
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_CAP_HYST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_MAX
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_CRIT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_CAP_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_MAX_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_CRIT_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_LCRIT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_CRIT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_LCRIT_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_CRIT_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_FAN_PULSES
* Added support for humidity sensors
  enum sensors_feature_type SENSORS_FEATURE_HUMIDITY
  enum sensors_subfeature_type SENSORS_SUBFEATURE_HUMIDITY_INPUT

0x430	lm-sensors 3.2.0
* License changed from GPL to LGPL

0x421	lm-sensors 3.1.2
* Added bus type "hid":
  #define SENSORS_BUS_TYPE_HID

0x420	lm-sensors 3.1.1
* Added a method to free the memory allocated by sensors_parse_chip_name()
  void sensors_free_chip_name(sensors_chip_name *chip);

0x410	lm-sensors 3.1.0
* Added bus type "acpi":
  #define SENSORS_BUS_TYPE_ACPI
* Added support for instantaneous power sensors
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_INPUT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_INPUT_HIGHEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_INPUT_LOWEST
* Added support for current sensors
  enum sensors_feature_type SENSORS_FEATURE_CURR
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_INPUT
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_MIN
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_MAX
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_MIN_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_MAX_ALARM
  enum sensors_subfeature_type SENSORS_SUBFEATURE_CURR_BEEP
* Added error value for excessive recursion depth
  #define SENSORS_ERR_RECURSION 11
* Added parse error reporting function including the configuration file
  name
  extern void (*sensors_parse_error_wfn) (const char *err,
  					  const char *filename, int lineno);

0x401	lm-sensors 3.0.2 to 3.0.3
* Added bus type "virtual":
  #define SENSORS_BUS_TYPE_VIRTUAL
* Added support for power and energy sensors
  enum sensors_feature_type SENSORS_FEATURE_POWER
  enum sensors_feature_type SENSORS_FEATURE_ENERGY
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_AVERAGE
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_AVERAGE_HIGHEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_AVERAGE_LOWEST
  enum sensors_subfeature_type SENSORS_SUBFEATURE_POWER_AVERAGE_INTERVAL
  enum sensors_subfeature_type SENSORS_SUBFEATURE_ENERGY_INPUT

0x400	lm-sensors 3.0.0 to 3.0.1
* Initial API.