1description: > 2 Implement to provide sensor readings. Objects implementing Sensor.Value 3 must be instantiated in the correct hierarchy within the sensors 4 namespace. The following sensor hierarchies are recognized: 5 airflow 6 altitude 7 current 8 energy 9 fan_tach 10 frequency 11 humidity 12 liquidflow 13 power 14 pressure 15 temperature 16 utilization 17 voltage 18 19 Any service implementing Sensor.Value on one or more objects must implement 20 org.freedesktop.DBus.ObjectManager on /xyz/openbmc_project/sensors. 21 22 All Sensor.Value properties are read-only, unless the 23 xyz.openbmc_project.Sensor.ValueMutability interface is present on the same 24 object path. In that case, refer to the docs for ValueMutability interface. 25 26properties: 27 - name: Value 28 type: double 29 description: > 30 The sensor reading. 31 - name: MaxValue 32 type: double 33 default: infinity 34 description: > 35 The Maximum supported sensor reading. 36 - name: MinValue 37 type: double 38 default: -infinity 39 description: > 40 The Minimum supported sensor reading. 41 - name: Unit 42 type: enum[self.Unit] 43 description: > 44 The unit of the reading. Immutable once set for a sensor. For objects 45 in the airflow namespace, Unit must be "CFM" For objects in the 46 altitude namespace, Unit must be "Meters". For objects in the current 47 namespace, Unit must be "Amperes". For objects in the energy 48 namespace, Unit must be "Joules". For objects in the fan_tach 49 namespace, Unit must be "RPMS". For objects in the humidity namespace, 50 Unit must be "PercentRH" For objects in the power namespace, Unit must 51 be "Watts". For objects in the pressure namespace, Unit must be 52 "Pascals" For objects in the temperature namespace, Unit must be 53 "DegreesC". For objects in the utilization namespace, Unit must be 54 "Percent" For objects in the voltage namespace, Unit must be "Volts", 55 For objects in the liquidflow namespace, Unit must be "LPM". For 56 objects in the frequency namespace, Unit must be "Hertz". 57 58enumerations: 59 - name: Unit 60 description: > 61 A sensor reading unit. 62 values: 63 - name: Amperes 64 description: > 65 Electrical charge flow rate as Amperes. 66 - name: CFM 67 description: > 68 To calculate Air Flow in Cubic Feet per Minute 69 - name: DegreesC 70 description: > 71 Temperature as degrees Celsius. 72 - name: Hertz 73 description: > 74 Frequency in Hertz 75 - name: Joules 76 description: > 77 Energy transfer as Joules. 78 - name: LPM 79 description: > 80 To calculate the liquid flow in Liters Per Minute. 81 - name: Meters 82 description: > 83 Length as meters. 84 - name: Percent 85 description: > 86 Resource utilization as a percentage. 87 - name: PercentRH 88 description: > 89 Relative humidity as a percentage. 90 - name: Pascals 91 description: > 92 Pressure as pascals. 93 - name: RPMS 94 description: > 95 Frequency of rotation as revolutions per minute. 96 - name: Volts 97 description: > 98 Electomotive force as volts. 99 - name: Watts 100 description: > 101 Rate of energy transfer as Watts. 102 103associations: 104 - name: inventory 105 description: > 106 Sensors may implement an 'inventory' to 'sensors' association with the 107 inventory item related to it. 108 reverse_names: 109 - sensors 110 required_endpoint_interfaces: 111 - xyz.openbmc_project.Inventory.Item 112 - name: monitoring 113 description: > 114 Sensors may monitor the BMC's resource utilization and implement an 115 association to the Bmc item. 116 reverse_names: 117 - monitored_by 118 required_endpoint_interfaces: 119 - xyz.openbmc_project.Inventory.Item.Bmc 120 121paths: 122 - namespace: /xyz/openbmc_project/sensors 123 segments: 124 - name: Airflow 125 value: airflow 126 - name: Altitude 127 value: altitude 128 - name: Current 129 value: current 130 - name: Energy 131 value: energy 132 - name: FanTach 133 value: fan_tach 134 - name: Frequency 135 value: frequency 136 - name: Humidity 137 value: humidity 138 - name: Liquidflow 139 value: liquidflow 140 - name: Power 141 value: power 142 - name: Pressure 143 value: pressure 144 - name: Temperature 145 value: temperature 146 - name: Utilization 147 value: utilization 148 - name: Voltage 149 value: voltage 150