ADC sensor value is "na" and TempSensor value not update

[noman-kwai]

I added ADC and TMP75 sensors to my BaseBoard.json file just like this:
"Exposes": [ { "Index": 0, "Name": "AUX3V3", "PowerState": "On", "ScaleFactor": 0.28147, "Thresholds": [ { "Direction": "greater than", "Name": "upper critical", "Severity": 1, "Value": 3.96 }, { "Direction": "greater than", "Name": "upper non critical", "Severity": 0, "Value": 3.63 }, { "Direction": "less than", "Name": "lower non critical", "Severity": 0, "Value": 2.97 }, { "Direction": "less than", "Name": "lower critical", "Severity": 1, "Value": 2.64 } ], "Type": "ADC" }, { "Index": 1, "Name": "P1V0", "PowerState": "On", "ScaleFactor": 0.8528, "Thresholds": [ { "Direction": "greater than", "Name": "upper critical", "Severity": 1, "Value": 1.2 }, { "Direction": "greater than", "Name": "upper non critical", "Severity": 0, "Value": 1.1 }, { "Direction": "less than", "Name": "lower non critical", "Severity": 0, "Value": 0.9 }, { "Direction": "less than", "Name": "lower critical", "Severity": 1, "Value": 0.8 } ], "Type": "ADC" }, { "Index": 2, "Name": "P12V", "PowerState": "On", "ScaleFactor": 0.03701, "Thresholds": [ { "Direction": "greater than", "Name": "upper critical", "Severity": 1, "Value": 14.4 }, { "Direction": "greater than", "Name": "upper non critical", "Severity": 0, "Value": 13.2 }, { "Direction": "less than", "Name": "lower non critical", "Severity": 0, "Value": 10.8 }, { "Direction": "less than", "Name": "lower critical", "Severity": 1, "Value": 9.6 } ], "Type": "ADC" }, { "Address": "0x48", "Bus": "4", "Name": "temperature1", "Thresholds": [ { "Direction": "greater than", "Name": "upper critical", "Severity": 1, "Value": 80 }, { "Direction": "greater than", "Name": "upper non critical", "Severity": 0, "Value": 70 }, { "Direction": "less than", "Name": "lower non critical", "Severity": 0, "Value": 5 }, { "Direction": "less than", "Name": "lower critical", "Severity": 1, "Value": 2.5 } ], "Type": "TMP75" }, { "Address": "0x49", "Bus": "4", "Name": "temperature2", "Thresholds": [ { "Direction": "greater than", "Name": "upper critical", "Severity": 1, "Value": 80 }, { "Direction": "greater than", "Name": "upper non critical", "Severity": 0, "Value": 70 }, { "Direction": "less than", "Name": "lower non critical", "Severity": 0, "Value": 5 }, { "Direction": "less than", "Name": "lower critical", "Severity": 1, "Value": 2.5 } ], "Type": "TMP75" }

In BMC, they can be read by cat CMD
ADC::# cat /sys/class/hwmon/hwmon8/in1_input
939
TMP75:# cat /sys/class/hwmon/hwmon6/temp1_input
30750

But use ipmitool to send "sensor list" CMD, it return:
temperature1 | 31.000 | degrees C | ok | na | 3.000 | 5.000 | 70.000 | 80.000 | na temperature2 | 30.000 | degrees C | ok | na | 3.000 | 5.000 | 70.000 | 80.000 | na AUX3V3 | na | Volts | na | na | 2.635 | 2.962 | 3.639 | 3.966 | na P1V0 | na | Volts | na | na | 0.797 | 0.896 | 1.104 | 1.204 | na P12V | na | Volts | na | na | 9.550 | 10.887 | 13.179 | 14.325 | na
ADC sensor value is "na"
TempSensor value is ok but not update.

I found some errors by "journalctl | grep hwmon" CMD:

kernel: lm75 4-0048: hwmon6: sensor 'tmp75' kernel: lm75 4-0049: hwmon7: sensor 'tmp75' hwmontempsensor[266]: error getting SpecialMode status No route to host hwmontempsensor[266]: Error calling mapper hwmontempsensor[266]: failed to find match for 4-0048 hwmontempsensor[266]: failed to find match for 4-0049 adcsensor[264]: failed to find match for /sys/class/hwmon/hwmon8/in3_input adcsensor[264]: failed to find match for /sys/class/hwmon/hwmon8/in1_input adcsensor[264]: failed to find match for /sys/class/hwmon/hwmon8/in2_input

Is there some configuration missing or operation error ？

I‘m a beginner of openbmc, Please give me some advice.

Thank you!

[Kostr]

Do ADC sensors have value or na on the webui sensors page?

I've also noticed, that you've added "PowerState": "On" to your ADC sensors. The affect of this is that the sensors are not checked if the main host is not powered on. Was the host on or off when you've executed the ipmitool sensor command?

And it is very hard to see anything from your output, I suggest you to properly format it.

[noman-kwai]

Thanks for your reply.

Do ADC sensors have value or na on the webui sensors page?

ADC sensors value is also na on the webui.

I've also noticed, that you've added "PowerState": "On" to your ADC sensors. The affect of this is that the sensors are not checked if the main host is not powered on. Was the host on or off when you've executed the ipmitool sensor command?

The host was off.
Now I comment out the "PowerState": "On" line, ADC sensors work fine.
But TempSensors still can't update the value,it remains the value when BMC PowerOn.Is it also because the configuration statement of the json file is incorrect.Where I can find more Docs

And it is very hard to see anything from your output, I suggest you to properly format it.

Thank you for your advice. I am not familiar with the usage yet, and I will pay attention to the format later.

[Kostr]

The data from the /sys/class/hwmon/hwmonX/tempY_input file should be the same as the sensor value in the ipmitool/webui output.

• If they are not the same, you are probably looking at the wrong /sys/class/hwmon/hwmonX/tempY_input file
• If they are the same, and the value does not change, then I guess the real tempreature doesn't change. What makes you think that the mesaurement should change its value?

[noman-kwai]

The data from the /sys/class/hwmon/hwmonX/tempY_input file should be the same as the sensor value in the ipmitool/webui output.

• If they are not the same, you are probably looking at the wrong /sys/class/hwmon/hwmonX/tempY_input file
• If they are the same, and the value does not change, then I guess the real tempreature doesn't change. What makes you think that the mesaurement should change its value?

Yes, they are the same. When BMC work, I turned off the fan, the value will must be higher than first read, but it still keep the original data.

[Kostr]

Are you sure that this fan cools this particular TMP75 ?

You've said

But TempSensors still can't update the value,it remains the value when BMC PowerOn

You can check this theory.
Unplug your fan, wait some time time to be sure, that the value doesn't change. If that is the case, without plugging the fan back, you can reboot bmc, and check that on the next boot the sensor value is way higher. Is that is case?

[noman-kwai]

Are you sure that this fan cools this particular TMP75 ?

Yse, I'm sure.

You can check this theory.
Unplug your fan, wait some time time to be sure, that the value doesn't change. If that is the case, without plugging the fan back, you can reboot bmc, and check that on the next boot the sensor value is way higher. Is that is case?

I tried this theory, the next boot sensor value not change anymore.
Is it because the sensor drive is not working properly?