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rudregues
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Joined: 29 Jan 2013
Posts: 231
Location: Brazil
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 Posted: Thu Apr 23, 2015 10:06 pm Post subject: which /sys/class/hwmon/hwmon*/temp*_input is CPU/GPU etc? |
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I'm setting up my conky bar and come across with a problem to how determine the temperature file of my two cores and my gpu. If I run:
| Code: | watch -n 0.1 cat /sys/class/hwmon/hwmon*/temp*_input
46500
47000
48000
42000 |
Sometimes I have the first and second lines equal, sometimes I have second and third lines equal. The last is always different from the others. I'm not sure, but I thin the last is my GPU temperature, one of the first three are my two cores and the other is something like the mean of the cores or maybe my HDD.
More info:
| Code: | $ ls /sys/class/hwmon
hwmon0 hwmon1 |
-->> Would hwmon0 and hwmon1 be CPU and GPU or CPU and HDD?
hwmon0: | Code: | $ ls /sys/class/hwmon/hwmon0/
name power subsystem temp1_crit temp1_input uevent
$ cat /sys/class/hwmon/hwmon0/name
acpitz |
-->> I think It could represent my GPU or HDD
hwmon1: | Code: | $ ls /sys/class/hwmon/hwmon1/
device power temp1_crit temp1_input temp1_max temp2_crit_alarm temp2_label temp3_crit temp3_input temp3_max
name subsystem temp1_crit_alarm temp1_label temp2_crit temp2_input temp2_max temp3_crit_alarm temp3_label uevent |
| Code: | $ cat /sys/class/hwmon/hwmon1/name
coretemp
$ cat /sys/class/hwmon/hwmon1/temp1_label
Physical id 0
$ cat /sys/class/hwmon/hwmon1/temp2_label
Core 0
$ cat /sys/class/hwmon/hwmon1/temp3_label
Core 1 |
-->> Obviously, temp2 and temp3 refer to my Cores, but what about temp1? Could it be 'a generic' reference of my CPU or could it be my HDD or even GPU?
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rudregues
Apprentice
Joined: 29 Jan 2013
Posts: 231
Location: Brazil
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| Posted: Thu Apr 23, 2015 10:13 pm Post subject: |
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I found a kernel doc about sysfsinterface: | Quote: | Each chip gets its own directory in the sysfs /sys/devices tree. To
find all sensor chips, it is easier to follow the device symlinks from
/sys/class/hwmon/hwmon* |
https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
So, I ran: | Code: | $ ls -l /sys/class/hwmon/hwmon*
lrwxrwxrwx 1 root root 0 Apr 23 16:40 /sys/class/hwmon/hwmon0 -> ../../devices/virtual/hwmon/hwmon0
lrwxrwxrwx 1 root root 0 Apr 23 16:40 /sys/class/hwmon/hwmon1 -> ../../devices/platform/coretemp.0/hwmon/hwmon1 |
Not sure how to interpret this however.
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