Information about different device sensors

Hello,

I am trying to read all the available hardware information on the Nvidia Jetson NX, I wanted to read the current state for example if the device is using DLA cores or not this can be achieved by:

cat /sys/devices/platform/host1x/15880000.nvdla0/power/runtime_usage

But interestingly I found many more such paths:

root@jetson_anomaly_detection:/app# ls -lq /sys/devices/platform/host1x/
drwxr-xr-x   6 root root    0 Mar 31 05:38 14800000.isp
drwxr-xr-x   5 root root    0 Mar 31 05:38 14b00000.isp-thi
drwxr-xr-x   5 root root    0 Mar 31 05:38 15100000.tsecb
drwxr-xr-x   5 root root    0 Mar 31 05:38 15140000.nvdec1
drwxr-xr-x   3 root root    0 Mar 31 05:38 15200000.dc_common
drwxr-xr-x   5 root root    0 Mar 31 05:38 15200000.nvdisplay
drwxr-xr-x   5 root root    0 Mar 31 05:38 15210000.nvdisplay
drwxr-xr-x   6 root root    0 Mar 31 05:38 15340000.vic
drwxr-xr-x   5 root root    0 Mar 31 05:38 15380000.nvjpg
drwxr-xr-x   5 root root    0 Mar 31 05:38 15480000.nvdec
drwxr-xr-x   5 root root    0 Mar 31 05:38 154c0000.nvenc
drwxr-xr-x   5 root root    0 Mar 31 05:38 15500000.tsec
drwxr-xr-x   3 root root    0 Mar 31 05:38 155c0000.dpaux
drwxr-xr-x   3 root root    0 Mar 31 05:38 155d0000.dpaux
drwxr-xr-x   3 root root    0 Mar 31 05:38 155f0000.dpaux
drwxr-xr-x   4 root root    0 Mar 31 05:38 15810000.se
drwxr-xr-x   4 root root    0 Mar 31 05:38 15820000.se
drwxr-xr-x   4 root root    0 Mar 31 05:38 15830000.se
drwxr-xr-x   4 root root    0 Mar 31 05:38 15840000.se
drwxr-xr-x   5 root root    0 Mar 31 05:38 15880000.nvdla0
drwxr-xr-x   5 root root    0 Mar 31 05:38 158c0000.nvdla1
drwxr-xr-x   5 root root    0 Mar 31 05:38 15a00000.nvcsi
drwxr-xr-x   5 root root    0 Mar 31 05:38 15a80000.nvenc1
drwxr-xr-x   3 root root    0 Mar 31 05:38 15b00000.sor
drwxr-xr-x   3 root root    0 Mar 31 05:38 15b40000.sor1
drwxr-xr-x   7 root root    0 Mar 31 05:38 15c10000.vi
drwxr-xr-x   5 root root    0 Mar 31 05:38 16000000.pva0
drwxr-xr-x   5 root root    0 Mar 31 05:38 16800000.pva1
lrwxrwxrwx   1 root root    0 Mar 31 05:38 17000000.gv11b -> ../17000000.gv11b
drwxr-xr-x   4 root root    0 Mar 31 05:38 3960000.tegra_cec

I want to know what each of these hardware corresponds to for example which path is responsible for giving out hardware information when processing audio ? and sam for all other paths what information do they contain?

Also the values are a bit odd for example the GPU usage goes around 207 which after some correlation i found that it’s actually 20.7%.

Where can i find more information about these and what are they lower and upper limits ?

Get TRM from download center to know each devices.

Hi Shane,

Thank you for the information, I am unable to download the reference manual from the provided link.
It asks to accept the terms, but the button seems unresponsive.

I just try without problem.
Maybe try it later or have other PC to try again.

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