Question: how to check if you are using RSUSB or a patched kernel module

[jurc192]

Required Info
Camera Model	D4000
Firmware Version	05.12.06.00
Operating System & Version	Linux
Kernel Version (Linux Only)	(5.4.0)
Platform	PC
SDK Version	2.36.0
Language	python
Segment	others }

Issue Description

Short question: how can we verify if RealSense SDK is using RSUSB or (patched) kernel drivers?

I am trying to compare the performance between the two, compiling the realsense SDK from source on Linux.
Is there a reliable way (sanity-check) to see which of the two is currently being used- rsusb or kernel drivers?

[dorodnic]

Hi @jurc192
We've been planning dedicated API for this for a while, but for now you can look at Physical Port camera info. For V4L2 it would be something...v4l2... while for RSUSB it would be 1-2-3.
With V4L2, you can check if its patched by checking timestamp domain property of a frame.

[RealSenseSupport]

Hi @jurc192 Do you need further help on this? If we don't hear from you in 7 days, this issue will be closed.

[jurc192]

Thanks for your answer!
I can indeed see the difference by checking RealSense Viewer app -> info -> Physical port :)