Hi, i experiment issue with basic uvc usb3.0 cameras.if i plug them on the usb2 port, i get them working …at usb2 speed.
When i plug them on usb3 ports, they simply don’t show up. another type of camera such as Flir is ok in USB3 on lsusb on the VIM4, the port is working.
it seems to be related to some software issue.
Does anyone has already used an uvc device on the USB3 port of the vim4.If yes, on which OS? and was it needed to make some software setup.
thanks all!
@bertrand_HAHN
I don’t have a USB 3.0 camera, so I can’t verify it at the moment. Based on the information you provided earlier, it seems that the USB 3.0 communication on your board is abnormal (probably the board is abnormal).
Hello, many thanks to trying to find a solution. happy to see that it is not a software issue or something.I doesn’t help but it closes some doors!!
maybe the issue is related to my board version: i’ve the old one:
could you please verify you made the test on the new one, or push one step further (now you have the camera:)) to test on both basic and new version.
Somewhere on the forum, someone is reporting same issues solved by a new board version.
many thanks for your concerns, this is why i push for vim boards to my teams.but i need the usb3 uvc… Thanks!!
Hello, sorry to anoying you but please do the v4l test:
sudo apt get install v4l2-utils
and
v4l2-ctl --list-devices
I really need to be sure that it is related to the basic VIM4, and it goes ok on the VIM4-NPU
if you can see the UVC camera on /dev/video0 device, it is fine perfect!
many thanks for the time spent. if it works on the NPU and not on the BASIC, it can be earable.
some people are speaking the fact that wifi is perturbating the USB3 bus. i don’t know if it is relevant.
Also, i don’t really understand the overlay, maybe there is a device to activate?
Or maybe the kernel was’nt built with UVC or V4L support?
There is plenty of things that i don’t even understand, this is why the simple fact that /dev/video0 is present on VIM4-NPU will do the job for me!
Yes i was really not convinced, even if i tried to shut down the wifi…
anyway.I’m waiting for the VIM4-NPU v42ctl device list to see if uvc is effectivelly ok on this new boad to purshase one.
Regards
Hello Sir, glad to see the solution coming…and yes, you make it real, the video0 device is now seen under usb3. v4l2-cnt commands are working and the UVC cameras are now able to provide USB3 speeds:
CORRECTION, GSTREAMER IS DEFINITLY WORKING Side quest, on this ubuntu image, gstreamer is bad, there is some conflicting versions issue, here what i did to fix:
When you remove gstreamer, you also remove the destop.Before this, not even the videotestsrc was working and the v4l2src was giving some permission and buffer errors.(even on usb2)
In all cases, i want to say that we are very satisfyed with khadas team who took care of the issue and fixed it, yes UVC is a part of base linux distribution and it need to work, but they made the job of getting it ok on the VIM4basic.