Camera on serial_b

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
,
1

Hello,
I’m using AGX Orin Industrial with custom carrier board
I need to stream few video streams simultaneously. I have 6 video decoders adv7282ma. I can easily stream video with v4l2 and create node video0 with adv7282 connected to serial_a port-index = 0x0
but when I want to create node video1 via serial_b port-index=0x01 the drivers probes succesfully (The same dmesg logs like in case with serial_a) the node video1 isn’t appearing. Config is in attachment:
dts.txt (3.4 KB)

Is there anything you can suggest?

4

hello m.puscian,

did you have camera register to system correctly?
you may also share your port bindings of capture-vi and nvcsi for cross checking.

5

Hello,
camera seems to be registered correctly.
Here is nvcsi and capture-vi config:
dts.txt (1.1 KB)

6

hello m.puscian,

FYI,
port bindings looks correct, the issue should be on sensor side, during kernel initialization stage, it’s step for camera device registration to setup a video device node to linux kernel. sensor probing only run once during kernel initialization stage of system boot-up.
for a typical camera application running cycle, the driver will Power On the sensor, Start Sensor Streaming, sending relevant v4l2 controls, and finally power off the sensor.
so… if there’s a error returns, it’ll not register a video node, (i.e. /dev/video1).

BTW,
please see-also Topic 293662 and Topic 290610 to examine camera device registration process.

7

Thank you for the topics, I’ll check them.

so… if there’s a error returns, it’ll not register a video node, (i.e. /dev/video1).

That’s why i’m such confused. There is not even 1 error.

8

Checked it but still no effects

9

hello m.puscian,

did you meant system not even parsing 2nd camera node?
may I know what’s your booting logs in details, i.e. $ dmesg > klogs.txt.

10

Thank you very much for your help. Problem was caused by defective soldering of one connector on carrier board. We found other carrier board and there all 6 cameras works
Kind regards

12

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.