(zedx, zedxm)While trying to determine how many cameras were detected using the 'v4l2-ctl --list-devices' command, I encountered a bug.

[sdk17586]

Preliminary Checks

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• This issue is not a question, feature request, or anything other than a bug report directly related to this project.

Description

While trying to determine how many cameras were detected using the 'v4l2-ctl --list-devices' command, I encountered a bug.
I have connected two ZED-X and two ZED-XM cameras.

trdv@ubuntu:~$ v4l2-ctl --list-devices
NVIDIA Tegra Video Input Device (platform:tegra-camrtc-ca):
/dev/media0

vi-output, zedx 30-0010 (platform:tegra-capture-vi:0):
/dev/video0

This is the result that appeared.

However, when two were connected, this is the result that appeared.

NVIDIA Tegra Video Input Device (platform:tegra-camrtc-ca):
/dev/media0

vi-output, zedx 30-0018 (platform:tegra-capture-vi:0):
/dev/video0
/dev/video1

vi-output, zedx 31-0018 (platform:tegra-capture-vi:1):
/dev/video2
/dev/video3

This is the result that appeared.
Is it not possible to connect up to four ZED-X cameras to the Jetson?

I created the following launch file in the zed_wrapper package to simultaneously operate ZED-X and ZED-XM cameras.

<!-- First camera -->
<group ns="zedx_0">
    <include file="$(find zed_wrapper)/launch/include/zed_camera.launch.xml">
        <arg name="camera_name"      value="zedx_0" />
        <arg name="svo_file"         value="$(arg svo_file)" />
        <arg name="stream"           value="$(arg stream)" />
        <arg name="node_name"        value="$(arg node_name)" />
        <arg name="camera_model"     value="zedx" />
        <arg name="base_frame"       value="$(arg base_frame)" />
        <arg name="camera_id"        value="0" />
        <arg name="publish_urdf"     value="$(arg publish_urdf)" />
        <arg name="cam_pos_x"        value="$(arg cam_pos_x)" />
        <arg name="cam_pos_y"        value="$(arg cam_pos_y)" />
        <arg name="cam_pos_z"        value="$(arg cam_pos_z)" />
        <arg name="cam_roll"         value="$(arg cam_roll)" />
        <arg name="cam_pitch"        value="$(arg cam_pitch)" />
        <arg name="cam_yaw"          value="$(arg cam_yaw)" />
    </include>
</group>

<!-- Second camera -->
<group ns="zedx_1">
    <include file="$(find zed_wrapper)/launch/include/zed_camera.launch.xml">
        <arg name="camera_name"      value="zedx_1" />
        <arg name="svo_file"         value="$(arg svo_file)" />
        <arg name="stream"           value="$(arg stream)" />
        <arg name="node_name"        value="$(arg node_name)" />
        <arg name="camera_model"     value="zedxm" />
        <arg name="base_frame"       value="$(arg base_frame)" />
        <arg name="camera_id"        value="1" />
        <arg name="publish_urdf"     value="$(arg publish_urdf)" />
        <arg name="cam_pos_x"        value="$(arg cam_pos_x)" />
        <arg name="cam_pos_y"        value="$(arg cam_pos_y)" />
        <arg name="cam_pos_z"        value="$(arg cam_pos_z)" />
        <arg name="cam_roll"         value="$(arg cam_roll)" />
        <arg name="cam_pitch"        value="$(arg cam_pitch)" />
        <arg name="cam_yaw"          value="$(arg cam_yaw)" />
    </include>
</group>

Steps to Reproduce

1. v4l2-ctl --list-devices

...

Expected Result

error

Actual Result

error

ZED Camera model

ZED2

Environment

ubunto 18.04

Anything else?

No response

[Myzhar]

Duplicated (forum cross-posting) and not ROS-related.