[humble] added OpenDrain to the allowed LineFormat conditions for setLineMode

[alireza-moayyedi]

I am using the a2A4504-18umPRO camera and I want to set the line mode to output. This is doable through the pylon viewer and I have already tested everything in my system and it works fine. However, the wrapper was missing this condition.

[FrancoisPicardDTI]

Hello @alireza-moayyedi
Thank you for your contribution.
I changed a bit the behavior of the setLineMode function. Would you mind testing the PR168_change_setLineMode_behavior branch and tell me if it fits your need?
The LineFormat node is read-only and could be (but must not) used to figure out, if a Line X selected in the LineSelector does support also LineMode= Output (wich is true for Lines 2 and 3), or Input (Line 1) only. The new code should allow now more flexibility.

[alireza-moayyedi]

Hello @FrancoisPicardDTI
Thanks for the changes and sorry for the late reply. I wanted to test it first and get back to you here but unfortunately I do not have access to that specific setup at the time being. Hence I cannot test your changes. If I ever get the chance to test it I will update this thread. Thanks again for looking into it, much appreciated.

[FrancoisPicardDTI]

My pleasure. I am closing it then.

[alireza-moayyedi]

@FrancoisPicardDTI Hello, I finally got the chance to test PR168_change_setLineMode_behavior and it worked perfectly fine:

ros2 service call  /my_camera/pylon_ros2_camera_node/set_line_mode pylon_ros2_camera_interfaces/srv/SetIntegerValue "value: 1" 
waiting for service to become available...
requester: making request: pylon_ros2_camera_interfaces.srv.SetIntegerValue_Request(value=1)

response:
pylon_ros2_camera_interfaces.srv.SetIntegerValue_Response(success=True, message='done')

Thanks for the fix. By the way, I tried to make a PR for your commit on PR168_change_setLineMode_behavior into Humble but unfortunately I got the "Pull request creation failed. Validation failed: must be a collaborator" error. Could you please add it into Humble?