only access camera with correct serial

[berndpfrommer]

This PR addresses issue #201 related to PR #195.
The hope is that initializing only the camera with the proper serial number will not upset other FLIR cameras served by a different driver.

Could @iag0g0mes please test if this works correctly for your case of multiple interfaces?

[iag0g0mes]

Hello,

This version worked well!

I was wondering if the issue with the last modification was related to adding all detected cameras to the CameraList. I recall reading a recommendation regarding multiple cameras, suggesting that the SDK has some limitations in this area.

Do you think this could be the cause of the unexpected behavior? Perhaps CameraList creates some kind of lock on the devices. I'm not sure, as the documentation isn't very clear on this.

Anyway, thank you very much for your help!

[berndpfrommer]

Thanks much for testing, I will merge this one now.
I believe the problem seen in #201 comes from the init / deinit calls, which are performed on all cameras, not just the one that is supposed to be used. The SDK seems to reset the devices on either one of the calls, which then destroys the associated /dev/video device.