Equal only by usb paths

[Juniormunk]

This bug would only appear when there are cameras with the same naming. Old config matching would also match using the by-id this was problematic. When one camera is disconnected it would assign the by-id path to the other camera with the
same name. When the camera is replugged in it would not be reassigned the by-id path and would fail the camerainfo equals check.

For example:

Camera A (other paths contains) :
/dev/v4l/by-path/platform-fc800000.usb-usb-0:1:1.0-video-index0
/dev/v4l/by-id/usb-Arducam_Technology_Co.__Ltd._Arducam_OV9782_USB_Camera_UC852-video-index0

Camera B (other paths contains) :
/dev/v4l/by-path/platform-fc880000.usb-usb-0:1:1.0-video-index0

When camera A is unplugged:

Camera A (other paths contains) :
(nothing its unplugged)

Camera B (other paths contains) :
/dev/v4l/by-path/platform-fc880000.usb-usb-0:1:1.0-video-index0
/dev/v4l/by-id/usb-Arducam_Technology_Co.__Ltd._Arducam_OV9782_USB_Camera_UC852-video-index0

When camera A is plugged in again:

Camera A (other paths contains) :
/dev/v4l/by-path/platform-fc800000.usb-usb-0:1:1.0-video-index0

Camera B (other paths contains) :
/dev/v4l/by-path/platform-fc880000.usb-usb-0:1:1.0-video-index0
/dev/v4l/by-id/usb-Arducam_Technology_Co.__Ltd._Arducam_OV9782_USB_Camera_UC852-video-index0

[mcm001]

So by-id is only assigned to one of the two cameras? what the fuck, v4l

[Juniormunk]

seems like it... ¯_(ツ)_/¯

[mcm001]

Can we get a couple unit tests added as well to cover two identical cameras then? Both the unplug one of the two and move it case, and the i have one duplicate and i unplug and plug into the same port?

[mcm001]

Tests look good