I noticed while inspecting nvcamerasrc that there is a setting called trigger:
trigger: property to fire pre capture trigger flags: readable, writable Enum "GstNvCamCaptureTrigger" Default: 0, "" (1): idle - GST_NVCAM_TRIGGER_IDLE (2): start - GST_NVCAM_TRIGGER_START
How do I use this? Is it a predefined GPIO, or do I have to select one? Right now I’m using one of my cameras to trigger the other, but I’d love to be able to use the TX1 to trigger both at the same time.