How to get to the GPI trigger signal

I am debugging the four - way camera on the NVIDIA PX2,Serializer is MAX96705, deserializer is MAX9286. Now i want to know which gpio number as the MAX9286 input GPI fsync & when?  because i want to get data from IMU and synchronizing frame data in time, thank you!

There is a digital logic circuit between our SOC and Max9286 to generate the external trigger GPI. The sync signal is not controlled by a GPIO port. So it does not take effect even knowing GPIO number

Thanks. How can i want to know when to trigger the frame synchronization signal on SOC, for example, a callback function or an event. I need the exact time to synchronize IMU data

Hello Jingbin,

have the same issue/question. Have you found a solution?