Pins used by Doubleplexer Stereo Module V2?


I’ve searched all of the documentation I can find for the Arducam Doubleplexer Stereo Module V2 but I can’t find a list of which pins on the 40pin header are actually used by the Arducam adapter. I want to use the other GPIO pins for LEDs and Switches

From looking at the PCB it seems the device uses the following

1 3v3 power
3 L2C1 SDA / GPIO 2
5 L2C1 SCL / GPIO 3
7 GPIO 4
11 GPIO 17
17 3v3 Power

Is this all that is used, or does it use more pins that I can’t see ?

Thank you