I've mounted an Arducam 5 MP camera inside a SmartiPi 2 case with the official 7" touchscreen powered by a Pi 4. Unfortunately, when I take a picture or use it as a webcam, the camera appears to be rotated 90˚ to the right. Is there a way to rotate the image at the driver level, or another way to make the image be right-side-up? The primary intention is to use it as a video conferencing device, so post-processing isn't an option.
I have the same setup and same problem. I got my case from Adafruit and the setup instructions at smarticase.com/setup says to do this:
sudo nano /etc/rc.local
then add this right above
It works! What I was missing was the fact that I thought the "412" was a number, when in fact it is the number 4, the lower case letter l, and the number 2! Once I put that in rc.local, all is well.