I'm trying to use the raspberry pi camera with Ekos as guiding camera using a 3D printed adapter and a DSLR lens .

I created the profile using the camera with CCD V4L2 INDI driver and tried to do some test capturing using 4s exposure, but neither disabling the autoexposure, nor setting the value for max exposure I get the camera to wait for that time.

The camera just ignores the exposure setting.

Anyone had tried this and had that problem?

This is an old problem. Check this issue for details: github.com/indilib/indi/issues/281

Thank you for the answer. I will check the problem and see what's the root cause and how to address it

Yes, I had the same problem. I found that the raspi V4L2 driver has a 1 second limitation which is built into the driver itself.