Need Help with AUTO EXPOSURE GAIN FOCUS and other camera params tunning manually

Which version of system do you use? Khadas official images, self built images, or others?

owow

need to chnage  auto params to manual control

i have cloned this
git clone GitHub - khadas/external_camera_engine_rkaiq
and built it successfully can run demo however trying to set the value is not working
please guide me whwre i am mising ..