I am using the ROCKO distribution of yacto bsp for IMX8M EVK board with default OV5640 camera. I can able to stream the camera with the default ov5640_mipi-v2.ko driver but the default driver does not support the V4L2 camera controls(like brightness, exposure) so i followed this link 1.12. V4L2 Controls — Linux Media Subsystem Documentation documentation and implement the controls. The implemented controls are registered without any error but when i tried to list the supported controls using "v4l2-ctl --list-ctrls" it does not display any controls.
When i tried to set the brightness by using "v4l2-ctl -c brightness=2" it shows unknown control. Is there any sample code or document available means, its really helpful.
Thanks & regards