Hi @bence.lukacs,
If you dont see any driver probe failing or similar, could be that the incorrect dtb or kernel image is loading, not the one with your changes. You can verify it by checking this link, its for nano but the idea is the same. The other thing to try is since you dont see the sensor listed on i2c, it can be a power issue, so for example an enable pin is not up or similar. And lastly list all the i2c busses to verify its not under a different i2c address, thats something that I’ve seen before.
Regards,
Andres
Embedded SW Engineer at RidgeRun
Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com/
Website: www.ridgerun.com