[Q] GPS module source code topic

Hi all,

for my project I need to change the way how gps works. It was told me gps-manager enable/disable gps sensor. Idea would be to recompile my own customized version for gear s and install on the device. I have started by dowloading opensource from samsung site. Inside I have not found anything related to gps module.
Do you have any idea how to do it?

Thank you.
Luke