This is an updated kernel module to fix touchpad detection on the Ryzen Ideapad 330.
Builds on Mint 18 (kernel 4.4) and 19 (kernel 4.15).

To download and install, run this in a terminal:

git clone https://www.github.com/Jookia/elan_i2c_dkms
cd elan_i2c_dkms
sudo dkms install .

Then reboot your machine.