How do I install a driver provided as source code?

Solution 1:

Open a terminal with Ctrl+Alt+T
Install the build-essential package with:
```
sudo apt-get install build-essential
```
Change the directory to the extracted driver folder; suppose it's under your home directory as Downloads/driversource, with:
```
cd ~/Downloads/driversource
```
Type make && sudo make install

This should build and install the driver. You will probably need to reboot to activate the installed driver.