To be more clear, right now the volume and brightness keys are used and I have to hold 'fn' in order to execute an F1, F2, F3, F4, F5... command. Can I reverse this so it's function key by default and holding 'fn' enables the volume and other special controls?
This is described on the Ubuntu Community Wiki:
You can try:
sudo bash -c "echo 2 > /sys/module/hid_apple/parameters/fnmode"
If it works you can change this permanently (per the linked wiki page):
echo options hid_apple fnmode=2 | sudo tee -a /etc/modprobe.d/hid_apple.conf sudo update-initramfs -u -k all sudo reboot # optional
KBDMode = fkeysfirst
PBButtonsd works on iBooks and PowerBooks (PowerPC-based) and MacBooks (Intel-based); the native Ubuntu package seems to have disappeared after Dapper Drake