Comment 12 for bug 115743

Here is the solution on Gutsy for my Acer C110:

1) acerhk.ko is included in linux-ubuntu-modules package so you don't need to build from source. You probably already have this installed.
2) Add acerhk to /etc/modules and type "sudo modprobe acerhk"
3) Instead of modifying the asus file as mentioned above, I think it's better to create a new one:
sudo echo "echo 1 > /proc/driver/acerhk/wirelessled" > /etc/acpi/resume.d/60-acer-wireless-led.sh