Hi,

I installed Debian on my Macbook several months ago and I'm still trying to tweak things. I noticed that Debian's Wiki on the topic has gained the following instructions:

If you want the touchpad being usable with synaptics add these lines to a file in /etc/modprobe.d/

Code:
install usbhid /sbin/modprobe appletouch; /sbin/modprobe --ignore-install usbhid $CMDLINE_OPTS
Then add appletouch to /etc/initramfs-tools/modules and then don't forget to run update-initramfs.
I tried this and still can't get it to work. What does it mean by "add these lines to a file in /etc/modprobe.d/"? Does it mean any file will work? (I created a new file containing the line.)

Can someone explain what these two changes are actually doing?