The greatest feature however, and it's stand-out point is the wheel. The wheel can change from a click-wheel to a free wheel. By default in Linux (no special drivers loaded) The wheel button itself changes this behaviour, which means you don't have a middle-button (button 2). If you use this for Firefox tabs, or pasting, you will find this a real pain!
Windows users get an extra feature: Depending on how fast you scroll the wheel, the click-scroll will automatically disable, allowing the wheel to free spin for quite a few seconds. When it stops, the click-feature automatically sets back in. You can hear this with a small "clunk". Logitech claims this is great for navigating very large documents quickly. I like it because I like watching shiny things spin :)
I assumed I would be left without this in Linux however, as weird Windows driver stuff is usually not available. Think again! Thanks to Some Guy there is a program called revoco to control it. Petteri Räty (betelgeuse) has created an ebuild for Gentoo. Follow his instructions, and be sure to read the comments, as you will find some useful info there. I had to do the following:
- Edit revoco-0.3.c and change the value of #define MX_REVOLUTION to the value you get for you mouse from `lsusb`. Mine is c525.
- The auto setting was a bit whacko by default - the solenoid was clicking on and off without even moving the wheel. This worked:
$ sudo revoco auto=10
- Setting the manual click change to button "6" (find button) gives you the middle click (button 2) back *woot*
$ sudo revoco manual=6
and also gets rid of that annoying "search" keyevent which I have a keyboard for :)
- But unfortunately, when I set the manual=6 option, the auto scroll feature turns off again :| But that's a small price to pay!