On my Lenovo IdeaPad Yoga 2 Pro on Windows, there is a function available `Fn`+`F6` that should **turn the touchpad on and off** (I would like to map the correct key to [the script here on askubuntu](https://askubuntu.com/a/446125/34298)).

But on Linux, it doesn't work.

How can I find out the event keycode that it emmits when I press this combination?

I tried `showkey -a`, `showkey -k` and `xev` which both shows most keys codes when pressed, but at `Fn`+`F6` they stay quiet. The other `Fn`+`F1-F5` show output, only `F6` doesn't, although it works on Windows. What other **alternatives** are there to `xev` and `showkey`?

The only hint i found so far is:

```
grep TOUCHPAD /usr/include/linux/input.h

#define KEY_TOUCHPAD_TOGGLE 0x212   /* Request switch touchpad on or off */
#define KEY_TOUCHPAD_ON     0x213
#define KEY_TOUCHPAD_OFF    0x214

```

*source: comment in <https://askubuntu.com/a/270428/34298> with link to [this article](http://jablonskis.org/2012/linux-and-samsung-series-laptop-9-fn-keys/)*

Maybe someone has an idea?