QMK defines Hyper as Ctrl+Shift+Alt+GUI.

XFCE4 is treating my Left super as Hyper, which also happens to be the key that was configured as Hyper in xmodmap when the shortcut was defined.

Emacs doesn't treat QMK's Hyper as equivalent to the Hyper that can be generated in Emacs.

Is there a "hardware definition" for the Hyper that Emacs uses?

1 Answer 1


Looks like it isn't defined.


Hyper is all on the OS's side - I don't think there's any way to map it natively, but you can stick in KC_MENU or something similar to be redefined in xmodmap or the equivalent for your distro.

http://www.usb.org/developers/hidpage/Hut1_12v2.pdf Page ~58. No reference to hyper in here.

I've had a look through the file /usr/include/linux/input.h and it's include, and it doesn't look like there is any reference to hyper in there.

XFree86 keycode:

// Other codes never generated.  The XFree86 ddx never generates
// these codes.
// Thus we can use them as fake keys
<HYPR> =   128; // <U80>

So I guess it's a fake key implemented at one of the keyboard layers after the fact. I think it's xfree86 (X.org) layer, but I'm not sure.


it's not part of the USB HID, so it's impossible to generate directly. Regardless, this can be closed.

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