These are ignored by the evdev driver:
gimble:~/xserver-xorg-input-evdev-2.0.99+git20080912$ grep 255 src/evdev.c
if (code > 255 && ev->code < KEY_MAX) {
/* The X server can't handle keycodes > 255 anyway, just drop them. */
Which means they never reach X and therefore cannot be used in anyway.
The only workaround at the minute would be to use input-kdb to remap all keys for an input device to values lower than 255.
Binary package hint: xserver- xorg-input- evdev
package Version: 1:2.0.99+ git20080912- 0ubuntu5
Ubuntu 8.10
Keyboards can use keycodes that go above 255. See http:// lxr.linux. no/linux+ v2.6.28/ include/ linux/input. h
These are often multimedia keys for keyboards and remotes.
These are ignored by the evdev driver: ~/xserver- xorg-input- evdev-2. 0.99+git2008091 2$ grep 255 src/evdev.c
gimble:
if (code > 255 && ev->code < KEY_MAX) {
/* The X server can't handle keycodes > 255 anyway, just drop them. */
Which means they never reach X and therefore cannot be used in anyway.
The only workaround at the minute would be to use input-kdb to remap all keys for an input device to values lower than 255.