[RFC PATCH] input: Add "AI Assistant" key

[Peter Hutterer <peter.hutterer@who-t.net>]

Not to be confused with KEY_ASSISTANT which is for Siri/Cortana/...,
this one is the Copilot key.

Unfortunately Microsoft requires that the Copilot key sends
Win+Shift+F23 so this is merely a placeholder for now. Eventually we
may see hardware that actually sends a custom key code for this.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
Note: this is really just an RFC, happy to change the name (which is not
great given we have KEY_ASSISTANT already), the value, anything. The
purpose of this patch is simply to scope if this is something worth
pursuing.

As above, because of the MS specs I don't see any (MS-compatible) HW
sending that particular key in the immediate future. But since userspace
is expected to implement the functionality via the Win+Shift+F23 we'll
need a new keysym for this in XKB anyway.

If the kernel plans to add a keysym for this we can happily re-use that,
otherwise we'll need to define our own but that means some manual
attention if we do get a kernel keycode later.

Thoughts?

 include/uapi/linux/input-event-codes.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index a4206723f503..99c5e866e627 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -806,6 +806,8 @@
 #define BTN_TRIGGER_HAPPY39		0x2e6
 #define BTN_TRIGGER_HAPPY40		0x2e7
 
+#define KEY_AI_ASSISTANT                0x2f0
+
 /* We avoid low common keys in module aliases so they don't get huge. */
 #define KEY_MIN_INTERESTING	KEY_MUTE
 #define KEY_MAX			0x2ff
-- 
2.47.0