Samsung notebooks have a FN LOCK key. It works like CAPS LOCK or NUM
LOCK keys.
When FN LOCK key is pressed, any further press to a key with a blue label
on it (Fn keys) will produce the alternate code.
Another press makes the keyboard to return to its normal state.
On the notebooks where such feature were found, a FN LOCK on event
produces scancode 0xa8, and a FN LOCK off event produces scancode 0xa9.
Yet, it is better to reserve some space at the keymap to allow some
different implementation of this feature where the same keycode might
be used.
Also, as this is actually a switch, add a switch indicator to report
when this switch is set/reset.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
---
include/uapi/linux/input.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index d584047..4622c34 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -716,6 +716,10 @@ struct input_keymap_entry {
#define BTN_DPAD_LEFT 0x222
#define BTN_DPAD_RIGHT 0x223
+#define KEY_FNLOCK_TOGGLE 0x224 /* Request switch Fn on or off */
+#define KEY_FNLOCK_ON 0x225
+#define KEY_FNLOCK_OFF 0x226
+
#define BTN_TRIGGER_HAPPY 0x2c0
#define BTN_TRIGGER_HAPPY1 0x2c0
#define BTN_TRIGGER_HAPPY2 0x2c1
@@ -853,6 +857,7 @@ struct input_keymap_entry {
#define SW_FRONT_PROXIMITY 0x0b /* set = front proximity sensor active */
#define SW_ROTATE_LOCK 0x0c /* set = rotate locked/disabled */
#define SW_LINEIN_INSERT 0x0d /* set = inserted */
+#define SW_FNLOCK 0x0e /* set = Fn locked */
#define SW_MAX 0x0f
#define SW_CNT (SW_MAX+1)
--
1.8.3.1
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