HID: input: add mapping for Expose/Overview key

According to HUTRR77 usage 0x29f from the consumer page is reserved for
the Desktop application to present all running user’s application windows.
Linux defines KEY_SCALE to request Compiz Scale (Expose) mode, so let's
add the mapping.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index def58c6..5f800e7 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1030,6 +1030,8 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT);   break;
                case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL);   break;
 
+               case 0x29f: map_key_clear(KEY_SCALE);           break;
+
                default: map_key_clear(KEY_UNKNOWN);
                }
                break;