HID: input: add mapping for "Toggle Display" key

According to HUT 1.12 usage 0xb5 from the generic desktop page is reserved
for switching between external and internal display, 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 ecb1b6f268531753b634c53da15de6dd1882087b..da76358cde06fb4f8d01cc76e91ee5627af62db6 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -677,6 +677,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                        break;
                }
 
+               if ((usage->hid & 0xf0) == 0xb0) {      /* SC - Display */
+                       switch (usage->hid & 0xf) {
+                       case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
+                       default: goto ignore;
+                       }
+                       break;
+               }
+
                /*
                 * Some lazy vendors declare 255 usages for System Control,
                 * leading to the creation of ABS_X|Y axis and too many others.