Input: sparse-keymap - report scancodes with key events

Scancodes are useful debugging aids when incorrect keycodes
are being sent, as is common with laptop hotkeys.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index 337bf51bc984..74bca5d2f6dc 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -208,6 +208,11 @@ int sparse_keymap_setup(struct input_dev *dev,
                 }
         }
 
+        if (test_bit(EV_KEY, dev->evbit)) {
+                __set_bit(EV_MSC, dev->evbit);
+                __set_bit(MSC_SCAN, dev->mscbit);
+        }
+
         dev->keycode = map;
         dev->keycodemax = map_size;
         dev->getkeycode = sparse_keymap_getkeycode;
@@ -268,6 +273,7 @@ void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *k
 {
         switch (ke->type) {
         case KE_KEY:
+                input_event(dev, EV_MSC, MSC_SCAN, ke->code);
                 input_report_key(dev, ke->keycode, value);
                 input_sync(dev);
                 if (value && autorelease) {