diff options
| author | Seth Forshee <seth.forshee@canonical.com> | 2011-03-26 22:53:34 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-03-28 23:34:52 -0700 |
| commit | 170531bae648c0ef8d56b44dc5bd8d67717b0db9 (patch) | |
| tree | 192747c6e6a7a44f1e0c11513552ff3ec0ba529c /drivers/input/sparse-keymap.c | |
| parent | f3cf5c4fedbe13880cd80a9fa1aebae79ebef20e (diff) | |
Input: sparse-keymap - report KEY_UNKNOWN for unknown scan codes
This allows for debugging non-functional keys easily from
userspace.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/sparse-keymap.c')
| -rw-r--r-- | drivers/input/sparse-keymap.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c index 74bca5d2f6dc..fdb6a3976f94 100644 --- a/drivers/input/sparse-keymap.c +++ b/drivers/input/sparse-keymap.c @@ -209,6 +209,7 @@ int sparse_keymap_setup(struct input_dev *dev, } if (test_bit(EV_KEY, dev->evbit)) { + __set_bit(KEY_UNKNOWN, dev->keybit); __set_bit(EV_MSC, dev->evbit); __set_bit(MSC_SCAN, dev->mscbit); } @@ -311,12 +312,19 @@ bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code, { const struct key_entry *ke = sparse_keymap_entry_from_scancode(dev, code); + struct key_entry unknown_ke; if (ke) { sparse_keymap_report_entry(dev, ke, value, autorelease); return true; } + /* Report an unknown key event as a debugging aid */ + unknown_ke.type = KE_KEY; + unknown_ke.code = code; + unknown_ke.keycode = KEY_UNKNOWN; + sparse_keymap_report_entry(dev, &unknown_ke, value, true); + return false; } EXPORT_SYMBOL(sparse_keymap_report_event); |