[PATCH 2/2] Input: sparse-keymap - report KEY_UNKNOWN for unknown scan codes
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STALE5675d
From: Seth Forshee <hidden>
Date: 2011-03-23 21:17:25
Also in:
lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
This allows for debugging non-functional keys easily from userspace. Signed-off-by: Seth Forshee <redacted> --- 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 74bca5d..744980e 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, autorelease); + return false; } EXPORT_SYMBOL(sparse_keymap_report_event);
--
1.7.4.1