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authorJeff Brown <jeffbrown@google.com>2011-04-12 23:29:38 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2011-04-12 23:35:24 -0700
commit9fb0f14e31b6101a0cc69a333b43541044f9b0a6 (patch)
treea384acf387f5dff50e0c3a56fa54336dedd286c5 /include/linux
parentb1e064b81e238d47cb56544b34c9baf473e09837 (diff)
Input: evdev - indicate buffer overrun with SYN_DROPPED
Add a new EV_SYN code, SYN_DROPPED, to inform the client when input events have been dropped from the evdev input buffer due to a buffer overrun. The client should use this event as a hint to reset its state or ignore all following events until the next packet begins. Signed-off-by: Jeff Brown <jeffbrown@android.com> [dtor@mail.ru: Implement Henrik's suggestion and drop old events in case of overflow.] Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/input.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h
index 0cc25e4ce2ab..73a8c6ee595b 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -167,6 +167,7 @@ struct input_keymap_entry {
#define SYN_REPORT 0
#define SYN_CONFIG 1
#define SYN_MT_REPORT 2
+#define SYN_DROPPED 3
/*
* Keys and buttons