Add set slot by touch id utility

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/utouch/frame.h b/include/utouch/frame.h
index 5b5f4d2..03a44aa 100644
--- a/include/utouch/frame.h
+++ b/include/utouch/frame.h
@@ -250,6 +250,17 @@ struct utouch_contact *utouch_frame_get_current_slot(utouch_frame_handle fh);
 int utouch_frame_set_current_slot(utouch_frame_handle fh, int slot);
 
 /**
+ * utouch_frame_set_current_id - set the current slot by touch id
+ * @fh: the frame engine in use
+ * @id: the touch id
+ *
+ * Sets the slot currently being modified, by touch id. If the id is
+ * not currently in use (does not have an active slot), a new slot is
+ * assigned. Returns zero if successful, negative error otherwise.
+ */
+int utouch_frame_set_current_id(utouch_frame_handle fh, int id);
+
+/**
  * utouch_frame_sync - synchronize and return new frame
  * @fh: the frame engine in use
  * @time: the frame synchronization time (ms)