2 files changed, 5 insertions, 0 deletions

diff --git a/src/capabilities.c b/src/capabilities.c
index 065c810..1f555f9 100644
--- a/src/capabilities.c
+++ b/src/capabilities.c
@@ -26,6 +26,8 @@
 
 #define ADDCAP(s, c, x) strcat(s, c->has_##x ? " " #x : "")
 
+#define CLICK_AREA(c) ((c->has_ibt ? 0.20 : 0.00) * get_cap_ysize(c))
+
 static const int SN_COORD = 250;        /* coordinate signal-to-noise ratio */
 
 static const int bits_per_long = 8 * sizeof(long);
@@ -102,6 +104,8 @@ int read_capabilities(struct Capabilities *cap, int fd)
                 cap->yfuzz = get_cap_ysize(cap) / SN_COORD;
         }
 
+        cap->yclick = cap->abs_position_y.maximum - CLICK_AREA(cap);
+
         return 0;
 }
 
diff --git a/src/capabilities.h b/src/capabilities.h
index 34c1767..af59384 100644
--- a/src/capabilities.h
+++ b/src/capabilities.h
@@ -41,6 +41,7 @@ struct Capabilities {
         struct input_absinfo abs_position_x;
         struct input_absinfo abs_position_y;
         int xfuzz, yfuzz;
+        int yclick;
 };
 
 int read_capabilities(struct Capabilities *cap, int fd);