1 files changed, 7 insertions, 6 deletions

diff --git a/src/capabilities.c b/src/capabilities.c
index a0655c8..7f8a8f7 100644
--- a/src/capabilities.c
+++ b/src/capabilities.c
@@ -38,7 +38,7 @@ int read_capabilities(struct Capabilities *cap, int fd)
         int rc;
 
         memset(cap, 0, sizeof(struct Capabilities));
-        
+
         SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_SYN, sizeof(evbits)), evbits));
         if (rc < 0)
                 return rc;
@@ -52,7 +52,6 @@ int read_capabilities(struct Capabilities *cap, int fd)
         cap->has_left = getbit(keybits, BTN_LEFT);
         cap->has_middle = getbit(keybits, BTN_MIDDLE);
         cap->has_right = getbit(keybits, BTN_RIGHT);
-        cap->has_mtdata = getbit(keybits, BTN_MT_REPORT_PACKET);
 
         SETABS(cap, touch_major, absbits, ABS_MT_TOUCH_MAJOR, fd);
         SETABS(cap, touch_minor, absbits, ABS_MT_TOUCH_MINOR, fd);
@@ -62,6 +61,8 @@ int read_capabilities(struct Capabilities *cap, int fd)
         SETABS(cap, position_x, absbits, ABS_MT_POSITION_X, fd);
         SETABS(cap, position_y, absbits, ABS_MT_POSITION_Y, fd);
 
+        cap->has_mtdata = cap->has_position_x && cap->has_position_y;
+
         return 0;
 }
 
@@ -90,19 +91,19 @@ void output_capabilities(const struct Capabilities *cap)
         if (cap->has_width_major)
                 xf86Msg(X_INFO, "multitouch: width: %d %d\n",
                         cap->abs_width_major.minimum,
-                        cap->abs_width_major.maximum);          
+                        cap->abs_width_major.maximum);
         if (cap->has_orientation)
                 xf86Msg(X_INFO, "multitouch: orientation: %d %d\n",
                         cap->abs_orientation.minimum,
-                        cap->abs_orientation.maximum);          
+                        cap->abs_orientation.maximum);
         if (cap->has_position_x)
                 xf86Msg(X_INFO, "multitouch: position_x: %d %d\n",
                         cap->abs_position_x.minimum,
-                        cap->abs_position_x.maximum);           
+                        cap->abs_position_x.maximum);
         if (cap->has_position_y)
                 xf86Msg(X_INFO, "multitouch: position_y: %d %d\n",
                         cap->abs_position_y.minimum,
-                        cap->abs_position_y.maximum);           
+                        cap->abs_position_y.maximum);
 }
 
 ////////////////////////////////////////////////////////