Print to the log if we find multitouch axes.

No real effect on the code, but it helps to have that line in the log when
searching for driver issues.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/evdev.c

@@ -1866,6 +1866,7 @@ EvdevProbe(InputInfoPtr pInfo)
 {
     int i, has_rel_axes, has_abs_axes, has_keys, num_buttons, has_scroll;
     int has_lmr; /* left middle right */
+    int has_mt; /* multitouch */
     int ignore_abs = 0, ignore_rel = 0;
     EvdevPtr pEvdev = pInfo->private;
     int rc = 1;
@@ -1899,6 +1900,7 @@ EvdevProbe(InputInfoPtr pInfo)
     has_keys = FALSE;
     has_scroll = FALSE;
     has_lmr = FALSE;
+    has_mt = FALSE;
     num_buttons = 0;
 
     /* count all buttons */
@@ -1966,6 +1968,15 @@ EvdevProbe(InputInfoPtr pInfo)
         }
     }
 
+#ifdef MULTITOUCH
+    for (i = ABS_MT_SLOT; i < ABS_MAX; i++) {
+        if (EvdevBitIsSet(pEvdev->abs_bitmask, i)) {
+            has_mt = TRUE;
+            break;
+        }
+    }
+#endif
+
     if (ignore_abs && has_abs_axes)
     {
         xf86IDrvMsg(pInfo, X_INFO, "Absolute axes present but ignored.\n");
@@ -1974,6 +1985,9 @@ EvdevProbe(InputInfoPtr pInfo)
         xf86IDrvMsg(pInfo, X_PROBED, "Found absolute axes\n");
         pEvdev->flags |= EVDEV_ABSOLUTE_EVENTS;
 
+        if (has_mt)
+            xf86IDrvMsg(pInfo, X_PROBED, "Found absolute multitouch axes\n");
+
         if ((EvdevBitIsSet(pEvdev->abs_bitmask, ABS_X) &&
              EvdevBitIsSet(pEvdev->abs_bitmask, ABS_Y))) {
             xf86IDrvMsg(pInfo, X_PROBED, "Found x and y absolute axes\n");