Show current values and ranges for EV_ABS type inputs

When printing identification information about evdev device node,
current value is shown for supported ABS_XXX event types.

[evdev_trace] Show current values and ranges for EV_ABS type inputs

evdev.c

@@ -319,11 +319,30 @@ int evdev_identify_device(int fd)
         const char *tag = evdev_get_event_code_name(etype, ecode);
 	int set = bit_is_set(bmap_stat, ecode);
         int add = strlen(tag) + 1 + set;
+	char val[32] = "";
+
+
+	if( etype == EV_ABS )
+	{
+	  struct input_absinfo info;
+	  memset(&info, 0, sizeof info);
+
+	  if( ioctl(fd, EVIOCGABS(ecode), &info) == -1 )
+	  {
+	    mce_log(LL_ERR, "EVIOCGABS(%s): %m", tag);
+	  }
+	  else
+	  {
+	    snprintf(val, sizeof val, "=%d [%d,%d]", info.value, info.minimum, info.maximum);
+	    add += strlen(val);
+	  }
+	}
 
         if( len == 0 ) printf("\t");
         else if( len+add > cols ) printf("\n\t"), len = 0;
 
-        len += add, printf(" %s%s", tag, set ? "*" : "");
+        len += add, printf(" %s%s%s", tag, set ? "*" : "", val);
+
       }
     }
     if( len ) printf("\n");