hotfix - return delay time is changed from 4 into 8 due to the Ubuntu update 16.04.2 kernel? issues

c++/src/dynamixel_sdk_linux/port_handler_linux.cpp

@@ -42,7 +42,7 @@
 
 #include "dynamixel_sdk_linux/port_handler_linux.h"
 
-#define LATENCY_TIMER   4  // msec (USB latency timer)
+#define LATENCY_TIMER   8  // msec (USB latency timer) [was changed from 4 due to the Ubuntu update 16.04.2]
 
 using namespace dynamixel;
 

c/src/dynamixel_sdk_linux/port_handler_linux.c

@@ -43,7 +43,7 @@
 
 #include "dynamixel_sdk_linux/port_handler_linux.h"
 
-#define LATENCY_TIMER   4  // msec (USB latency timer)
+#define LATENCY_TIMER   8  // msec (USB latency timer) [was changed from 4 due to the Ubuntu update 16.04.2]
 
 typedef struct
 {

ros/src/port_handler_linux.cpp

@@ -42,7 +42,7 @@
 
 #include "dynamixel_sdk/port_handler_linux.h"
 
-#define LATENCY_TIMER   4  // msec (USB latency timer)
+#define LATENCY_TIMER   8  // msec (USB latency timer) [was changed from 4 due to the Ubuntu update 16.04.2]
 
 using namespace dynamixel;