diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index c4fb7f95..15cf79fe 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,12 @@
 lib_xua Change Log
 ==================
 
+1.1.0
+-----
+
+
+  * ADDED:     Ability to read or modify serial number string
+
 1.0.1
 -----
 
diff --git a/lib_xua/api/xua_endpoint0.h b/lib_xua/api/xua_endpoint0.h
index 60f68bf3..2cebd564 100644
--- a/lib_xua/api/xua_endpoint0.h
+++ b/lib_xua/api/xua_endpoint0.h
@@ -62,6 +62,16 @@ void XUA_Endpoint0_setProductStr(char * unsafe product_str);
 void XUA_Endpoint0_setProductStr(char * product_str);
 #endif
 
+/** Function to set the Serial string
+ *
+ *  \param serial_str Serial string to set
+*/
+#ifdef __XC__
+void XUA_Endpoint0_setSerialStr(char * unsafe serial_str);
+#else
+void XUA_Endpoint0_setSerialStr(char * serial_str);
+#endif
+
 /** Function to set the BCD device
  *
  *  \param bcdDevice BCD device to set
@@ -72,7 +82,7 @@ void XUA_Endpoint0_setBcdDevice(unsigned short bcdDevice);
 
 /** Function to get the Vendor string
  *
- *  \param vid vendor string
+ *  \return vendor string
 */
 #ifdef __XC__
 char * unsafe XUA_Endpoint0_getVendorStr();
@@ -82,7 +92,7 @@ char *  XUA_Endpoint0_getVendorStr(;
 
 /** Function to get the Product string
  *
- *  \param pid Product string
+ *  \return Product string
 */
 #ifdef __XC__
 char * unsafe XUA_Endpoint0_getProductStr();
@@ -90,15 +100,25 @@ char * unsafe XUA_Endpoint0_getProductStr();
 char *  XUA_Endpoint0_getProductStr(;
 #endif
 
-/** Function to get the Vendor string
+/** Function to get the Serial Number string
  *
- *  \return Vendor string
+ *  \return Serial string
+*/
+#ifdef __XC__
+char * unsafe XUA_Endpoint0_getSerialStr();
+#else
+char *  XUA_Endpoint0_getSerialStr(;
+#endif
+
+/** Function to get the Vendor ID
+ *
+ *  \return Vendor ID
 */
 unsigned short XUA_Endpoint0_getVendorId();
 
-/** Function to get the Product string
+/** Function to get the Product ID
  *
- *  \return Product string
+ *  \return Product ID
 */
 unsigned short XUA_Endpoint0_getProductId();
 
diff --git a/lib_xua/module_build_info b/lib_xua/module_build_info
index b8b0aa5f..6f454747 100644
--- a/lib_xua/module_build_info
+++ b/lib_xua/module_build_info
@@ -1,4 +1,4 @@
-VERSION = 1.0.1
+VERSION = 1.1.0
 
 DEPENDENT_MODULES = lib_logging(>=3.0.0) \
                     lib_xassert(>=4.0.0) \
diff --git a/lib_xua/src/core/endpoint0/xua_endpoint0.c b/lib_xua/src/core/endpoint0/xua_endpoint0.c
index f30b4c5c..e91d61fc 100755
--- a/lib_xua/src/core/endpoint0/xua_endpoint0.c
+++ b/lib_xua/src/core/endpoint0/xua_endpoint0.c
@@ -118,6 +118,8 @@ char g_product_str[XUA_MAX_STR_LEN] = PRODUCT_STR_A2;
 char g_product_str[XUA_MAX_STR_LEN] = PRODUCT_STR_A1;
 #endif
 
+char g_serial_str[XUA_MAX_STR_LEN] = "";
+
 /* Subslot */
 const unsigned g_subSlot_Out_HS[OUTPUT_FORMAT_COUNT]    = {HS_STREAM_FORMAT_OUTPUT_1_SUBSLOT_BYTES,
 #if(OUTPUT_FORMAT_COUNT > 1)
@@ -289,6 +291,9 @@ void XUA_Endpoint0_setStrTable() {
     concatenateAndCopyStrings(g_product_str, "", g_strTable.usbInputTermStr_Audio2);
     concatenateAndCopyStrings(g_product_str, "", g_strTable.usbOutputTermStr_Audio2);
 #endif
+    
+    // update Serial strings
+    concatenateAndCopyStrings(g_serial_str, "", g_strTable.serialStr);
 }
 
 void XUA_Endpoint0_setVendorStr(char* vendor_str) {
@@ -301,6 +306,11 @@ void XUA_Endpoint0_setProductStr(char* product_str) {
     concatenateAndCopyStrings(product_str, "", g_product_str);
 }
 
+void XUA_Endpoint0_setSerialStr(char* serial_str) {
+    debug_printf("XUA_Endpoint0_setSerialStr() with string %s\n", serial_str);
+    concatenateAndCopyStrings(serial_str, "", g_serial_str);
+}
+
 char* XUA_Endpoint0_getVendorStr() {
     return g_strTable.vendorStr;
 }
@@ -313,6 +323,10 @@ char* XUA_Endpoint0_getProductStr() {
     #endif
 }
 
+char* XUA_Endpoint0_getSerialStr() {
+    return g_strTable.serialStr;
+}
+
 void XUA_Endpoint0_setProductId(unsigned short pid) {
 #if (AUDIO_CLASS == 1)
     devDesc_Audio1.idProduct = pid;
diff --git a/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h b/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h
index 185575bb..beaaa4e7 100644
--- a/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h
+++ b/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h
@@ -40,6 +40,7 @@
 #define XUA_CTRL_EMPTY_STRING "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\08"
 #define XUA_MIDI_OUT_EMPTY_STRING "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\09"
 #define XUA_MIDI_IN_EMPTY_STRING "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0a"
+#define XUA_SERIAL_EMPTY_STRING "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0b"
 
 // The value below must match the length of XUA_DESCR_EMPTY_STRING.
 #define XUA_MAX_STR_LEN (32)
@@ -334,7 +335,7 @@ StringDescTable_t g_strTable =
 {
     .langID                      = "\x09\x04", /* US English */
     .vendorStr                   = XUA_VENDOR_EMPTY_STRING,
-    .serialStr                   = "",
+    .serialStr                   = XUA_SERIAL_EMPTY_STRING,
 #if (AUDIO_CLASS == 2)
     .productStr_Audio2           = XUA_PRODUCT_EMPTY_STRING,
     .outputInterfaceStr_Audio2   = XUA_PRODUCT_EMPTY_STRING,