diff --git a/libqwqng-wrapper-x86-64.so b/libqwqng-wrapper-x86-64.so
index fe29393..64fdf4f 100644
Binary files a/libqwqng-wrapper-x86-64.so and b/libqwqng-wrapper-x86-64.so differ
diff --git a/quanttp/data/qng_wrapper_linux.py b/quanttp/data/qng_wrapper_linux.py
index fda16db..a31376c 100644
--- a/quanttp/data/qng_wrapper_linux.py
+++ b/quanttp/data/qng_wrapper_linux.py
@@ -19,7 +19,7 @@
 # SOFTWARE.
 
 import platform
-from ctypes import cdll, c_void_p, c_int, c_double, POINTER, c_char
+from ctypes import cdll, c_void_p, c_int, c_double, POINTER, c_char, c_char_p, cast
 
 
 class QngWrapperLinux:
@@ -35,10 +35,19 @@ class QngWrapperLinux:
         self._qwqng_wrapper.RandNormal.restype = c_double
         self._qwqng_wrapper.RandBytes.argtypes = [c_void_p, c_int]
         self._qwqng_wrapper.RandBytes.restype = POINTER(c_char)
+        self._qwqng_wrapper.DeviceID.argtypes = [c_void_p]
+        self._qwqng_wrapper.DeviceID.restype = POINTER(c_char)
         self._qwqng_wrapper.Clear.argtypes = [c_void_p]
         self._qwqng_wrapper.Reset.argtypes = [c_void_p]
         self._qng_pointer = self._qwqng_wrapper.GetQwqngInstance()
 
+    def deviceId(self):
+        try:
+            return cast(self._qwqng_wrapper.DeviceID(self._qng_pointer), c_char_p).value.decode("utf-8")
+        except:
+            self._qwqng_wrapper.Reset(self._qng_pointer)
+            return cast(self._qwqng_wrapper.DeviceID(self._qng_pointer), c_char_p).value.decode("utf-8")
+        
     def randint32(self):
         try:
             return self._qwqng_wrapper.RandInt32(self._qng_pointer)