1 files changed, 6 insertions, 6 deletions
diff --git a/host/include/uhd/transport/zero_copy.hpp b/host/include/uhd/transport/zero_copy.hpp
index 4fc1df9de..fdc5b141c 100644
--- a/host/include/uhd/transport/zero_copy.hpp
+++ b/host/include/uhd/transport/zero_copy.hpp
@@ -45,7 +45,7 @@ public:
      * Get the size of the underlying buffer.
      * \return the number of bytes
      */
-    size_t size(void){
+    size_t size(void) const{
         return boost::asio::buffer_size(this->get());
     }
 
@@ -53,7 +53,7 @@ public:
      * Get a pointer to the underlying buffer.
      * \return a pointer into memory
      */
-    template <class T> T cast(void){
+    template <class T> T cast(void) const{
         return boost::asio::buffer_cast<T>(this->get());
     }
 
@@ -63,7 +63,7 @@ private:
      * The buffer has a reference to memory and a size.
      * \return a boost asio const buffer
      */
-    virtual const boost::asio::const_buffer &get(void) = 0;
+    virtual const boost::asio::const_buffer &get(void) const = 0;
 };
 
 /*!
@@ -87,7 +87,7 @@ public:
      * Get the size of the underlying buffer.
      * \return the number of bytes
      */
-    size_t size(void){
+    size_t size(void) const{
         return boost::asio::buffer_size(this->get());
     }
 
@@ -95,7 +95,7 @@ public:
      * Get a pointer to the underlying buffer.
      * \return a pointer into memory
      */
-    template <class T> T cast(void){
+    template <class T> T cast(void) const{
         return boost::asio::buffer_cast<T>(this->get());
     }
 
@@ -105,7 +105,7 @@ private:
      * The buffer has a reference to memory and a size.
      * \return a boost asio mutable buffer
      */
-    virtual const boost::asio::mutable_buffer &get(void) = 0;
+    virtual const boost::asio::mutable_buffer &get(void) const = 0;
 };
 
 /*!