--- a/src/drv_vmmc_init.c
+++ b/src/drv_vmmc_init.c
@@ -202,11 +202,20 @@ IFX_int32_t VMMC_GetDevice (IFX_uint16_t
 /**
    Wrapper for the voice buffer get function that sets the FW as owner.
 */
-static IFX_void_t* vmmc_WrapperVoiceBufferGet (IFX_void_t)
+static IFX_void_t* vmmc_WrapperVoiceBufferGet (IFX_size_t size,
+                                               IFX_int32_t priority)
 {
    return IFX_TAPI_VoiceBufferGetWithOwnerId (IFX_TAPI_BUFFER_OWNER_FW);
 }
 
+/**
+   Wrapper for the voice buffer get function that sets the FW as owner.
+*/
+static IFX_void_t vmmc_WrapperVoiceBufferPut (const IFX_void_t *ptr)
+{
+   IFX_TAPI_VoiceBufferPut ((IFX_void_t *)ptr);
+}
+
 
 /**
    Wrapper for the voice buffer free all function freeing all buffers that
@@ -263,10 +272,8 @@ IFX_int32_t VMMC_ChipAccessInit(VMMC_DEV
 
    /* Register the buffer handler. */
 #ifdef USE_BUFFERPOOL
-   ifx_mps_bufman_register((IFX_void_t* (*)(IFX_size_t, IFX_int32_t))
-                           vmmc_WrapperVoiceBufferGet,
-                           (IFX_void_t (*)(const IFX_void_t*))
-                           IFX_TAPI_VoiceBufferPut,
+   ifx_mps_bufman_register(vmmc_WrapperVoiceBufferGet,
+                           vmmc_WrapperVoiceBufferPut,
                            sizeof(PACKET), POBX_BUFFER_THRESHOLD);
    ifx_mps_register_bufman_freeall_callback (vmmc_WrapperVoiceBufferFreeAll);
 #else