Index: uspace/lib/c/generic/async.c
===================================================================
--- uspace/lib/c/generic/async.c	(revision 939871aec67b0f8c6f3ccfbc7625ddd112515228)
+++ uspace/lib/c/generic/async.c	(revision 5ae1c51758b0e7f1201875571f58aaefc96cffbb)
@@ -2383,14 +2383,36 @@
 bool async_data_write_receive(ipc_callid_t *callid, size_t *size)
 {
+	ipc_call_t data;
+	return async_data_write_receive_call(callid, &data, size);
+}
+
+/** Wrapper for receiving the IPC_M_DATA_WRITE calls using the async framework.
+ *
+ * This wrapper only makes it more comfortable to receive IPC_M_DATA_WRITE
+ * calls so that the user doesn't have to remember the meaning of each IPC
+ * argument.
+ *
+ * So far, this wrapper is to be used from within a connection fibril.
+ *
+ * @param callid Storage for the hash of the IPC_M_DATA_WRITE.
+ * @param data   Storage for the ipc call data.
+ * @param size   Storage for the suggested size. May be NULL.
+ *
+ * @return True on success, false on failure.
+ *
+ */
+bool async_data_write_receive_call(ipc_callid_t *callid, ipc_call_t *data,
+    size_t *size)
+{
 	assert(callid);
-	
-	ipc_call_t data;
-	*callid = async_get_call(&data);
-	
-	if (IPC_GET_IMETHOD(data) != IPC_M_DATA_WRITE)
+	assert(data);
+	
+	*callid = async_get_call(data);
+	
+	if (IPC_GET_IMETHOD(*data) != IPC_M_DATA_WRITE)
 		return false;
 	
 	if (size)
-		*size = (size_t) IPC_GET_ARG2(data);
+		*size = (size_t) IPC_GET_ARG2(*data);
 	
 	return true;
Index: uspace/lib/c/include/async.h
===================================================================
--- uspace/lib/c/include/async.h	(revision 939871aec67b0f8c6f3ccfbc7625ddd112515228)
+++ uspace/lib/c/include/async.h	(revision 5ae1c51758b0e7f1201875571f58aaefc96cffbb)
@@ -437,4 +437,5 @@
 extern int async_data_write_start(async_exch_t *, const void *, size_t);
 extern bool async_data_write_receive(ipc_callid_t *, size_t *);
+extern bool async_data_write_receive_call(ipc_callid_t *, ipc_call_t *, size_t *);
 extern int async_data_write_finalize(ipc_callid_t, void *, size_t);