Extend mbus_recv_frame with simple echo cancelation

2012-10-03 23:31:37 +02:00 · 2012-10-03 23:31:37 +02:00 · f7e238afdd
commit f7e238afdd
parent af80dda0d8
1 changed files with 7 additions and 0 deletions
--- a/mbus/mbus-protocol-aux.c
+++ b/mbus/mbus-protocol-aux.c
@ -1467,6 +1467,13 @@ mbus_recv_frame(mbus_handle * handle, mbus_frame *frame)
    }

    result = handle->recv(handle, frame);
+    
+    /* frame valid, but wrong direction */
+    if (mbus_frame_direction(frame) == MBUS_CONTROL_MASK_DIR_M2S)
+    {
+        /* purge echo and retry (echo cancelation) */
+        result = handle->recv(handle, frame);
+    }

    if (frame != NULL)
    {