add msg component for usbtmc, not used by old rigol scopes

diff --git a/usbtmc.h b/usbtmc.h
index bae36da5468508feec29615ded18dd04b7c9a29a..34fb77d7da1c87aff4f18dd12eea548097cebb40 100644 (file)
--- a/usbtmc.h
+++ b/usbtmc.h
@@ -8,6 +8,7 @@ struct usbtmc_header {
        unsigned char TermChar; /* Only in REQUEST_DEV_DEP_MSG_IN */
        unsigned char Reverved10;
        unsigned char Reverved11;
+       unsigned char msg[];
 } __attribute__ ((__packed__));
 
 #define USBTMC_DEV_DEP_MSG_OUT         0x1