#define B3500000 0010016
#define B4000000 0010017
#define CIBAUD 002003600000 /* input baud rate (not used) */
+#define CTVB 004000000000 /* VisioBraille Terminal flow control */
#define CMSPAR 010000000000 /* mark or space (stick) parity */
#define CRTSCTS 020000000000 /* flow control */