Add enum values for flow control settings.

diff --git a/serialport.h b/serialport.h
index 4e79340bfb6c808c4a2bf6533532b6117313cc80..dafe99bfbcf4eb447f9a3bb8c9851a929d15e43d 100644 (file)
--- a/serialport.h
+++ b/serialport.h
@@ -67,6 +67,16 @@ enum {
        SP_PARITY_ODD = 2
 };
 
+/* Flow control settings. */
+enum {
+       /* No flow control. */
+       SP_FLOW_NONE = 0,
+       /* Hardware (RTS/CTS) flow control. */
+       SP_FLOW_HARDWARE = 1,
+       /* Software (XON/XOFF) flow control. */
+       SP_FLOW_SOFTWARE = 2
+};
+
 char **sp_list_ports(void);
 void sp_free_port_list(char **ports);
 int sp_open(struct sp_port *port, char *portname, int flags);