$NetBSD: patch-ab,v 1.2 2007/01/06 04:21:24 schmonz Exp $

--- linux_driver/rio_usb.h.orig	2006-08-07 11:47:28.000000000 -0400
+++ linux_driver/rio_usb.h
@@ -61,7 +61,7 @@ struct RioCommand {
 	int timeout;
 };
 
-#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
 #define RIO_SEND_COMMAND       _IOWR('U', 200, struct RioCommand)
 #define RIO_RECV_COMMAND       _IOWR('U', 201, struct RioCommand)
 #else