$NetBSD: patch-ab,v 1.1 2005/12/07 17:35:37 joerg Exp $

--- linux_driver/rio_usb.h.orig	2005-12-07 17:17:16.000000000 +0000
+++ linux_driver/rio_usb.h
@@ -59,7 +59,7 @@ 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