$NetBSD: patch-ab,v 1.1 2006/04/22 17:45:05 joerg Exp $

--- cpia2view.c.orig	2006-04-22 17:24:42.000000000 +0000
+++ cpia2view.c
@@ -40,7 +40,11 @@
 #include <string.h>
 #include <err.h>
 
+#if defined(__DragonFly__)
+#include <bus/usb/usb.h>
+#else
 #include <dev/usb/usb.h>
+#endif
 #ifndef  USB_SET_PACKETCHKSUM
 #define USB_SET_PACKETCHKSUM	_IOW ('U', 115, int)
 #endif
@@ -142,9 +146,9 @@ int main(int argc, char *argv[])
     /* enable checksum to isoc data */
     chksum = 1;
     if ( (ret = ioctl(usbdev.fd, USB_SET_PACKETCHKSUM, (void *)&chksum)) != 0 ) {
-	    perror("USB_SET_PACKETCHKSUM");
-	    ret = 1;
-	    goto OPENERR;
+	    fprintf(stderr, "You should apply following kernel patch to use this package.\n");
+	    fprintf(stderr, "\thttp://www2.starcat.ne.jp/~takam/bsd/cpia2-netbsd-sys-1.6.2.diff\n");
+	    exit(1);
     }
 
     /* set size and start stream */