/*
* Encrypt an arbitrary sized buffer
*/
-#define DESIOCBLOCK _IOWR(d, 6, struct desparams)
+#define DESIOCBLOCK _IOWR('d', 6, struct desparams)
/*
* Encrypt of small amount of data, quickly
*/
-#define DESIOCQUICK _IOWR(d, 7, struct desparams)
+#define DESIOCQUICK _IOWR('d', 7, struct desparams)