-#define QD_GETEVENT _IOR(g, 1, struct _vs_event) /* get oldest event */
-#define QD_WTCURSOR _IOW(g, 2, short[32]) /* write cursor bitmap */
-#define QD_RDCURSOR _IOR(g, 3, 64) /* read cursor bitmap */
-#define QD_CLRSCRN _IO(g, 4) /* clear the screen */
-#define QD_RDCONFIG _IOR(g, 5, short) /* read QDSS configuration */
-#define QD_PRGMOUSE _IOW(g, 6, char) /* program mouse */
-#define QD_PRGTABLET _IOW(g, 7, char) /* program tablet */
-#define QD_PRGKBD _IOW(g, 8, struct prgkbd) /* program LK201 kbd */
-#define QD_MAPDEVICE _IOR(g, 9, struct qdmap) /* map device to user */
-#define QD_MAPIOBUF _IOWR(g, 10, caddr_t) /* map DMA iobuf to user */
-#define QD_MAPEVENT _IOR(g, 11, caddr_t) /* map event queue to user */
-#define QD_PRGCURSOR _IOW(g, 12, struct prg_cursor) /* program cursor */
-#define QD_RESET _IO(g, 13) /* set device & driver defaults */
-#define QD_POSCURSOR _IOW(g, 14, struct _vs_cursor) /* position cursor */
-#define QD_SET _IO(g, 15) /* set DUART & driver defaults */
-#define QD_MAPSCROLL _IOR(g, 16, caddr_t) /* map scroll param area */
-#define QD_UNMAPSCROLL _IO(g, 17) /* unmap scroll param area */
-#define QD_MAPCOLOR _IOR(g, 18, caddr_t) /* map color map write buf */
-#define QD_UNMAPCOLOR _IO(g, 19) /* unmap color map write buf */
-#define QD_KERN_LOOP _IO(g, 20) /* detour kernel console output */
-#define QD_KERN_UNLOOP _IO(g, 21) /* un-detour kernel console output */
-#define QD_PRGTABRES _IOW(g, 22, short) /* program tablet resolution */
+#define QD_GETEVENT _IOR('g', 1, struct _vs_event) /* get oldest event */
+#define QD_WTCURSOR _IOW('g', 2, short[32]) /* write cursor bitmap */
+#define QD_RDCURSOR _IOR('g', 3, 64) /* read cursor bitmap */
+#define QD_CLRSCRN _IO('g', 4) /* clear the screen */
+#define QD_RDCONFIG _IOR('g', 5, short) /* read QDSS configuration */
+#define QD_PRGMOUSE _IOW('g', 6, char) /* program mouse */
+#define QD_PRGTABLET _IOW('g', 7, char) /* program tablet */
+#define QD_PRGKBD _IOW('g', 8, struct prgkbd) /* program LK201 kbd */
+#define QD_MAPDEVICE _IOR('g', 9, struct qdmap) /* map device to user */
+#define QD_MAPIOBUF _IOWR('g', 10, caddr_t) /* map DMA iobuf to user */
+#define QD_MAPEVENT _IOR('g', 11, caddr_t) /* map event queue to user */
+#define QD_PRGCURSOR _IOW('g', 12, struct prg_cursor) /* program cursor */
+#define QD_RESET _IO('g', 13) /* set device & driver defaults */
+#define QD_POSCURSOR _IOW('g', 14, struct _vs_cursor) /* position cursor */
+#define QD_SET _IO('g', 15) /* set DUART & driver defaults */
+#define QD_MAPSCROLL _IOR('g', 16, caddr_t) /* map scroll param area */
+#define QD_UNMAPSCROLL _IO('g', 17) /* unmap scroll param area */
+#define QD_MAPCOLOR _IOR('g', 18, caddr_t) /* map color map write buf */
+#define QD_UNMAPCOLOR _IO('g', 19) /* unmap color map write buf */
+#define QD_KERN_LOOP _IO('g', 20) /* detour kernel console output */
+#define QD_KERN_UNLOOP _IO('g', 21) /* un-detour kernel console output */
+#define QD_PRGTABRES _IOW('g', 22, short) /* program tablet resolution */