--- /dev/null
+#ifndef _VBUTIL_
+#define _VBUTIL_
+extern void xgifb_reg_set(unsigned long, u8, u8);
+extern u8 xgifb_reg_get(unsigned long, u8);
+extern void xgifb_reg_or(unsigned long, u8, unsigned);
+extern void xgifb_reg_and(unsigned long, u8, unsigned);
+extern void xgifb_reg_and_or(unsigned long, u8, unsigned, unsigned);
+#endif
+