--- /dev/null
+#ifndef _VX_DEBUG_CMD_H
+#define _VX_DEBUG_CMD_H
+
+
+/* debug commands */
+
+#define VCMD_dump_history VC_CMD(DEBUG, 1, 0)
+
+#ifdef __KERNEL__
+
+extern int vc_dump_history(uint32_t);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_DEBUG_CMD_H */