diff --git a/board/compulab/common/common.h b/board/compulab/common/common.h
index 316ee4c..ffe1ef8 100644
--- a/board/compulab/common/common.h
+++ b/board/compulab/common/common.h
@@ -9,6 +9,19 @@
 #ifndef _CL_COMMON_
 #define _CL_COMMON_
 
+#include <asm/errno.h>
+
 void cl_print_pcb_info(void);
 
+#ifdef CONFIG_CMD_USB
+int cl_usb_hub_init(int gpio, const char *label);
+void cl_usb_hub_deinit(int gpio);
+#else /* !CONFIG_CMD_USB */
+static inline int cl_usb_hub_init(int gpio, const char *label)
+{
+	return -ENOSYS;
+}
+static inline void cl_usb_hub_deinit(int gpio) {}
+#endif /* CONFIG_CMD_USB */
+
 #endif /* _CL_COMMON_ */