diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index 4ada43c..dd4d5b4 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -401,8 +401,34 @@
 	// there are also chip quirks/bugs in init logic
 
 	struct work_struct	nec_work;	/* Worker for NEC quirk */
+
+	/* Needed for ZF Micro quirk */
+	struct timer_list	unlink_watchdog;
+	unsigned		eds_scheduled;
+	struct ed		*ed_to_check;
+	unsigned		zf_delay;
 };
 
+#ifdef CONFIG_PCI
+static inline int quirk_nec(struct ohci_hcd *ohci)
+{
+	return ohci->flags & OHCI_QUIRK_NEC;
+}
+static inline int quirk_zfmicro(struct ohci_hcd *ohci)
+{
+	return ohci->flags & OHCI_QUIRK_ZFMICRO;
+}
+#else
+static inline int quirk_nec(struct ohci_hcd *ohci)
+{
+	return 0;
+}
+static inline int quirk_zfmicro(struct ohci_hcd *ohci)
+{
+	return 0;
+}
+#endif
+
 /* convert between an hcd pointer and the corresponding ohci_hcd */
 static inline struct ohci_hcd *hcd_to_ohci (struct usb_hcd *hcd)
 {