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-rw-r--r--include/linux/usb/otg.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index e007074..1db25d1 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -1,11 +1,13 @@
/* USB OTG (On The Go) defines */
-
/*
+ *
* These APIs may be used between USB controllers. USB device drivers
* (for either host or peripheral roles) don't use these calls; they
* continue to use just usb_device and usb_gadget.
*/
+#ifndef __LINUX_USB_OTG_H
+#define __LINUX_USB_OTG_H
/* OTG defines lots of enumeration states before device reset */
enum usb_otg_state {
@@ -129,3 +131,5 @@ otg_start_srp(struct otg_transceiver *otg)
/* for OTG controller drivers (and maybe other stuff) */
extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num);
+
+#endif /* __LINUX_USB_OTG_H */