diff --git a/README b/README
index f9c1978c3bfb8a7af03d0463e9c2acb4a7d4c98d..294f0c1dce0c1ebe70b32ec10ff9255c48257c8c 100644
--- a/README
+++ b/README
@@ -901,6 +901,9 @@ The following options need to be configured:
 			CONFIG_USB_CONFIG
 				for differential drivers: 0x00001000
 				for single ended drivers: 0x00005000
+			CFG_USB_EVENT_POLL
+				May be defined to allow interrupt polling
+				instead of using asynchronous interrupts
 
 - USB Device:
 		Define the below if you wish to use the USB console.
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 56c21660fa006aa69d9912cb5f31ba99f0827379..aec558ad203b34a9a2a04a6091ab7b717aa4703f 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -129,7 +129,11 @@ static int usb_kbd_testc(void)
 static int usb_kbd_getc(void)
 {
 	char c;
-	while(usb_in_pointer==usb_out_pointer);
+	while(usb_in_pointer==usb_out_pointer) {
+#ifdef CFG_USB_EVENT_POLL
+		usb_event_poll();
+#endif
+	}
 	if((usb_out_pointer+1)==USB_KBD_BUFFER_LEN)
 		usb_out_pointer=0;
 	else
diff --git a/include/usb.h b/include/usb.h
index 504ccc40fc0c8f95e0a126a52132ecbe51601044..4e1539fa8820684b7c38e2cf00c283d7b6eeb07d 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -180,6 +180,7 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 			int transfer_len,struct devrequest *setup);
 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 			int transfer_len, int interval);
+void usb_event_poll(void);
 
 /* Defines */
 #define USB_UHCI_VEND_ID 0x8086