Added new USB_Device_GetFrameNumber() and USB_Host_GetFrameNumber() functions to...

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / Device.h

diff --git a/LUFA/Drivers/USB/LowLevel/Device.h b/LUFA/Drivers/USB/LowLevel/Device.h
index 17984c7..3007936 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/Device.h
+++ b/LUFA/Drivers/USB/LowLevel/Device.h
@@ -140,6 +140,14 @@
                        };
                        
                /* Inline Functions: */
+                       /** Returns the current USB frame number, when in device mode. Every millisecond the USB bus is active (i.e. enumerated to a host)
+                        *  the frame number is incremented by one.
+                        */
+                       static inline uint16_t USB_Device_GetFrameNumber(void)
+                       {
+                               return UDFNUM;
+                       }
+               
                        /** Enables the device mode Start Of Frame events. When enabled, this causes the
                         *  \ref EVENT_USB_Device_StartOfFrame() event to fire once per millisecond, synchronized to the USB bus,
                         *  at the start of each USB frame when enumerated in device mode.