diff options
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel/Device.h')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/Device.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Device.h b/LUFA/Drivers/USB/LowLevel/Device.h index 17984c719..300793612 100644 --- 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. |