1 files changed, 4 insertions, 4 deletions
diff --git a/libmaple/usb/usb.h b/libmaple/usb/usb.h
index c0fcec0..84390cb 100644
--- a/libmaple/usb/usb.h
+++ b/libmaple/usb/usb.h
@@ -72,10 +72,10 @@ void usbEnbISR(void);
 void usb_lpIRQHandler(void);
 void usbWaitReset(void);
 
-/* nonblocking functions for send/receive */
-uint16 usbSendBytes(uint8* sendBuf,uint16 len);
-uint8 usbBytesAvailable(void);
-uint8 usbReceiveBytes(uint8* recvBuf, uint8 len);
+/* blocking functions for send/receive */
+uint32 usbSendBytes(uint8* sendBuf,uint16 len);
+uint32 usbBytesAvailable(void);
+uint32 usbReceiveBytes(uint8* recvBuf, uint8 len);
 uint8 usbGetDTR(void);
 uint8 usbGetRTS(void);
 uint8 usbIsConnected(void);