X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/a459f10b0c1a3e02f160ff3a1a2a0b45ae5b69a7..8711dc7ced0ed02a33a96222d86bd27f65c239ed:/LUFA/Drivers/USB/Class/Device/CDC.c

diff --git a/LUFA/Drivers/USB/Class/Device/CDC.c b/LUFA/Drivers/USB/Class/Device/CDC.c
index 0d6b37850..47290ceb6 100644
--- a/LUFA/Drivers/USB/Class/Device/CDC.c
+++ b/LUFA/Drivers/USB/Class/Device/CDC.c
@@ -161,6 +161,9 @@ uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterface
 {
 	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);
 
+	if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint()))
+	  Endpoint_ClearOUT();
+
 	return Endpoint_BytesInEndpoint();
 }