X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/bf50959b8016adbf6b295178b26b8173514dd060..67f390fe746ccc4d1dceac23f590eb1723cb7ff2:/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 07c05141b..12b55938c 100644
--- a/LUFA/Drivers/USB/Class/Device/CDC.c
+++ b/LUFA/Drivers/USB/Class/Device/CDC.c
@@ -114,7 +114,7 @@ bool CDC_Device_ConfigureEndpoints(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
 
 void CDC_Device_USBTask(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)
 {
-	if (!(USB_IsConnected))
+	if (!(USB_IsConnected) || !(USB_ConfigurationNumber))
 	  return;
 
 	Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataINEndpointNumber);