Re-add Webserver uIP application polling, apply patch to uIP by Andrew Ruder to fix...

[pub/USBasp.git] / 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 c274853..b8a673f 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/CDC.c
+++ b/LUFA/Drivers/USB/Class/Device/CDC.c
@@ -190,10 +190,17 @@ uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterface
 \r
        Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);\r
 \r
-       if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint()))\r
-         Endpoint_ClearOUT();\r
+       if (Endpoint_IsOUTReceived())\r
+       {\r
+               if (!(Endpoint_BytesInEndpoint()))\r
+                 Endpoint_ClearOUT();\r
 \r
-       return Endpoint_BytesInEndpoint();\r
+               return Endpoint_BytesInEndpoint();\r
+       }\r
+       else\r
+       {\r
+               return 0;\r
+       }\r
 }\r
 \r
 uint8_t CDC_Device_ReceiveByte(USB_ClassInfo_CDC_Device_t* CDCInterfaceInfo)\r
@@ -263,6 +270,9 @@ static int CDC_Device_getchar_Blocking(FILE* Stream)
 {\r
        while (!(CDC_Device_BytesReceived((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream))))\r
        {\r
+               if (USB_DeviceState == DEVICE_STATE_Unattached)\r
+                 return _FDEV_EOF;\r
+       \r
                CDC_Device_USBTask((USB_ClassInfo_CDC_Device_t*)fdev_get_udata(Stream));\r
                USB_USBTask();\r
        }\r