Added new USB_DeviceState variable to keep track of the current Device mode USB state.

[pub/USBasp.git] / Demos / Host / LowLevel / PrinterHost / Lib / PrinterCommands.c

diff --git a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
index 4c88bb4..cb051cd 100644 (file)
--- a/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
+++ b/Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c
@@ -54,7 +54,11 @@ uint8_t Printer_SendData(Printer_Data_t* PrinterCommands)
          return ErrorCode;\r
 \r
        Pipe_ClearOUT();\r
-       while (!(Pipe_IsOUTReady()));\r
+       while (!(Pipe_IsOUTReady()))\r
+       {\r
+               if (USB_HostState == HOST_STATE_Unattached)\r
+                 return PIPE_RWSTREAM_DeviceDisconnected;\r
+       }\r
        \r
        Pipe_Freeze();\r
 \r