X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/7f9f97c792dee6875fbca9806422bdd7d6c5a657..03ee87b35abdb8b92e8b55ec040fa943f9a6786c:/LUFA/Drivers/USB/Class/Host/CDC.c

diff --git a/LUFA/Drivers/USB/Class/Host/CDC.c b/LUFA/Drivers/USB/Class/Host/CDC.c
index 030ad9464..7f5bcb940 100644
--- a/LUFA/Drivers/USB/Class/Host/CDC.c
+++ b/LUFA/Drivers/USB/Class/Host/CDC.c
@@ -445,6 +445,9 @@ static int CDC_Host_getchar_Blocking(FILE* Stream)
 {
 	while (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))))
 	{
+		if (USB_HostState == HOST_STATE_Unattached)
+		  return _FDEV_EOF;
+
 		CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
 		USB_USBTask();
 	}