Add blocking versions of the CDC Class driver streams, for applications requiring blocking reads.

2009-11-12 12:47:15 +00:00
parent 6a46f0025a
commit 652042111c
4 changed files with 51 additions and 0 deletions
@@ -353,6 +353,17 @@ static int CDC_Host_getchar(FILE* Stream)
 	return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
 }

+static int CDC_Host_getchar_Blocking(FILE* Stream)
+{
+	while (!(CDC_Host_BytesReceived((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream))))
+	{
+		CDC_Host_USBTask((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
+		USB_USBTask();
+	}
+
+	return CDC_Host_ReceiveByte((USB_ClassInfo_CDC_Host_t*)fdev_get_udata(Stream));
+}
+
 void CDC_Host_Event_Stub(void)
 {