Hook up stdio input, for the heck of it. We seem to be moving away from it, but there are things it can do that are hard to do with the Stream interfaces.

git-svn-id: https://arducopter.googlecode.com/svn/trunk@555 f9c3cf11-9bcb-44bc-f272-b75c42450872

libraries/FastSerial/FastSerial.cpp

@@ -103,7 +103,7 @@ FastSerial::FastSerial(const uint8_t portNumber,
         _rxBuffer->head = _rxBuffer->tail = 0;
 
         // init stdio
-        fdev_setup_stream(&_fd, &FastSerial::_putchar, NULL, _FDEV_SETUP_WRITE);
+        fdev_setup_stream(&_fd, &FastSerial::_putchar, &FastSerial::_getchar, _FDEV_SETUP_RW);
         fdev_set_udata(&_fd, this);
         if (0 == portNumber) {
                 stdout = &_fd;          // serial port 0 is always the default console