From 5d1b66dde330002103b99e618d9149510dce6cf7 Mon Sep 17 00:00:00 2001
From: Jonathan Naylor <naylorjs@yahoo.com>
Date: Thu, 7 May 2020 22:07:58 +0100
Subject: [PATCH] Add the missing functions.

---
 FM.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/FM.cpp b/FM.cpp
index ba952b7..662291b 100644
--- a/FM.cpp
+++ b/FM.cpp
@@ -450,3 +450,15 @@ void CFM::beginRelaying()
   m_timeoutTimer.start();
   m_ackMinTimer.start();
 }
+
+uint8_t CFM::getSpace() const
+{
+  // The amount of free space for receiving external audio, in bytes.
+  return 0U;
+}
+
+uint8_t CFM::writeData(const uint8_t* data, uint8_t length)
+{
+  // Handle incoming external audio, in 12-bit packed form.
+  return 0U;
+}