Abstract the processing a little more.

I2CPi.cpp

@@ -0,0 +1,48 @@
+/*
+ *   Copyright (C) 2020 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "I2CPi.h"
+
+#include "bcm2835.h"
+
+CI2CPi::CI2CPi()
+{
+}
+
+CI2CPi::~CI2CPi()
+{
+}
+
+bool CI2CPi::open(unsigned char displayType)
+{
+}
+
+bool CI2CPi::write(const uint8_t* data, uint16_t length)
+{
+	bcm2835_i2c_write(data, length);
+
+	return true;
+}
+
+void CI2CPi::close()
+{
+	bcm2835_i2c_end();
+
+	// Release Raspberry I/O control
+	bcm2835_close();
+}