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/*
* mcp23016:
* Copyright (c) 2012-2013 Gordon Henderson
*
* Header file for code using the MCP23016 GPIO expander
* chip.
***********************************************************************
* This file is part of wiringPi:
* https://projects.drogon.net/raspberry-pi/wiringpi/
*
* wiringPi is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* wiringPi 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with wiringPi.
* If not, see <http://www.gnu.org/licenses/>.
***********************************************************************
*/
// MCP23016 Registers
#define MCP23016_GP0 0x00
#define MCP23016_GP1 0x01
#define MCP23016_OLAT0 0x02
#define MCP23016_OLAT1 0x03
#define MCP23016_IPOL0 0x04
#define MCP23016_IPOL1 0x05
#define MCP23016_IODIR0 0x06
#define MCP23016_IODIR1 0x07
#define MCP23016_INTCAP0 0x08
#define MCP23016_INTCAP1 0x09
#define MCP23016_IOCON0 0x0A
#define MCP23016_IOCON1 0x0B
// Bits in the IOCON register
#define IOCON_IARES 0x01
// Default initialisation mode
#define IOCON_INIT 0
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