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+#ifndef potentiometer_stm32_hh
+#define potentiometer_stm32_hh
+// io-hub - Modular Input/Output. {{{
+//
+// Copyright (C) 2013 Nicolas Schodet
+//
+// APBTeam:
+// Web: http://apbteam.org/
+// Email: team AT apbteam DOT org
+//
+// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "i2c_queue.hh"
+
+/// I2C potentiometer, MCP4661.
+class Potentiometer : public I2cQueue::Slave
+{
+ public:
+ /// Constructor with address variable part.
+ Potentiometer (I2cQueue &queue, int a2a1a0);
+ /// See I2cQueue::Slave::recv_status.
+ void recv_status (const uint8_t *status);
+ /// Send a low level command.
+ void send_command (int mem_addr, int data);
+ /// Set wiper to specified level.
+ void set_wiper (int index, int data, bool eeprom = false);
+};
+
+#endif // potentiometer_stm32_hh