/*
   *
   * i2c-mux.h - functions for the i2c-bus mux support
   *
   * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
   * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
   * Michael Lawnick <michael.lawnick.ext@nsn.com>
   *
   * 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., 51 Franklin Street, Fifth Floor, Boston,
   * MA 02110-1301 USA.
   */
  
  #ifndef _LINUX_I2C_MUX_H
  #define _LINUX_I2C_MUX_H
  
  #ifdef __KERNEL__
  
  /*
   * Called to create a i2c bus on a multiplexed bus segment.
   * The mux_dev and chan_id parameters are passed to the select
   * and deselect callback functions to perform hardware-specific
   * mux control.
   */
  struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
  				struct device *mux_dev,
  				void *mux_priv, u32 force_nr, u32 chan_id,
  				unsigned int class,
  				int (*select) (struct i2c_adapter *,
  					       void *mux_dev, u32 chan_id),
  				int (*deselect) (struct i2c_adapter *,
  						 void *mux_dev, u32 chan_id));
  
  void i2c_del_mux_adapter(struct i2c_adapter *adap);
  
  #endif /* __KERNEL__ */
  
  #endif /* _LINUX_I2C_MUX_H */