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kernel/linux-imx6_3.14.28/include/linux/i2c/pca954x.h 1.53 KB
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  /*
   *
   * pca954x.h - I2C multiplexer/switch 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., 675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  
  #ifndef _LINUX_I2C_PCA954X_H
  #define _LINUX_I2C_PCA954X_H
  
  /* Platform data for the PCA954x I2C multiplexers */
  
  /* Per channel initialisation data:
   * @adap_id: bus number for the adapter. 0 = don't care
   * @deselect_on_exit: set this entry to 1, if your H/W needs deselection
   *                    of this channel after transaction.
   *
   */
  struct pca954x_platform_mode {
  	int		adap_id;
  	unsigned int	deselect_on_exit:1;
  	unsigned int	class;
  };
  
  /* Per mux/switch data, used with i2c_register_board_info */
  struct pca954x_platform_data {
  	struct pca954x_platform_mode *modes;
  	int num_modes;
  };
  
  #endif /* _LINUX_I2C_PCA954X_H */