#ifndef _LINUX_AT24_H
  #define _LINUX_AT24_H
  
  #include <linux/types.h>

  #include <linux/memory.h>

  
  /*
   * As seen through Linux I2C, differences between the most common types of I2C
   * memory include:
   * - How much memory is available (usually specified in bit)?
   * - What write page size does it support?
   * - Special flags (16 bit addresses, read_only, world readable...)?
   *
   * If you set up a custom eeprom type, please double-check the parameters.
   * Especially page_size needs extra care, as you risk data loss if your value
   * is bigger than what the chip actually supports!
   */
  
  struct at24_platform_data {
  	u32		byte_len;		/* size (sum of all addr) */
  	u16		page_size;		/* for writes */
  	u8		flags;
  #define AT24_FLAG_ADDR16	0x80	/* address pointer is 16 bit */
  #define AT24_FLAG_READONLY	0x40	/* sysfs-entry will be read-only */
  #define AT24_FLAG_IRUGO		0x20	/* sysfs-entry will be world-readable */
  #define AT24_FLAG_TAKE8ADDR	0x10	/* take always 8 addresses (24c00) */

  
  	void		(*setup)(struct memory_accessor *, void *context);
  	void		*context;

  };
  
  #endif /* _LINUX_AT24_H */