release/src-rt-6.x/linux/linux-2.6/include/linux/spi/eeprom.h

   1 #ifndef __LINUX_SPI_EEPROM_H
   2 #define __LINUX_SPI_EEPROM_H
   3
   4 /*
   5  * Put one of these structures in platform_data for SPI EEPROMS handled
   6  * by the "at25" driver.  On SPI, most EEPROMS understand the same core
   7  * command set.  If you need to support EEPROMs that don't yet fit, add
   8  * flags to support those protocol options.  These values all come from
   9  * the chip datasheets.
  10  */
  11 struct spi_eeprom {
  12         u32             byte_len;
  13         char            name[10];
  14         u16             page_size;              /* for writes */
  15         u16             flags;
  16 #define EE_ADDR1        0x0001                  /*  8 bit addrs */
  17 #define EE_ADDR2        0x0002                  /* 16 bit addrs */
  18 #define EE_ADDR3        0x0004                  /* 24 bit addrs */
  19 #define EE_READONLY     0x0008                  /* disallow writes */
  20 };
  21
  22 #endif /* __LINUX_SPI_EEPROM_H */