LXR linux/include/linux/eeprom

   1/*
   2 * Module: eeprom_93xx46
   3 * platform description for 93xx46 EEPROMs.
   4 */
   5
   6struct gpio_desc;
   7
   8struct eeprom_93xx46_platform_data {
   9        unsigned char   flags;
  10#define EE_ADDR8        0x01            /*  8 bit addr. cfg */
  11#define EE_ADDR16       0x02            /* 16 bit addr. cfg */
  12#define EE_READONLY     0x08            /* forbid writing */
  13
  14        unsigned int    quirks;
  15/* Single word read transfers only; no sequential read. */
  16#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ            (1 << 0)
  17/* Instructions such as EWEN are (addrlen + 2) in length. */
  18#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH          (1 << 1)
  19
  20        /*
  21         * optional hooks to control additional logic
  22         * before and after spi transfer.
  23         */
  24        void (*prepare)(void *);
  25        void (*finish)(void *);
  26        struct gpio_desc *select;
  27};
  28