1 #ifndef __LINUX_SPI_EEPROM_H 2 #define __LINUX_SPI_EEPROM_H 3 4 #include <linux/memory.h> 5 6 /* 7 * Put one of these structures in platform_data for SPI EEPROMS handled 8 * by the "at25" driver. On SPI, most EEPROMS understand the same core 9 * command set. If you need to support EEPROMs that don't yet fit, add 10 * flags to support those protocol options. These values all come from 11 * the chip datasheets. 12 */ 13 struct spi_eeprom { 14 u32 byte_len; 15 char name[10]; 16 u16 page_size; /* for writes */ 17 u16 flags; 18 #define EE_ADDR1 0x0001 /* 8 bit addrs */ 19 #define EE_ADDR2 0x0002 /* 16 bit addrs */ 20 #define EE_ADDR3 0x0004 /* 24 bit addrs */ 21 #define EE_READONLY 0x0008 /* disallow writes */ 22 23 /* for exporting this chip's data to other kernel code */ 24 void (*setup)(struct memory_accessor *mem, void *context); 25 void *context; 26 }; 27 28 #endif /* __LINUX_SPI_EEPROM_H */ 29