text: #ifndef __FS_H
  #define __FS_H
  
  #define SPI_FLASH_PHYS_SIZE  (0x300000-0x8000)
  #define SPI_FLASH_START_ADDR 0x100000
  
  #define SPI_FLASH_SEC_SIZE 4096
  #define LOG_PAGE_SIZE (SPI_FLASH_SEC_SIZE/8)
  #define FS_FILE_DESCRIPTOR_SIZE 128
  #define FS_CACHE_SIZE ((LOG_PAGE_SIZE+32)*4)
  
  bool indoorio_fs_init();
  
  #endif
  