bool eeprom_read(e2addr_t addr, void *buf, size_t count);
bool eeprom_write_char(e2addr_t addr, char c);
int eeprom_read_char(e2addr_t addr);
bool eeprom_read(e2addr_t addr, void *buf, size_t count);
bool eeprom_write_char(e2addr_t addr, char c);
int eeprom_read_char(e2addr_t addr);