FIL fd;
};
-/* Return codes */
-
-#define AT_OK 0
-#define AT_ERROR 1
-#define AT_RANGE 2
-#define AT_ALREADY 3
-#define AT_NOT 4
-#define AT_NOFILE 5
-#define AT_NOMEM 6
-#define AT_OPEN 7
-#define AT_OTHER 8
-
int drv_list(void);
int drv_detach(uint8_t drv);