1256 struct nand_chip {  struct
1261 	struct nand_chip_ops ops;  argument
1262 	struct nand_legacy legacy;
1263 	unsigned int options;
1266 	const struct nand_interface_config *current_interface_config;
1267 	struct nand_interface_config *best_interface_config;
1270 	unsigned int bbt_erase_shift;
1271 	unsigned int bbt_options;
1272 	unsigned int badblockpos;
1273 	unsigned int badblockbits;
1274 	struct nand_bbt_descr *bbt_td;
1275 	struct nand_bbt_descr *bbt_md;
1276 	struct nand_bbt_descr *badblock_pattern;
1277 	u8 *bbt;
1280 	unsigned int page_shift;
1281 	unsigned int phys_erase_shift;
1282 	unsigned int chip_shift;
1283 	unsigned int pagemask;
1284 	unsigned int subpagesize;
1310 static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)  in mtd_to_nand()  argument