int (*readChunkFromNAND)(struct yaffs_DeviceStruct *dev,int chunkInNAND, __u8 *data, yaffs_Spare *spare);
int (*eraseBlockInNAND)(struct yaffs_DeviceStruct *dev,int blockInNAND);
int (*initialiseNAND)(struct yaffs_DeviceStruct *dev);
int (*readChunkFromNAND)(struct yaffs_DeviceStruct *dev,int chunkInNAND, __u8 *data, yaffs_Spare *spare);
int (*eraseBlockInNAND)(struct yaffs_DeviceStruct *dev,int blockInNAND);
int (*initialiseNAND)(struct yaffs_DeviceStruct *dev);