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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#ifndef __MTD_TRANS_H__#define __MTD_TRANS_H__
#include <linux/mutex.h>#include <linux/kref.h>#include <linux/sysfs.h>
struct hd_geometry;struct mtd_info;struct mtd_blktrans_ops;struct file;struct inode;
struct mtd_blktrans_dev { struct mtd_blktrans_ops *tr; struct list_head list; struct mtd_info *mtd; struct mutex lock; int devnum; bool bg_stop; unsigned long size; int readonly; int open; struct kref ref; struct gendisk *disk; struct attribute_group *disk_attributes; struct request_queue *rq; struct list_head rq_list; struct blk_mq_tag_set *tag_set; spinlock_t queue_lock; void *priv; bool writable;};
struct mtd_blktrans_ops { char *name; int major; int part_bits; int blksize; int blkshift;
/* Access functions */ int (*readsect)(struct mtd_blktrans_dev *dev, unsigned long block, char *buffer); int (*writesect)(struct mtd_blktrans_dev *dev, unsigned long block, char *buffer); int (*discard)(struct mtd_blktrans_dev *dev, unsigned long block, unsigned nr_blocks); void (*background)(struct mtd_blktrans_dev *dev);
/* Block layer ioctls */ int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo); int (*flush)(struct mtd_blktrans_dev *dev);
/* Called with mtd_table_mutex held; no race with add/remove */ int (*open)(struct mtd_blktrans_dev *dev); void (*release)(struct mtd_blktrans_dev *dev);
/* Called on {de,}registration and on subsequent addition/removal of devices, with mtd_table_mutex held. */ void (*add_mtd)(struct mtd_blktrans_ops *tr, struct mtd_info *mtd); void (*remove_dev)(struct mtd_blktrans_dev *dev);
struct list_head devs; struct list_head list; struct module *owner;};
extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr);extern int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr);extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev);
/** * module_mtd_blktrans() - Helper macro for registering a mtd blktrans driver * @__mtd_blktrans: mtd_blktrans_ops struct * * Helper macro for mtd blktrans drivers which do not do anything special in * module init/exit. This eliminates a lot of boilerplate. Each module may only * use this macro once, and calling it replaces module_init() and module_exit() */#define module_mtd_blktrans(__mtd_blktrans) \ module_driver(__mtd_blktrans, register_mtd_blktrans, \ deregister_mtd_blktrans)
#endif /* __MTD_TRANS_H__ */