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mtd: introduce mtd_write_user_prot_reg interface

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Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Artem Bityutskiy
2011-12-23 18:50:04 +02:00
committed by David Woodhouse
parent 4ea1cabb92
commit 482b43adbb
3 changed files with 12 additions and 4 deletions
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10
include/linux/mtd/mtd.h
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@ -200,13 +200,14 @@ struct mtd_info {
size_t len);
int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
size_t len, size_t *retlen, u_char *buf);
int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, u_char *buf);
/* Backing device capabilities for this device
* - provides mmap capabilities
*/
struct backing_dev_info *backing_dev_info;
int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
/* kvec-based read/write methods.
@ -361,6 +362,13 @@ static inline int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
return mtd->read_user_prot_reg(mtd, from, len, retlen, buf);
}
static inline int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to,
size_t len, size_t *retlen,
u_char *buf)
{
return mtd->write_user_prot_reg(mtd, to, len, retlen, buf);
}
static inline struct mtd_info *dev_to_mtd(struct device *dev)
{
return dev ? dev_get_drvdata(dev) : NULL;