diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 2e124e0075c5a3c2512af9626b03250c43e45cf3..a9b99c0dc2e7cb6d0575511918776e444cdd1059 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -221,6 +221,42 @@ struct dentry *debugfs_create_u64(const char *name, mode_t mode, } EXPORT_SYMBOL_GPL(debugfs_create_u64); +DEFINE_SIMPLE_ATTRIBUTE(fops_x8, debugfs_u8_get, debugfs_u8_set, "0x%02llx\n"); + +DEFINE_SIMPLE_ATTRIBUTE(fops_x16, debugfs_u16_get, debugfs_u16_set, "0x%04llx\n"); + +DEFINE_SIMPLE_ATTRIBUTE(fops_x32, debugfs_u32_get, debugfs_u32_set, "0x%08llx\n"); + +/** + * debugfs_create_x8 - create a debugfs file that is used to read and write an unsigned 8-bit value + * debugfs_create_x16 - create a debugfs file that is used to read and write an unsigned 16-bit value + * debugfs_create_x32 - create a debugfs file that is used to read and write an unsigned 32-bit value + * + * These functions are exactly the same as the above functions, (but use a hex + * output for the decimal challenged) for details look at the above unsigned + * decimal functions. + */ +struct dentry *debugfs_create_x8(const char *name, mode_t mode, + struct dentry *parent, u8 *value) +{ + return debugfs_create_file(name, mode, parent, value, &fops_x8); +} +EXPORT_SYMBOL_GPL(debugfs_create_x8); + +struct dentry *debugfs_create_x16(const char *name, mode_t mode, + struct dentry *parent, u16 *value) +{ + return debugfs_create_file(name, mode, parent, value, &fops_x16); +} +EXPORT_SYMBOL_GPL(debugfs_create_x16); + +struct dentry *debugfs_create_x32(const char *name, mode_t mode, + struct dentry *parent, u32 *value) +{ + return debugfs_create_file(name, mode, parent, value, &fops_x32); +} +EXPORT_SYMBOL_GPL(debugfs_create_x32); + static ssize_t read_file_bool(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 104e51e20e14a56b67e97b868e1bf2847d8b1f91..f592d6de3b971592a2b289e57175d776c212f3b1 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -49,6 +49,12 @@ struct dentry *debugfs_create_u32(const char *name, mode_t mode, struct dentry *parent, u32 *value); struct dentry *debugfs_create_u64(const char *name, mode_t mode, struct dentry *parent, u64 *value); +struct dentry *debugfs_create_x8(const char *name, mode_t mode, + struct dentry *parent, u8 *value); +struct dentry *debugfs_create_x16(const char *name, mode_t mode, + struct dentry *parent, u16 *value); +struct dentry *debugfs_create_x32(const char *name, mode_t mode, + struct dentry *parent, u32 *value); struct dentry *debugfs_create_bool(const char *name, mode_t mode, struct dentry *parent, u32 *value); @@ -122,6 +128,27 @@ static inline struct dentry *debugfs_create_u64(const char *name, mode_t mode, return ERR_PTR(-ENODEV); } +static inline struct dentry *debugfs_create_x8(const char *name, mode_t mode, + struct dentry *parent, + u8 *value) +{ + return ERR_PTR(-ENODEV); +} + +static inline struct dentry *debugfs_create_x16(const char *name, mode_t mode, + struct dentry *parent, + u16 *value) +{ + return ERR_PTR(-ENODEV); +} + +static inline struct dentry *debugfs_create_x32(const char *name, mode_t mode, + struct dentry *parent, + u32 *value) +{ + return ERR_PTR(-ENODEV); +} + static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode, struct dentry *parent, u32 *value)