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debugfs: helper for decimal challenged 

Allows debugfs helper functions to have a hex output, rather than just decimal

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Robin Getz 2007-08-02 18:23:50 -04:00 committed by Greg Kroah-Hartman
parent d716551e18
commit 2ebefc5016
2 changed files with 63 additions and 0 deletions
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36
fs/debugfs/file.c
View File

@ -221,6 +221,42 @@ struct dentry *debugfs_create_u64(const char *name, mode_t mode,
} }
EXPORT_SYMBOL_GPL(debugfs_create_u64); 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, static ssize_t read_file_bool(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos) size_t count, loff_t *ppos)
{ {

27
include/linux/debugfs.h
View File

@ -49,6 +49,12 @@ struct dentry *debugfs_create_u32(const char *name, mode_t mode,
struct dentry *parent, u32 *value); struct dentry *parent, u32 *value);
struct dentry *debugfs_create_u64(const char *name, mode_t mode, struct dentry *debugfs_create_u64(const char *name, mode_t mode,
struct dentry *parent, u64 *value); 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 *debugfs_create_bool(const char *name, mode_t mode,
struct dentry *parent, u32 *value); 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); 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, static inline struct dentry *debugfs_create_bool(const char *name, mode_t mode,
struct dentry *parent, struct dentry *parent,
u32 *value) u32 *value)