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Commit 2ebefc50 authored by Robin Getz's avatar Robin Getz Committed by Greg Kroah-Hartman
Browse files

debugfs: helper for decimal challenged 



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

Signed-off-by: default avatarRobin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent d716551e

fs/debugfs/file.c

+36 −0
Original line number Diff line number Diff line
@@ -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)

{

include/linux/debugfs.h

+27 −0
Original line number Diff line number Diff line
@@ -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)