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Subject[PATCH] debugfs helper for decimal challenged
Date
From: Robin Getz <rgetz@blackfin.uclinux.org>

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

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
---
fs/debugfs/file.c | 36 ++++++++++++++++++++++++++++++++++++
include/linux/debugfs.h | 27 +++++++++++++++++++++++++++
2 files changed, 63 insertions(+)
Index: linux-2.6.x/include/linux/debugfs.h
===================================================================
--- linux-2.6.x/include/linux/debugfs.h (revision 3534)
+++ linux-2.6.x/include/linux/debugfs.h (working copy)
@@ -44,6 +44,12 @@
struct dentry *parent, u16 *value);
struct dentry *debugfs_create_u32(const char *name, mode_t mode,
struct dentry *parent, u32 *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);

@@ -104,6 +110,27 @@
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)
Index: linux-2.6.x/fs/debugfs/file.c
===================================================================
--- linux-2.6.x/fs/debugfs/file.c (revision 3534)
+++ linux-2.6.x/fs/debugfs/file.c (working copy)
@@ -179,6 +179,42 @@
}
EXPORT_SYMBOL_GPL(debugfs_create_u32);

+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)
{
-
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