i2c and pci patches added

1 files changed, 108 insertions, 0 deletions

diff --git a/driver/debugfs-add-debugfs_create_blob-helper-for-exporting-binary-data.patch b/driver/debugfs-add-debugfs_create_blob-helper-for-exporting-binary-data.patch
new file mode 100644
index 0000000000000..ccd88b9b74e75
--- /dev/null
+++ b/driver/debugfs-add-debugfs_create_blob-helper-for-exporting-binary-data.patch
@@ -0,0 +1,108 @@
+From michael@ozlabs.org Tue Mar  7 02:42:37 2006
+To: Greg Kroah-Hartman <greg@kroah.com>
+From: Michael Ellerman <michael@ellerman.id.au>
+Date: Tue, 07 Mar 2006 21:41:59 +1100
+Subject: debugfs: Add debugfs_create_blob() helper for exporting binary data
+Message-Id: <20060307104225.E0DDA679E6@ozlabs.org>
+
+I wanted to export a binary blob via debugfs, and although it was pretty easy
+it seems like it'd be easier if there was a helper for it. It's a pity we need
+the wrapper struct but I can't see a cleaner way to do it.
+
+Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
+Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
+---
+ fs/debugfs/file.c       |   46 ++++++++++++++++++++++++++++++++++++++++++++++
+ include/linux/debugfs.h |   15 +++++++++++++++
+ 2 files changed, 61 insertions(+)
+
+--- gregkh-2.6.orig/fs/debugfs/file.c
++++ gregkh-2.6/fs/debugfs/file.c
+@@ -251,3 +251,49 @@ struct dentry *debugfs_create_bool(const
+ }
+ EXPORT_SYMBOL_GPL(debugfs_create_bool);
+ 
++static ssize_t read_file_blob(struct file *file, char __user *user_buf,
++			      size_t count, loff_t *ppos)
++{
++	struct debugfs_blob_wrapper *blob = file->private_data;
++	return simple_read_from_buffer(user_buf, count, ppos, blob->data,
++			blob->size);
++}
++
++static struct file_operations fops_blob = {
++	.read =		read_file_blob,
++	.open =		default_open,
++};
++
++/**
++ * debugfs_create_blob - create a file in the debugfs filesystem that is
++ * used to read and write a binary blob.
++ *
++ * @name: a pointer to a string containing the name of the file to create.
++ * @mode: the permission that the file should have
++ * @parent: a pointer to the parent dentry for this file.  This should be a
++ *          directory dentry if set.  If this paramater is NULL, then the
++ *          file will be created in the root of the debugfs filesystem.
++ * @blob: a pointer to a struct debugfs_blob_wrapper which contains a pointer
++ *        to the blob data and the size of the data.
++ *
++ * This function creates a file in debugfs with the given name that exports
++ * @blob->data as a binary blob. If the @mode variable is so set it can be
++ * read from. Writing is not supported.
++ *
++ * This function will return a pointer to a dentry if it succeeds.  This
++ * pointer must be passed to the debugfs_remove() function when the file is
++ * to be removed (no automatic cleanup happens if your module is unloaded,
++ * you are responsible here.)  If an error occurs, NULL will be returned.
++ *
++ * If debugfs is not enabled in the kernel, the value -ENODEV will be
++ * returned.  It is not wise to check for this value, but rather, check for
++ * NULL or !NULL instead as to eliminate the need for #ifdef in the calling
++ * code.
++ */
++struct dentry *debugfs_create_blob(const char *name, mode_t mode,
++				   struct dentry *parent,
++				   struct debugfs_blob_wrapper *blob)
++{
++	return debugfs_create_file(name, mode, parent, blob, &fops_blob);
++}
++EXPORT_SYMBOL_GPL(debugfs_create_blob);
+--- gregkh-2.6.orig/include/linux/debugfs.h
++++ gregkh-2.6/include/linux/debugfs.h
+@@ -21,6 +21,11 @@
+ 
+ struct file_operations;
+ 
++struct debugfs_blob_wrapper {
++	void *data;
++	unsigned long size;
++};
++
+ #if defined(CONFIG_DEBUG_FS)
+ struct dentry *debugfs_create_file(const char *name, mode_t mode,
+ 				   struct dentry *parent, void *data,
+@@ -39,6 +44,9 @@ struct dentry *debugfs_create_u32(const 
+ struct dentry *debugfs_create_bool(const char *name, mode_t mode,
+ 				  struct dentry *parent, u32 *value);
+ 
++struct dentry *debugfs_create_blob(const char *name, mode_t mode,
++				  struct dentry *parent,
++				  struct debugfs_blob_wrapper *blob);
+ #else
+ 
+ #include <linux/err.h>
+@@ -94,6 +102,13 @@ static inline struct dentry *debugfs_cre
+ 	return ERR_PTR(-ENODEV);
+ }
+ 
++static inline struct dentry *debugfs_create_blob(const char *name, mode_t mode,
++				  struct dentry *parent,
++				  struct debugfs_blob_wrapper *blob)
++{
++	return ERR_PTR(-ENODEV);
++}
++
+ #endif
+ 
+ #endif