1DEBUGFS_CREATE_FILE(9)      The debugfs filesystem      DEBUGFS_CREATE_FILE(9)
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NAME

6       debugfs_create_file - create a file in the debugfs filesystem
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SYNOPSIS

9       struct dentry * debugfs_create_file(const char * name, umode_t mode,
10                                           struct dentry * parent,
11                                           void * data,
12                                           const struct file_operations * fops);
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ARGUMENTS

15       name
16           a pointer to a string containing the name of the file to create.
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18       mode
19           the permission that the file should have.
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21       parent
22           a pointer to the parent dentry for this file. This should be a
23           directory dentry if set. If this paramater is NULL, then the file
24           will be created in the root of the debugfs filesystem.
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26       data
27           a pointer to something that the caller will want to get to later
28           on. The inode.i_private pointer will point to this value on the
29           open call.
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31       fops
32           a pointer to a struct file_operations that should be used for this
33           file.
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DESCRIPTION

36       This is the basic “create a file” function for debugfs. It allows for a
37       wide range of flexibility in creating a file, or a directory (if you
38       want to create a directory, the debugfs_create_dir function is
39       recommended to be used instead.)
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41       This function will return a pointer to a dentry if it succeeds. This
42       pointer must be passed to the debugfs_remove function when the file is
43       to be removed (no automatic cleanup happens if your module is unloaded,
44       you are responsible here.) If an error occurs, NULL will be returned.
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46       If debugfs is not enabled in the kernel, the value -ENODEV will be
47       returned.
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50Kernel Hackers Manual 3.10         June 2019            DEBUGFS_CREATE_FILE(9)
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