debugfs_create_x32 — create a debugfs file that is used to read and write an unsigned 32-bit value
struct dentry * debugfs_create_x32
(const char * name, mode_t mode, struct dentry * parent, u32 * value);
a pointer to a string containing the name of the file to create.
the permission that the file should have
a pointer to the parent dentry for this file. This should be a directory dentry if set. If this parameter is NULL, then the file will be created in the root of the debugfs filesystem.
a pointer to the variable that the file should read to and write from.