1// SPDX-License-Identifier: GPL-2.0
2#include <linux/cpufreq.h>
3#include <linux/fs.h>
4#include <linux/init.h>
5#include <linux/proc_fs.h>
6#include <linux/seq_file.h>
7
8extern const struct seq_operations cpuinfo_op;
9
10static int cpuinfo_open(struct inode *inode, struct file *file)
11{
12 return seq_open(file, &cpuinfo_op);
13}
14
15static const struct proc_ops cpuinfo_proc_ops = {
16 .proc_flags = PROC_ENTRY_PERMANENT,
17 .proc_open = cpuinfo_open,
18 .proc_read_iter = seq_read_iter,
19 .proc_lseek = seq_lseek,
20 .proc_release = seq_release,
21};
22
23static int __init proc_cpuinfo_init(void)
24{
25 proc_create(name: "cpuinfo", mode: 0, NULL, proc_ops: &cpuinfo_proc_ops);
26 return 0;
27}
28fs_initcall(proc_cpuinfo_init);
29