cpuinfo.c 670 B

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  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. extern const struct seq_operations cpuinfo_op;
  8. static int cpuinfo_open(struct inode *inode, struct file *file)
  9. {
  10. return seq_open(file, &cpuinfo_op);
  11. }
  12. static const struct proc_ops cpuinfo_proc_ops = {
  13. .proc_flags = PROC_ENTRY_PERMANENT,
  14. .proc_open = cpuinfo_open,
  15. .proc_read_iter = seq_read_iter,
  16. .proc_lseek = seq_lseek,
  17. .proc_release = seq_release,
  18. };
  19. static int __init proc_cpuinfo_init(void)
  20. {
  21. proc_create("cpuinfo", 0, NULL, &cpuinfo_proc_ops);
  22. return 0;
  23. }
  24. fs_initcall(proc_cpuinfo_init);