cpuinfo.c

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#include <linux/fs.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>

extern const struct seq_operations cpuinfo_op;
static int cpuinfo_open(struct inode *inode, struct file *file)
{
    return seq_open(file, &cpuinfo_op);
}

static const struct file_operations proc_cpuinfo_operations = {
    .open       = cpuinfo_open,
    .read       = seq_read,
    .llseek     = seq_lseek,
    .release    = seq_release,
};

static int __init proc_cpuinfo_init(void)
{
    proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
    return 0;
}
module_init(proc_cpuinfo_init);