Atlas - proc.c
Home / systems / linux / kernel / modules
Lines: 2 | Size: 976 bytes
[Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)] 
[FILE BEGIN]
1/*
2 * Proc
3 *
4 * I try writing to proc
5 *
6 * 0x4248
7 */
8
9#include <linux/init.h>
10#include <linux/module.h>
11#include <linux/proc_fs.h>
12#include <linux/seq_file.h>
13#include <linux/mm.h>
14#include <linux/sysinfo.h>
15
16
17static int demo_show(struct seq_file *m, void *v)
18{
19	struct sysinfo si;
20	si_meminfo(&si);
21	seq_printf(m, "totalram = %lu\n", si.totalram);
22
23	return 0;
24}
25
26static int demo_open(struct inode *inode, struct file *file)
27{
28	return single_open(file, demo_show, NULL);
29}
30
31static const struct proc_ops demo_fops = {
32	.proc_open	= demo_open,
33	.proc_read	= seq_read,
34	.proc_lseek	= seq_lseek,
35	.proc_release	= single_release,
36};
37
38static int __init demo_init(void)
39{
40	if (!proc_create("demo_proc", 0444, NULL, &demo_fops))
41		return -ENOMEM;
42
43	return 0;
44}
45
46static void __exit demo_exit(void)
47{
48	remove_proc_entry("demo_proc", NULL);
49}
50
51module_init(demo_init);
52module_exit(demo_exit);
53MODULE_LICENSE("GPL");
54MODULE_AUTHOR("0x4248");
55MODULE_DESCRIPTION("A hello world driver");
56
[FILE END]
(C) 2025 0x4248
(C) 2025 4248 Media and 4248 Systems, All part of 0x4248
See LICENCE files for more information. Not all files are by 0x4248 always check Licencing.