1 #include <linux/fs.h> 2 #include <linux/init.h> 3 #include <linux/kernel.h> 4 #include <linux/proc_fs.h> 5 #include <linux/seq_file.h> 6 #include <linux/utsname.h> 7 8 static int version_proc_show(struct seq_file *m, void *v) 9 { 10 seq_printf(m, linux_proc_banner, 11 utsname()->sysname, 12 utsname()->release, 13 utsname()->version); 14 return 0; 15 } 16 17 static int version_proc_open(struct inode *inode, struct file *file) 18 { 19 return single_open(file, version_proc_show, NULL); 20 } 21 22 static const struct file_operations version_proc_fops = { 23 .open = version_proc_open, 24 .read = seq_read, 25 .llseek = seq_lseek, 26 .release = single_release, 27 }; 28 29 static int __init proc_version_init(void) 30 { 31 proc_create("version", 0, NULL, &version_proc_fops); 32 return 0; 33 } 34 fs_initcall(proc_version_init); 35