proc fs 例子
static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { if (count) { char c; if (get_user(c, buf)) return -EFAULT; __handle_sysrq(c, NULL, 0); } return count; } static const struct file_operations proc_sysrq_trigger_operations = { .write = write_sysrq_trigger, }; static void sysrq_init_procfs(void) { if (!proc_create("sysrq-trigger", S_IWUSR, NULL, &proc_sysrq_trigger_operations)) pr_err("Failed to register proc interface\n"); }
补充:软件开发 , C++ ,