ppp_device_fops   892 drivers/net/ppp/ppp_generic.c static const struct file_operations ppp_device_fops = {
ppp_device_fops  1101 drivers/net/ppp/ppp_generic.c 	if (file->f_op != &ppp_device_fops || file->private_data) {
ppp_device_fops  1178 drivers/net/ppp/ppp_generic.c 	err = register_chrdev(PPP_MAJOR, "ppp", &ppp_device_fops);