size_t total_len);
unsigned int vcc_poll(struct file *file, struct socket *sock, poll_table *wait);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
+int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, int optlen);
int vcc_getsockopt(struct socket *sock, int level, int optname,