atm_backend_t
atm_backend_t backend_num; /* ATM_BACKEND_BR2684 */
atm_backend_t backend_num; /* ATM_BACKEND_BR2684 */
#define ATM_SETBACKEND _IOW('a',ATMIOC_SPECIAL+2,atm_backend_t)
#define ATM_NEWBACKENDIF _IOW('a',ATMIOC_SPECIAL+3,atm_backend_t)
atm_backend_t backend_num; /* ATM_BACKEND_PPP */
atm_backend_t b;
err = get_user(b, (atm_backend_t __user *) argp);
atm_backend_t backend;
error = get_user(backend, (atm_backend_t __user *)argp);
atm_backend_t b;
if (get_user(b, (atm_backend_t __user *) argp))