#define VOPFUNC int (*)(void *)
-extern int soo_ioctl(struct fileproc *fp, u_long cmd, caddr_t data, vfs_context_t ctx);
-extern int soo_select(struct fileproc *fp, int which, void * wql, vfs_context_t ctx);
-
int (**fifo_vnodeop_p)(void *);
struct vnodeopv_entry_desc fifo_vnodeop_entries[] = {
{ &vnop_default_desc, (VOPFUNC)vn_default_error },