uhci_td
int uhci_td(uintptr_t, uint_t, int, const mdb_arg_t *);
{ "uhci_td", ": [-d]", "print UHCI TD", uhci_td, NULL },
struct uhci_td *td_tailp; /* Pointer to the last TD of QH */
struct uhci_td *qh_td_prev;
struct uhci_td *tw_td_next;
struct uhci_td *outst_td_next;
struct uhci_td *outst_td_prev;
struct uhci_td *isoc_next;
struct uhci_td *isoc_prev;