upd_report
struct upd_report *sc_reports;
sizeof(struct upd_report), M_USBDEV, M_WAITOK | M_ZERO);
struct upd_report *report;
free(sc->sc_reports, M_USBDEV, sc->sc_max_repid * sizeof(struct upd_report));
struct upd_report *report;
struct upd_report *report = &sc->sc_reports[repid];