NRURBS
struct urb *urb[NRURBS]; /* data urb table */
urb->start_frame = frame + NRURBS * nr_of_packs(); // let hcd do rollover sanity checks
for (u = 0; u < NRURBS; u++) {
for (u = 0; u < NRURBS; u++) {
for (i = 0; i < NRURBS; i++)
for (i = 0; i < NRURBS; i++) {
for (i = 0; i < NRURBS; i++) {
desc->offset += desc->length * NRURBS * nr_of_packs();
for (i = 0; i < NRURBS; i++)
for (i = 0; i < NRURBS; i++) {
for (u = 0; u < NRURBS; u++) {