NUM_CAPTURE_URBS
for (i = 0; i < NUM_CAPTURE_URBS; i++) {
for (i = 0; i < NUM_CAPTURE_URBS; i++) {
struct urb *capture_urbs[NUM_CAPTURE_URBS];
#define CAPTURE_RING_BUFFER_SIZE (CAPTURE_URB_SIZE * NUM_CAPTURE_URBS * 4)
for (i = 0; i < NUM_CAPTURE_URBS; i++) {