Main Loop

void loop() {
  USBH_Process(&USB_OTG_dev, &USB_Host);

  if(!probed && UVCD.state == USBHUVC_STATE_ACTIVE)
  {
    UVCD.pc.bFormatIndex = 3;
    UVCD.pc.dwFrameInterval = 5000000; // Frame interval in 100ns Units (5000000 = 0.5s per frame)
    usbhuvcProbe(&USB_OTG_dev);
    UVCD.pc = UVCD.pc_max;
    UVCD.pc.bmHint = 0x00;
    usbhuvcCommit(&USB_OTG_dev);
    set_vs_interface(&USB_OTG_dev, 800);
    USBH_IsocReceiveData(&USB_OTG_dev, UVCD.iso_buff, UVCD.vs_interfaces[UVCD.vs_alt_current_index].isoEP.wMaxPacketSize, UVCD.hc_iso);
    probed = true;
    streaming = true;
  }

  if(streaming)
  {
    if(HCD_GetURB_State(&USB_OTG_dev, UVCD.hc_iso) == URB_DONE)
      USBH_IsocReceiveData(&USB_OTG_dev, UVCD.iso_buff, UVCD.vs_interfaces[UVCD.vs_alt_current_index].isoEP.wMaxPacketSize, UVCD.hc_iso);
  }
}