usb_desc_iter_peek
const usb_descriptor_t *desc = usb_desc_iter_peek(iter);
while ((desc = usb_desc_iter_peek(iter)) != NULL &&
if ((desc = usb_desc_iter_peek(iter)) != NULL &&
const usb_descriptor_t *usb_desc_iter_peek(usbd_desc_iter_t *);
while ((desc = usb_desc_iter_peek(iter)) != NULL) {