libusb_fill_bulk_transfer(xfer_in, usb->devhdl, LASCAR_EP_IN,
buf, 4096, lascar_el_usb_receive_transfer, cb_data, 100);
if ((ret = libusb_submit_transfer(xfer_in) != 0)) {
libusb_fill_bulk_transfer(xfer_in, usb->devhdl, LASCAR_EP_IN,
buf, 4096, lascar_el_usb_receive_transfer, cb_data, 100);
if ((ret = libusb_submit_transfer(xfer_in) != 0)) {