Create the urb



gotemp_probe():

        gdev->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
        if (!gdev->int_in_urb) {
                dev_err(&interface->dev, "No free urbs available\n");
                goto error;
        }
        usb_fill_int_urb(gdev->int_in_urb, udev,
                         usb_rcvintpipe(udev,
                                        endpoint->bEndpointAddress),
                         gdev->int_in_buffer, buffer_size,
                         read_int_callback, gdev,
                         endpoint->bInterval);