diff --git a/libfprint/drivers/vfs5011.c b/libfprint/drivers/vfs5011.c
index 28b77b6..3794996 100644
--- a/libfprint/drivers/vfs5011.c
+++ b/libfprint/drivers/vfs5011.c
@@ -244,61 +244,6 @@ static void usb_exchange_async(struct fpi_ssm *ssm, struct usbexchange_data *dat
 	fpi_ssm_start_subsm(ssm, subsm);
 }
 
-static int usb_exchange_sync(struct usbexchange_data *data)
-{
-	for (int i = 0; i < data->stepcount; i++) {
-		struct usb_action *action = &data->actions[i];
-		int ret = -EINVAL;
-		int transferred = 0;
-		switch (action->type) {
-		case ACTION_SEND:
-			fp_dbg("Sending %s", action->name);
-			ret = libusb_bulk_transfer(data->device->udev, action->endpoint, action->data,
-			                           action->size, &transferred, data->timeout);
-			if (ret != 0) {
-				fp_err("USB transfer error: %s", strerror(ret));
-				return ret;
-			}
-			if (transferred != action->size) {
-				/* Data sended mismatch with expected, return protocol error */
-				fp_err("length mismatch, got %d, expected %d",
-					transferred, action->size);
-				return -EIO;
-			}
-			break;
-			
-		case ACTION_RECEIVE:
-			fp_dbg("Receiving %d bytes", action->size);
-			ret = libusb_bulk_transfer(data->device->udev, action->endpoint, data->receive_buf,
-			                           action->size, &transferred, data->timeout);
-			if (ret != 0) {
-				fp_err("USB transfer error: %s", strerror(ret));
-				return ret;
-			}
-			if (action->data != NULL) {
-				if (transferred != action->correct_reply_size) {
-					fp_err("Got %d bytes instead of %d", transferred,
-						action->correct_reply_size);
-					return -EIO;
-				}
-				if (memcmp(data->receive_buf, action->data, action->correct_reply_size) != 0) {
-					fp_dbg("Wrong reply:");
-					dump(data->receive_buf, transferred);
-					return -EIO;
-				}
-			} else
-				fp_dbg("Got %d bytes out of %d", transferred,
-					action->size);
-			break;
-			
-		default:
-			fp_err("Bug detected: invalid action %d", action->type);
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-
 //====================== utils =======================
 
 #if VFS5011_LINE_SIZE > INT_MAX/(256*256)
@@ -858,13 +803,7 @@ static void activate_loop(struct fpi_ssm *ssm)
 		data->init_sequence.device = dev;
 		data->init_sequence.receive_buf = malloc(VFS5011_RECEIVE_BUF_SIZE);
 		data->init_sequence.timeout = 1000;
-		r = usb_exchange_sync(&data->init_sequence);
-		if (r != 0) {
-			fp_err("Failed to initiate the capture");
-			fpi_imgdev_session_error(dev, r);
-			fpi_ssm_mark_aborted(ssm, r);
-		} else
-			fpi_ssm_next_state(ssm);
+		usb_exchange_async(ssm, &data->init_sequence);
 		break;
 		
 	case DEV_ACTIVATE_INIT_COMPLETE: