calc_sync_xfer
calc_sync_xfer(message[3] * 4, message[4]);
calc_sync_xfer(period * 4, length);
id = calc_sync_xfer(hostdata->
id = calc_sync_xfer(ucp[3], ucp[4],
id = calc_sync_xfer(ucp[3], ucp[4],
calc_sync_xfer(hostdata->default_sx_per / 4,
calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF,
calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF,
calc_sync_xfer(hostdata->default_sx_per