On Wed, May 20, 2020 at 12:02:26AM -0700, Jeff Kirsher wrote: > +static const struct virtbus_dev_id sof_ipc_virtbus_id_table[] = { > + {"sof-ipc-test"}, > + {}, > +}; > + > +static struct sof_client_drv sof_ipc_test_client_drv = { > + .name = "sof-ipc-test-client-drv", > + .type = SOF_CLIENT_IPC, > + .virtbus_drv = { > + .driver = { > + .name = "sof-ipc-test-virtbus-drv", > + }, > + .id_table = sof_ipc_virtbus_id_table, > + .probe = sof_ipc_test_probe, > + .remove = sof_ipc_test_remove, > + .shutdown = sof_ipc_test_shutdown, > + }, > +}; > + > +module_sof_client_driver(sof_ipc_test_client_drv); > + > +MODULE_DESCRIPTION("SOF IPC Test Client Driver"); > +MODULE_LICENSE("GPL v2"); > +MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT); > +MODULE_ALIAS("virtbus:sof-ipc-test"); Usually the MODULE_ALIAS happens automatically rhough the struct virtbus_dev_id - is something missing in the enabling patches? JAson