call_driver
return call_driver(device, B_MULTI_GET_DESCRIPTION, description);
return call_driver(device, B_MULTI_GET_ENABLED_CHANNELS, enable);
return call_driver(device, B_MULTI_SET_ENABLED_CHANNELS, enable);
return call_driver(device, B_MULTI_GET_GLOBAL_FORMAT, info);
return call_driver(device, B_MULTI_SET_GLOBAL_FORMAT, info);
return call_driver(device, B_MULTI_GET_BUFFERS, list);
return call_driver(device, B_MULTI_BUFFER_EXCHANGE, info);
return call_driver(device, B_MULTI_LIST_MIX_CONTROLS, info);
return call_driver(device, B_MULTI_GET_MIX, info);
return call_driver(device, B_MULTI_SET_MIX, info);