Function bus_generic_probe

freebsd/kern/subr_bus.c:3681–3703

* @brief Helper function for implementing DEVICE_PROBE() * * This function can be used to help implement the DEVICE_PROBE() for * a bus (i.e. a device which has other devices attached to it). It * calls the DEVICE_IDENTIFY() method of each driver in the device's * devclass. */

 * devclass.
 */
int
bus_generic_probe(device_t dev)
{
	devclass_t dc = dev->devclass;
	driverlink_t dl;

	TAILQ_FOREACH(dl, &dc->drivers, link) {
		/*
		 * If this driver's pass is too high, then ignore it.
		 * For most drivers in the default pass, this will
		 * never be true.  For early-pass drivers they will
		 * only call the identify routines of eligible drivers
		 * when this routine is called.  Drivers for later
		 * passes should have their identify routines called
		 * on early-pass buses during BUS_NEW_PASS().
		 */
		if (dl->pass > bus_current_pass)
			continue;
		DEVICE_IDENTIFY(dl->driver, dev);
	}

	return (0);
}

/**
 * @brief Helper function for implementing DEVICE_ATTACH()