Function device_sysctl_update

freebsd/kern/subr_bus.c:337–345

}

static void
device_sysctl_update(device_t dev)
{
	devclass_t dc = dev->devclass;

	if (dev->sysctl_tree == NULL)
		return;
	sysctl_rename_oid(dev->sysctl_tree, dev->nameunit + strlen(dc->name));
}

static void
device_sysctl_fini(device_t dev)