示例#1
0
static void pcmcia_bus_rescan(struct pcmcia_socket *skt)
{
	int no_devices=0;
	unsigned long flags;

	/* must be called with skt_sem held */
	spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
	if (list_empty(&skt->devices_list))
		no_devices=1;
	spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);

	/* if no devices were added for this socket yet because of
	 * missing resource information or other trouble, we need to
	 * do this now. */
	if (no_devices) {
		int ret = pcmcia_card_add(skt);
		if (ret)
			return;
	}

	/* some device information might have changed because of a CIS
	 * update or because we can finally read it correctly... so
	 * determine it again, overwriting old values if necessary. */
	bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);

	/* we re-scan all devices, not just the ones connected to this
	 * socket. This does not matter, though. */
	bus_rescan_devices(&pcmcia_bus_type);
}
示例#2
0
/*
 * This workers main task is to wait for OP_OPR_ALIVE
 * from TOP FW until ALIVE_MSG_TIMOUT timeout is elapsed.
 * When OP_OPR_ALIVE received it will issue
 * a call to "bus_rescan_devices".
 */
static void iwmct_rescan_worker(struct work_struct *ws)
{
	struct iwmct_priv *priv;
	int ret;

	priv = container_of(ws, struct iwmct_priv, bus_rescan_worker);

	LOG_INFO(priv, FW_MSG, "Calling bus_rescan\n");

	ret = bus_rescan_devices(priv->func->dev.bus);
	if (ret < 0)
		LOG_INFO(priv, INIT, "bus_rescan_devices FAILED!!!\n");
}
示例#3
0
/*
 * test_bus_rescan
 *	make test call to bus_rescan_devices which
 *	will rescan the bus and attempt to match devices
 *	to drivers, will return 0 for no matches or
 *	the number of matches made, check that the
 *	value returned is not negative
 */
static int test_bus_rescan() {
	int count = 0;

	count = bus_rescan_devices(&test_bus_type);
	if (count == 0)
		printk("tbase: found no device/driver matches\n");
	else if (count > 0)
		printk("tbase; found match\n");
	else {
		printk("tbase: bus rescan failed\n");
		return count;
	}

	return 0;
}
示例#4
0
static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);

	if (!count)
		return -EINVAL;

	down(&p_dev->socket->skt_sem);
	p_dev->allow_func_id_match = 1;
	up(&p_dev->socket->skt_sem);

	bus_rescan_devices(&pcmcia_bus_type);

	return count;
}