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Commit ede07a1f authored by Michael Grzeschik's avatar Michael Grzeschik Committed by David S. Miller
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arcnet: com20020-pci: add attribute to readback backplane status 



We add the sysfs interface the read back the backplane
status of the interface.

Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 05fcd31c

drivers/net/arcnet/com20020-pci.c

+22 −0
Original line number Diff line number Diff line
@@ -93,6 +93,27 @@ static void led_recon_set(struct led_classdev *led_cdev, 
	outb(!!value, priv->misc + ci->leds[card->index].red);

}



static ssize_t backplane_mode_show(struct device *dev,

				   struct device_attribute *attr,

				   char *buf)

{

	struct net_device *net_dev = to_net_dev(dev);

	struct arcnet_local *lp = netdev_priv(net_dev);



	return sprintf(buf, "%s\n", lp->backplane ? "true" : "false");

}

static DEVICE_ATTR_RO(backplane_mode);



static struct attribute *com20020_state_attrs[] = {

	&dev_attr_backplane_mode.attr,

	NULL,

};



static struct attribute_group com20020_state_group = {

	.name = NULL,

	.attrs = com20020_state_attrs,

};



static void com20020pci_remove(struct pci_dev *pdev);



static int com20020pci_probe(struct pci_dev *pdev,
@@ -168,6 +189,7 @@ static int com20020pci_probe(struct pci_dev *pdev, 


		dev->base_addr = ioaddr;

		dev->dev_addr[0] = node;

		dev->sysfs_groups[0] = &com20020_state_group;

		dev->irq = pdev->irq;

		lp->card_name = "PCI COM20020";

		lp->card_flags = ci->flags;