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can: populate netdev::dev_id for udev discrimination

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My objective is to be able to totally discriminate CAN ports on multi-port
cards via udev so as to rename them to semantically interesting/unique names
for my system (e.g., "ecuCAN" and "auxCAN" instead of "can0" and "can1").

The following patch assigns the dev_id field to match the channel number on all
multi-channel devices. I can only test my two-port Peak PCI card, but it works
as expected: ATTRS{dev_id} now expresses the port number and my udev rules now
unambiguously pick out and rename my individual CAN ports.

Signed-off-by: Christopher R. Baker <cbaker@rec.ri.cmu.edu>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> [PEAK PCAN-USB pro and EMS PCMCIA]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Christopher R. Baker
2014-03-08 11:00:20 -05:00
committed by Marc Kleine-Budde
parent c971fa2ae4
commit 3e66d0138c
10 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/can/sja1000/ems_pci.c
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@@ -323,6 +323,7 @@ static int ems_pci_add_card(struct pci_dev *pdev,
priv->cdr = EMS_PCI_CDR;
SET_NETDEV_DEV(dev, &pdev->dev);
dev->dev_id = i;
if (card->version == 1)
/* reset int flag of pita */

1
drivers/net/can/sja1000/ems_pcmcia.c
View File

@@ -211,6 +211,7 @@ static int ems_pcmcia_add_card(struct pcmcia_device *pdev, unsigned long base)
priv = netdev_priv(dev);
priv->priv = card;
SET_NETDEV_DEV(dev, &pdev->dev);
dev->dev_id = i;
priv->irq_flags = IRQF_SHARED;
dev->irq = pdev->irq;

1
drivers/net/can/sja1000/kvaser_pci.c
View File

@@ -270,6 +270,7 @@ static int kvaser_pci_add_chan(struct pci_dev *pdev, int channel,
priv->reg_base, board->conf_addr, dev->irq);
SET_NETDEV_DEV(dev, &pdev->dev);
dev->dev_id = channel;
/* Register SJA1000 device */
err = register_sja1000dev(dev);

1
drivers/net/can/sja1000/peak_pci.c
View File

@@ -642,6 +642,7 @@ static int peak_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
icr |= chan->icr_mask;
SET_NETDEV_DEV(dev, &pdev->dev);
dev->dev_id = i;
/* Create chain of SJA1000 devices */
chan->prev_dev = pci_get_drvdata(pdev);

1
drivers/net/can/sja1000/peak_pcmcia.c
View File

@@ -550,6 +550,7 @@ static int pcan_add_channels(struct pcan_pccard *card)
priv = netdev_priv(netdev);
priv->priv = card;
SET_NETDEV_DEV(netdev, &pdev->dev);
netdev->dev_id = i;
priv->irq_flags = IRQF_SHARED;
netdev->irq = pdev->irq;

1
drivers/net/can/sja1000/plx_pci.c
View File

@@ -587,6 +587,7 @@ static int plx_pci_add_card(struct pci_dev *pdev,
priv->cdr = ci->cdr;
SET_NETDEV_DEV(dev, &pdev->dev);
dev->dev_id = i;
/* Register SJA1000 device */
err = register_sja1000dev(dev);