pci_skel.c

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#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>


static struct pci_device_id ids[] = {
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_3), },
	{ 0, }
};
MODULE_DEVICE_TABLE(pci, ids);

static unsigned char skel_get_revision(struct pci_dev *dev)
{
	u8 revision;

	pci_read_config_byte(dev, PCI_REVISION_ID, &revision);
	return revision;
}

static int probe(struct pci_dev *dev, const struct pci_device_id *id)
{
	/* Do probing type stuff here.  
	 * Like calling request_region();
	 */
	pci_enable_device(dev);
	
	if (skel_get_revision(dev) == 0x42)
		return -ENODEV;


	return 0;
}

static void remove(struct pci_dev *dev)
{
	/* clean up any allocated resources and stuff here.
	 * like call release_region();
	 */
}

static struct pci_driver pci_driver = {
	.name = "pci_skel",
	.id_table = ids,
	.probe = probe,
	.remove = remove,
};

static int __init pci_skel_init(void)
{
	return pci_register_driver(&pci_driver);
}

static void __exit pci_skel_exit(void)
{
	pci_unregister_driver(&pci_driver);
}

MODULE_LICENSE("GPL");

module_init(pci_skel_init);
module_exit(pci_skel_exit);