hotplug.c

来自「linux 内核源代码」· C语言 代码 · 共 38 行

#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/module.h>
#include "pci.h"

int pci_uevent(struct device *dev, struct kobj_uevent_env *env)
{
	struct pci_dev *pdev;

	if (!dev)
		return -ENODEV;

	pdev = to_pci_dev(dev);
	if (!pdev)
		return -ENODEV;

	if (add_uevent_var(env, "PCI_CLASS=%04X", pdev->class))
		return -ENOMEM;

	if (add_uevent_var(env, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
		return -ENOMEM;

	if (add_uevent_var(env, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
			   pdev->subsystem_device))
		return -ENOMEM;

	if (add_uevent_var(env, "PCI_SLOT_NAME=%s", pci_name(pdev)))
		return -ENOMEM;

	if (add_uevent_var(env, "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
			   pdev->vendor, pdev->device,
			   pdev->subsystem_vendor, pdev->subsystem_device,
			   (u8)(pdev->class >> 16), (u8)(pdev->class >> 8),
			   (u8)(pdev->class)))
		return -ENOMEM;
	return 0;
}