59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/pci.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include "pci.h"
|
||
|
|
|
||
|
|
int pci_hotplug (struct device *dev, char **envp, int num_envp,
|
||
|
|
char *buffer, int buffer_size)
|
||
|
|
{
|
||
|
|
struct pci_dev *pdev;
|
||
|
|
char *scratch;
|
||
|
|
int i = 0;
|
||
|
|
int length = 0;
|
||
|
|
|
||
|
|
if (!dev)
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
pdev = to_pci_dev(dev);
|
||
|
|
if (!pdev)
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
scratch = buffer;
|
||
|
|
|
||
|
|
/* stuff we want to pass to /sbin/hotplug */
|
||
|
|
envp[i++] = scratch;
|
||
|
|
length += scnprintf (scratch, buffer_size - length, "PCI_CLASS=%04X",
|
||
|
|
pdev->class);
|
||
|
|
if ((buffer_size - length <= 0) || (i >= num_envp))
|
||
|
|
return -ENOMEM;
|
||
|
|
++length;
|
||
|
|
scratch += length;
|
||
|
|
|
||
|
|
envp[i++] = scratch;
|
||
|
|
length += scnprintf (scratch, buffer_size - length, "PCI_ID=%04X:%04X",
|
||
|
|
pdev->vendor, pdev->device);
|
||
|
|
if ((buffer_size - length <= 0) || (i >= num_envp))
|
||
|
|
return -ENOMEM;
|
||
|
|
++length;
|
||
|
|
scratch += length;
|
||
|
|
|
||
|
|
envp[i++] = scratch;
|
||
|
|
length += scnprintf (scratch, buffer_size - length,
|
||
|
|
"PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
|
||
|
|
pdev->subsystem_device);
|
||
|
|
if ((buffer_size - length <= 0) || (i >= num_envp))
|
||
|
|
return -ENOMEM;
|
||
|
|
++length;
|
||
|
|
scratch += length;
|
||
|
|
|
||
|
|
envp[i++] = scratch;
|
||
|
|
length += scnprintf (scratch, buffer_size - length, "PCI_SLOT_NAME=%s",
|
||
|
|
pci_name(pdev));
|
||
|
|
if ((buffer_size - length <= 0) || (i >= num_envp))
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
envp[i] = NULL;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|