projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #include <linux/kernel.h> |
| 2 | #include <linux/pci.h> | |
| 3 | #include <linux/module.h> | |
| 4 | #include "pci.h" | |
| 5 | ||
| 6 | int pci_hotplug (struct device *dev, char **envp, int num_envp, | |
| 7 | char *buffer, int buffer_size) | |
| 8 | { | |
| 9 | struct pci_dev *pdev; | |
| 10 | char *scratch; | |
| 11 | int i = 0; | |
| 12 | int length = 0; | |
| 13 | ||
| 14 | if (!dev) | |
| 15 | return -ENODEV; | |
| 16 | ||
| 17 | pdev = to_pci_dev(dev); | |
| 18 | if (!pdev) | |
| 19 | return -ENODEV; | |
| 20 | ||
| 21 | scratch = buffer; | |
| 22 | ||
| 23 | /* stuff we want to pass to /sbin/hotplug */ | |
| 24 | envp[i++] = scratch; | |
| 25 | length += scnprintf (scratch, buffer_size - length, "PCI_CLASS=%04X", | |
| 26 | pdev->class); | |
| 27 | if ((buffer_size - length <= 0) || (i >= num_envp)) | |
| 28 | return -ENOMEM; | |
| 29 | ++length; | |
| 30 | scratch += length; | |
| 31 | ||
| 32 | envp[i++] = scratch; | |
| 33 | length += scnprintf (scratch, buffer_size - length, "PCI_ID=%04X:%04X", | |
| 34 | pdev->vendor, pdev->device); | |
| 35 | if ((buffer_size - length <= 0) || (i >= num_envp)) | |
| 36 | return -ENOMEM; | |
| 37 | ++length; | |
| 38 | scratch += length; | |
| 39 | ||
| 40 | envp[i++] = scratch; | |
| 41 | length += scnprintf (scratch, buffer_size - length, | |
| 42 | "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor, | |
| 43 | pdev->subsystem_device); | |
| 44 | if ((buffer_size - length <= 0) || (i >= num_envp)) | |
| 45 | return -ENOMEM; | |
| 46 | ++length; | |
| 47 | scratch += length; | |
| 48 | ||
| 49 | envp[i++] = scratch; | |
| 50 | length += scnprintf (scratch, buffer_size - length, "PCI_SLOT_NAME=%s", | |
| 51 | pci_name(pdev)); | |
| 52 | if ((buffer_size - length <= 0) || (i >= num_envp)) | |
| 53 | return -ENOMEM; | |
| 54 | ||
| 55 | envp[i] = NULL; | |
| 56 | ||
| 57 | return 0; | |
| 58 | } |