| Chris Wright | c70e0d9 | 2008-11-25 21:17:13 -0800 | [diff] [blame] | 1 | /* pci-stub - simple stub driver to reserve a pci device |
| 2 | * |
| 3 | * Copyright (C) 2008 Red Hat, Inc. |
| 4 | * Author: |
| 5 | * Chris Wright |
| 6 | * |
| 7 | * This work is licensed under the terms of the GNU GPL, version 2. |
| 8 | * |
| 9 | * Usage is simple, allocate a new id to the stub driver and bind the |
| 10 | * device to it. For example: |
| 11 | * |
| 12 | * # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/new_id |
| 13 | * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/e1000e/unbind |
| 14 | * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/pci-stub/bind |
| 15 | * # ls -l /sys/bus/pci/devices/0000:00:19.0/driver |
| 16 | * .../0000:00:19.0/driver -> ../../../bus/pci/drivers/pci-stub |
| 17 | */ |
| 18 | |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/pci.h> |
| 21 | |
| 22 | static int pci_stub_probe(struct pci_dev *dev, const struct pci_device_id *id) |
| 23 | { |
| 24 | return 0; |
| 25 | } |
| 26 | |
| 27 | static struct pci_driver stub_driver = { |
| 28 | .name = "pci-stub", |
| 29 | .id_table = NULL, /* only dynamic id's */ |
| 30 | .probe = pci_stub_probe, |
| 31 | }; |
| 32 | |
| 33 | static int __init pci_stub_init(void) |
| 34 | { |
| 35 | return pci_register_driver(&stub_driver); |
| 36 | } |
| 37 | |
| 38 | static void __exit pci_stub_exit(void) |
| 39 | { |
| 40 | pci_unregister_driver(&stub_driver); |
| 41 | } |
| 42 | |
| 43 | module_init(pci_stub_init); |
| 44 | module_exit(pci_stub_exit); |
| 45 | |
| 46 | MODULE_LICENSE("GPL"); |
| 47 | MODULE_AUTHOR("Chris Wright <chrisw@sous-sol.org>"); |