diff options
Diffstat (limited to 'Documentation/pci.txt')
-rw-r--r-- | Documentation/pci.txt | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/pci.txt b/Documentation/pci.txt index 711210b38f5f..66bbbf1d1ef6 100644 --- a/Documentation/pci.txt +++ b/Documentation/pci.txt | |||
@@ -259,7 +259,17 @@ on the bus need to be capable of doing it, so this is something which needs | |||
259 | to be handled by platform and generic code, not individual drivers. | 259 | to be handled by platform and generic code, not individual drivers. |
260 | 260 | ||
261 | 261 | ||
262 | 8. Obsolete functions | 262 | 8. Vendor and device identifications |
263 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
264 | For the future, let's avoid adding device ids to include/linux/pci_ids.h. | ||
265 | |||
266 | PCI_VENDOR_ID_xxx for vendors, and a hex constant for device ids. | ||
267 | |||
268 | Rationale: PCI_VENDOR_ID_xxx constants are re-used, but device ids are not. | ||
269 | Further, device ids are arbitrary hex numbers, normally used only in a | ||
270 | single location, the pci_device_id table. | ||
271 | |||
272 | 9. Obsolete functions | ||
263 | ~~~~~~~~~~~~~~~~~~~~~ | 273 | ~~~~~~~~~~~~~~~~~~~~~ |
264 | There are several functions which you might come across when trying to | 274 | There are several functions which you might come across when trying to |
265 | port an old driver to the new PCI interface. They are no longer present | 275 | port an old driver to the new PCI interface. They are no longer present |