X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fpci.txt;h=66bbbf1d1ef64e90cede27c2738290c5d6b4c2ef;hb=d702ccb342e49f7591df5a87c3857c698183b0fa;hp=711210b38f5fe4c1dfa84db9392cf0c5c75dfa49;hpb=9fe66dfd8846706ff11ed7990d06c92644973bd8;p=linux-2.6

diff --git a/Documentation/pci.txt b/Documentation/pci.txt
index 711210b38f..66bbbf1d1e 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
 to be handled by platform and generic code, not individual drivers.
 
 
-8. Obsolete functions
+8. Vendor and device identifications
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+For the future, let's avoid adding device ids to include/linux/pci_ids.h.
+
+PCI_VENDOR_ID_xxx for vendors, and a hex constant for device ids.
+
+Rationale:  PCI_VENDOR_ID_xxx constants are re-used, but device ids are not.
+    Further, device ids are arbitrary hex numbers, normally used only in a
+    single location, the pci_device_id table.
+
+9. Obsolete functions
 ~~~~~~~~~~~~~~~~~~~~~
 There are several functions which you might come across when trying to
 port an old driver to the new PCI interface.  They are no longer present