path: root/Documentation
diff options
authorIngo Oeser <netdev@axxeo.de>2006-04-18 11:20:55 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-04-27 13:00:51 -0700
commit9b860b8c4bde5949b272968597d1426d53080532 (patch)
tree659005ad75c3fb4d2de40c289c81a01275cdb9a0 /Documentation
parent[PATCH] PCI: fix via irq SATA patch (diff)
[PATCH] PCI: Documentation: no more device ids
Document that we don't like to add more PCI device ids but are happy to accept PCI vendor ids for linux/include/pci_ids.h Original text from Jeff Garzik. Signed-off-by: Ingo Oeser <netdev@axxeo.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation')
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
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