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-rw-r--r--Documentation/pci.txt12
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
259to be handled by platform and generic code, not individual drivers. 259to be handled by platform and generic code, not individual drivers.
260 260
261 261
2628. Obsolete functions 2628. Vendor and device identifications
263~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
264For the future, let's avoid adding device ids to include/linux/pci_ids.h.
265
266PCI_VENDOR_ID_xxx for vendors, and a hex constant for device ids.
267
268Rationale: 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
2729. Obsolete functions
263~~~~~~~~~~~~~~~~~~~~~ 273~~~~~~~~~~~~~~~~~~~~~
264There are several functions which you might come across when trying to 274There are several functions which you might come across when trying to
265port an old driver to the new PCI interface. They are no longer present 275port an old driver to the new PCI interface. They are no longer present