The "/sys/devices/pciDDDD:bb/DDDD:bb:dd.f" path requires that
you know about any bridges on the way to the device.  Use
"/sys/bus/pci/devices/DDDD:bb:dd.f" form instead.

--- programs/Xserver/hw/xfree86/os-support/bus/linuxPci.c.orig	2006-03-05 03:43:41.000000000 -0700
+++ programs/Xserver/hw/xfree86/os-support/bus/linuxPci.c	2006-03-05 03:52:59.000000000 -0700
@@ -773,8 +773,8 @@
     bus  = PCI_BUS_NO_DOMAIN(PCI_BUS_FROM_TAG(Tag));
     dev  = PCI_DEV_FROM_TAG(Tag);
     func = PCI_FUNC_FROM_TAG(Tag);
-    sprintf(file, "/sys/devices/pci%04x:%02x/%04x:%02x:%02x.%1x/rom",
-	    dom, bus, dom, bus, dev, func);
+    sprintf(file, "/sys/bus/pci/devices/%04x:%02x:%02x.%1x/rom",
+	    dom, bus, dev, func);
 
     /*
      * If the caller wants the ROM and the sysfs rom interface exists,
--- programs/Xserver/hw/xfree86/os-support/linux/lnx_pci.c.orig	2006-03-05 03:54:19.000000000 -0700
+++ programs/Xserver/hw/xfree86/os-support/linux/lnx_pci.c	2006-03-05 03:56:28.000000000 -0700
@@ -43,8 +43,8 @@
 
     pciInfoFromTag(tag, &domain, &bus, &dev, &fn);
 
-    sprintf(c, "/sys/devices/pci%04x:%02x/%04x:%02x:%02x.%1x/resource",
-	    domain, bus, domain, bus, dev, fn);
+    sprintf(c, "/sys/bus/pci/devices/%04x:%02x:%02x.%1x/resource",
+	    domain, bus, dev, fn);
     if (file = fopen(c, "r")) {
         for (resource=0; resource != index; resource++)
             fgets(c, 0x1ff, file);
@@ -134,8 +134,8 @@
 
     pciInfoFromTag(tag, &domain, &bus, &dev, &fn);
 
-    sprintf(c, "/sys/devices/pci%04x:%02x/%04x:%02x:%02x.%1x/resource",
-	    domain, bus, domain, bus, dev, fn);
+    sprintf(c, "/sys/bus/pci/devices/%04x:%02x:%02x.%1x/resource",
+	    domain, bus, dev, fn);
     if (file = fopen(c, "r")) {
         for (resource=0; resource != index; resource++)
             fgets(c, 0x1ff, file);
@@ -212,8 +212,8 @@
 
     pciInfoFromTag(tag, &domain, &bus, &dev, &fn);
 
-    sprintf(c, "/sys/devices/pci%04x:%02x/%04x:%02x:%02x.%1x/resource",
-	    domain, bus, domain, bus, dev, fn);
+    sprintf(c, "/sys/bus/pci/devices/%04x:%02x:%02x.%1x/resource",
+	    domain, bus, dev, fn);
     if (file = fopen(c, "r")) {
         unsigned long savePtr;
         for (ndx=0; ndx < 7; ndx++) {