Add a way to store a new interrupt_line value to the PCI module. It both updates

the cached pci_info and writes the new value into PCI config space. Drivers
using either mechanism to enumerate devices will therefore get the updated
value.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41364 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/drivers/PCI.h

@@ -155,6 +155,7 @@ struct pci_module_info {
 						uchar	cap_id,
 						uchar	*offset
 					);
+
 	status_t		(*reserve_device) (
 						uchar bus,
 						uchar device,
@@ -167,6 +168,12 @@ struct pci_module_info {
 						uchar function,
 						const char *driver_name,
 						void *cookie);
+
+	status_t		(*update_interrupt_line) (
+						uchar bus,
+						uchar device,
+						uchar function,
+						uchar newInterruptLineValue);
 };
 
 #define	B_PCI_MODULE_NAME		"bus_managers/pci/v1"