PCI_COMMON_CONFIG structure (wdm.h)
The PCI_COMMON_CONFIG structure defines standard PCI configuration information returned by the HalGetBusData or HalGetBusDataByOffset routine for the input BusDataType PCIConfiguration, assuming the caller-allocated Buffer is of sufficient Length.
Syntax
typedef struct _PCI_COMMON_CONFIG : PCI_COMMON_HEADER {
UCHAR DeviceSpecific[192];
} PCI_COMMON_CONFIG, *PPCI_COMMON_CONFIG;
Inheritance
The PCI_COMMON_CONFIG structure implements PCI_COMMON_HEADER.
Members
DeviceSpecific[192]
Contains any device-specific initialization information that is available.
type0
Drivers call HalAssignSlotResources to configure these values and to get back the bus-relative values passed to other configuration routines.
BaseAddresses
Base addresses.
Reserved1
Reserved.
ROMBaseAddress
ROM base address.
Reserved2
Reserved.
InterruptLine
Interrupt line number.
InterruptPin
Interrupt pin number.
MinimumGrant
Minimum grant.
MaximumLatency
Maximum latency.
Remarks
Certain members of this structure have read-only values, so attempts to reset them are ignored. These members include the following: VendorID, DeviceID, RevisionID, ProgIf, SubClass, BaseClass, HeaderType, InterruptPin, MinimumGrant, and MaximumLatency.
Other members are provisionally read-only: that is, the system initializes them to their correct values, so drivers can safely treat them as read-only. However, they can be reset if a bus-master driver finds it necessary. These members include the following: CacheLineSize and LatencyTimer.
Requirements
| Requirement | Value |
|---|---|
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h, Miniport.h) |