DEVICE_LOCATION (Windows CE 5.0)
This structure assigns an IRQ to a device through the IOCTL_HAL_REQUEST_IRQ IOCTL.
typedef struct _DEVICE_LOCATION {DWORD IfcType;
DWORD BusNumber;
DWORDLogicalLoc;
PVOIDPhysicalLoc;
DWORDPin;
} DEVICE_LOCATION, *PDEVICE_LOCATION;
Members
IfcType
Element of the INTERFACE_TYPE enumeration. Typically, set to PCIBus.BusNumber
Bus number. Typically, the PCI bus number where the device is located.LogicalLoc
Logical location of device; the PCI slot and function numbers.PhysicalLoc
Reserved for future use.Pin
PCI bus interrupt pin number.The following table shows the possible values.
Interrupt pin number Value INTA 1 INTB 2 INTC 3 INTD 4
Remarks
This structure describes the location of a hardware device in terms of its interface, bus number, and logical location. It is typically used for describing PCI devices. The Pin member describes which pin (1 through 4) of a PCI device is being used for the interrupt.
The LogicalLoc member identifies the location of the device. The following table shows how the bits of the DWORD for the PCI bus are defined.
| Bits | Description |
|---|---|
| 31 through 24 | 0 |
| 23 through 16 | Bus number |
| 15 through 8 | Device number |
| 7 through 0 | Function number |
Requirements
OS Versions: Windows CE .NET 4.0 and later.
Header: Pkfuncs.h.
See Also
INTERFACE_TYPE | IOCTL_HAL_REQUEST_IRQ
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