IoInitializeDpcRequest - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// wdm.h
VOID IoInitializeDpcRequest(
[in] PDEVICE_OBJECT DeviceObject,
[in] PIO_DPC_ROUTINE DpcRoutine
);
View the official Windows Driver Kit DDI referenceNo description available.
The IoInitializeDpcRequest routine registers a driver-supplied DpcForIsr routine.
DeviceObject [in]Supplies a pointer to the DEVICE_OBJECT structure representing the physical device that generates interrupts.
DpcRoutine [in]Supplies a pointer to the driver-supplied DpcForIsr routine.
IoInitializeDpcRequest associates a driver-supplied DpcForIsr routine with a given device object. The driver's InterruptService routine (ISR) can call IoRequestDpc to queue the DpcForIsr routine. The DpcForIsr routine completes interrupt-driven I/O operations at a lower IRQL than that of the ISR.
PnP drivers call IoInitializeDpcRequest from the AddDevice routine.
For more information, see DPC Objects and DPCs.