IRQ_PRIORITY - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// miniport.h
typedef enum _IRQ_PRIORITY {
IrqPriorityUndefined,
IrqPriorityLow,
IrqPriorityNormal,
IrqPriorityHigh
} IRQ_PRIORITY, *PIRQ_PRIORITY;
View the official Windows Driver Kit DDI reference// wdm.h
typedef enum _IRQ_PRIORITY {
IrqPriorityUndefined,
IrqPriorityLow,
IrqPriorityNormal,
IrqPriorityHigh
} IRQ_PRIORITY, *PIRQ_PRIORITY;
View the official Windows Driver Kit DDI referenceNo description available.
The IRQ_PRIORITY enumeration type indicates the priority the system should give to servicing a device's interrupts.
IrqPriorityUndefinedSpecifies that the device does not require any particular priority for its interrupts.
IrqPriorityLowSpecifies that the device's interrupts are of low priority. This setting is appropriate for devices that can tolerate higher-than-normal latency.
IrqPriorityNormalSpecifies that the device's interrupts are of normal priority.
IrqPriorityHighSpecifies that the device's interrupts are of high priority. This setting is appropriate for devices that require low latency.
The system uses IRQ_PRIORITY to assign IRQLs for devices. For example, it might assign a higher IRQL to a device that has an IRQ_PRIORITY of IrqPriorityHigh than it does to a device that has an IRQ_PRIORITY of IrqPriorityLow.
The IRQ_PRIORITY enumeration type indicates the priority the system should give to servicing a device's interrupts.
IrqPriorityUndefinedSpecifies that the device does not require any particular priority for its interrupts.
IrqPriorityLowSpecifies that the device's interrupts are of low priority. This setting is appropriate for devices that can tolerate higher-than-normal latency.
IrqPriorityNormalSpecifies that the device's interrupts are of normal priority.
IrqPriorityHighSpecifies that the device's interrupts are of high priority. This setting is appropriate for devices that require low latency.
The system uses IRQ_PRIORITY to assign IRQLs for devices. For example, it might assign a higher IRQL to a device that has an IRQ_PRIORITY of IrqPriorityHigh than it does to a device that has an IRQ_PRIORITY of IrqPriorityLow.