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StorPortQueryTimerMinInterval queries the minimum timer resolution that is supported by the system clock.
Syntax
ULONG StorPortQueryTimerMinInterval(
[in] PVOID HwDeviceExtension,
[out] PULONG TimerMinInterval
);
Parameters
[in] HwDeviceExtension
A pointer to the miniport's device extension.
[out] TimerMinInterval
Pointer to a ULONG in which this function writes the minimum time interval, in 100-nanosecond units, between successive ticks of the system clock.
Return value
This function returns one of the following status codes.
| Return code | Description |
|---|---|
| STOR_STATUS_SUCCESS | The timer minimum interval was successfully queried. |
| STOR_STATUS_INVALID_PARAMETER | A parameter is invalid. |
| STOR_STATUS_UNSUCCESSFUL | Returned for other internal system reasons. |
Remarks
A miniport can call this function to query the minimum timer resolution that is supported by the system clock, which can be helpful for implementing I/O polling.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported server | Windows Server 2022 |
| Header | storport.h |