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The DDI compliance rules for AVStream miniport drivers verify the DDI interface protocols between the kernel-streaming driver (ks.sys) and its miniport drivers.
In this section
| Topic | Description |
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The KsCallbackReturn rule specifies that a kernel-streaming (KS) miniport driver callback function returns only allowed status values. |
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The KsDeviceMutex rule specifies that a kernel streaming miniport driver uses KsAcquireDevice and KsReleaseDevice in the correct sequence. That is, every call to KsAcquireDevice must have a corresponding call to KsReleaseDevice. |
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The KsFilterMutex rule specifies that a KS miniport driver acquires and releases the filter mutex in the correct sequence. |
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The KsIrqlDDIs rule specifies that a kernel-streaming (KS) miniport driver calls KS DDIs at the correct IRQL level. |
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The KsIrqlDeviceCallbacks rule specifies that a kernel-streaming (KS) miniport driver returns from a KS device callback function with the same IRQL it had when it was called. |
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The KsInvalidStreamPointer rule verifies if a KS miniport driver provides a valid KS Stream Pointer as a function argument. |
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The KsIrqlFilterCallbacks rule specifies that a kernel-streaming (KS) miniport driver returns from a KS filter callback function with the same IRQL it had when the callback function was called. |
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The KsMarkPendingIrp rule specifies that a kernel-stream (KS) miniport driver should mark IRPs as pending when returning with STATUS_PENDING from the following callback functions:
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The KsIrqlPinCallbacks rule specifies that a kernel-stream (KS) miniport driver returns from a KS Pin callback function with the same IRQL that it had when it was called. |
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The KsProcessingMutex rule specifies that a KS miniport driver uses the processing mutex in the correct sequence: |
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The KsStreamPointerClone rule specifies that a kernel-stream (KS) miniport driver correctly uses the KsStreamPointerClone and KsStreamPointerDelete functions. |
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The KsStreamPointerLock rule specifies that a kernel-streaming (KS) miniport driver uses the KsStreamPointerLock and KsStreamPointerUnlock functions in the correct sequence. |
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The KsStreamPointerUnlock rule specifies that a kernel-streaming (KS) miniport driver unlocks all stream pointers before the driver is unloaded (or the device stopped). |
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The KsTimedDeviceCallbacks rule specifies that a kernel-streaming (KS) miniport driver returns from a device callback function within 500 ms. |
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The KsTimedFilterCallbacks rule specifies that a kernel-streaming (KS) miniport driver returns from a filter callback function within 500 ms. |
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The KsTimedPinCallbacks rule specifies that a kernel-streaming (KS) miniport driver returns from a pin callback function within 500 ms. |
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The KsTimedPinSetDeviceState rule specifies that a AVStream (KS) miniport driver makes state transitions using the AVStream minidriver's AVStrMiniPinSetDeviceState routine within the required time. |
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The KsTimedProcessingMutex rule specifies that a KS miniport driver should not hold a processing mutex for more than 100 milliseconds. |