AtaPortAllocateQueueTag - NtDoc
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headers
// irb.h
UCHAR AtaPortAllocateQueueTag(
PVOID DeviceExtension,
[in] UCHAR TargetId,
[in] UCHAR Lun
);
View the official Windows Driver Kit DDI referenceNo description available.
The AtaPortAllocateQueueTag routine returns a queue tag for the specified device.
Note The ATA port driver and ATA miniport driver models may be altered or unavailable in the future. Instead, we recommend using the Storport driver and Storport miniport driver models.
DeviceExtensionA pointer to the channel extension.
TargetId [in]Specifies the target identifier of the device.
Lun [in]Specifies the logical unit number (LUN) of the device.
AtaPortAllocateQueueTag returns a valid queue tag if one can be allocated. A value of 0 is returned if a queue tag could not be allocated.
The AtaPortAllocateQueueTag routine allocates either a per device queue tag or a per channel queue tag. To generate a per channel queue tag, the miniport driver should set the TargetId and Lun parameters to IDE_UNTAGGED.