WdfIoTargetGetState method
The WdfIoTargetGetState method returns state information for a local or remote I/O target.
Syntax
WDF_IO_TARGET_STATE WdfIoTargetGetState(
[in] WDFIOTARGET IoTarget
);
Parameters
- IoTarget [in]
-
A handle to a local or remote I/O target object that was obtained from a previous call to WdfDeviceGetIoTarget or WdfIoTargetCreate or from a method that a specialized I/O target supplies.
Return value
WdfIoTargetGetState returns a WDF_IO_TARGET_STATE-typed value that indicates the state of the specified I/O target.
A bug check occurs if the driver supplies an invalid object handle.
Remarks
For more information about WdfIoTargetGetState, see Controlling a General I/O Target's State.
For more information about I/O targets, see Using I/O Targets.
Examples
The following code example obtains state information for a USB I/O target.
WDF_IO_TARGET_STATE ioTargetState; ioTargetState = WdfIoTargetGetState(WdfUsbTargetPipeGetIoTarget(pipeHandle));
Requirements
|
Version | Available in version 1.0 and later versions of KMDF (see KMDF Version History). |
|---|---|
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Header |
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Library |
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IRQL | <=DISPATCH_LEVEL |
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DDI compliance rules | DriverCreate, KmdfIrql, KmdfIrql2 |
See also
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Build date: 4/23/2013
