WdfUsbInterfaceGetNumConfiguredPipes method
[Applies to KMDF and UMDF]
The WdfUsbInterfaceGetNumConfiguredPipes method returns the number of pipes that are configured for a specified USB device interface.
Syntax
BYTE WdfUsbInterfaceGetNumConfiguredPipes(
[in] WDFUSBINTERFACE UsbInterface
);
Parameters
- UsbInterface [in]
-
A handle to a USB interface object that was obtained by calling WdfUsbTargetDeviceGetInterface.
Return value
WdfUsbInterfaceGetNumConfiguredPipes returns the number of pipes that are configured for the specified interface.
A bug check occurs if the driver supplies an invalid object handle.
Remarks
Your driver can call WdfUsbInterfaceGetNumConfiguredPipes after it has called WdfUsbTargetDeviceSelectConfig.
For more information about the WdfUsbInterfaceGetNumConfiguredPipes method and USB I/O targets, see USB I/O Targets.
Examples
The following code example obtains the number of pipes that are configured for a specified USB interface.
BYTE pipeCount; pipeCount = WdfUsbInterfaceGetNumConfiguredPipes(UsbInterface);
Requirements
|
Minimum KMDF version | 1.0 |
|---|---|
|
Minimum UMDF version | 2.0 |
|
Header |
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Library |
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IRQL | <=DISPATCH_LEVEL |
|
DDI compliance rules | DriverCreate, KmdfIrql, KmdfIrql2, UsbKmdfIrql, UsbKmdfIrql2 |
See also
