WDF_USB_PIPE_DIRECTION_IN function
[Applies to KMDF and UMDF]
The WDF_USB_PIPE_DIRECTION_IN function determines whether a specified USB endpoint is an input endpoint.
Syntax
BOOLEAN WDF_USB_PIPE_DIRECTION_IN( _In_ UCHAR EndpointAddress );
Parameters
- EndpointAddress [in]
-
A USB endpoint address.
Return value
WDF_USB_PIPE_DIRECTION_IN returns TRUE if the specified endpoint is an input endpoint. Otherwise, this function returns FALSE.
Remarks
The high bit of the endpoint address determines the direction (input or output) of an endpoint. For more information about endpoint addresses, see the USB specification.
For more information about the WDF_USB_PIPE_DIRECTION_IN function and USB I/O targets, see USB I/O Targets.
Requirements
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Minimum KMDF version | 1.0 |
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Minimum UMDF version | 2.0 |
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See also
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