WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT function (wdfrequest.h)

Article
02/22/2024

[Applies to KMDF and UMDF]

The WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT function sets a time-out value in a driver's WDF_REQUEST_SEND_OPTIONS structure.

Syntax

void WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT(
  [in, out] PWDF_REQUEST_SEND_OPTIONS Options,
  [in]      LONGLONG                  Timeout
);

Parameters

[in, out] Options

A pointer to the driver's WDF_REQUEST_SEND_OPTIONS structure.

[in] Timeout

An absolute or relative time-out value. For more information, see the Timeout member of the WDF_REQUEST_SEND_OPTIONS structure.

Return value

None

Remarks

To set a time-out value, your driver must call WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT after it calls WDF_REQUEST_SEND_OPTIONS_INIT.

The WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT function stores the specified timeout value in the specified WDF_REQUEST_SEND_OPTIONS structure's Timeout member. It also sets the WDF_REQUEST_SEND_OPTION_TIMEOUT flag in the structure's Flags member.

Examples

The following code example initializes a WDF_REQUEST_SEND_OPTIONS structure and sets a time-out value for the structure. (The example calls WDF_REL_TIMEOUT_IN_SEC to specify a relative time-out value of 10 seconds.) The example then uses the WDF_REQUEST_SEND_OPTIONS structure as input to WdfUsbTargetPipeWriteSynchronously.

WDF_REQUEST_SEND_OPTIONS  syncReqOptions;

WDF_REQUEST_SEND_OPTIONS_INIT(
                              &syncReqOptions,
                              0
                              );
WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT(
                                     &syncReqOptions,
                                     WDF_REL_TIMEOUT_IN_SEC(10)
                                     );
status = WdfUsbTargetPipeWriteSynchronously(
                                            pipeHandle,
                                            NULL,
                                            &syncReqOptions,
                                            &writeBufDesc,
                                            NULL
                                            );

Requirements

Requirement	Value
Target Platform	Universal
Minimum KMDF version	1.0
Minimum UMDF version	2.0
Header	wdfrequest.h (include Wdf.h)

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