EVT_WDF_DRIVER_UNLOAD callback function (wdfdriver.h)

[Applies to KMDF and UMDF]

A driver's EvtDriverUnload event callback function performs operations that must take place before the driver is unloaded.

Syntax

EVT_WDF_DRIVER_UNLOAD EvtWdfDriverUnload;

void EvtWdfDriverUnload(
  [in] WDFDRIVER Driver
)
{...}

Parameters

[in] Driver

A handle to a framework driver object.

Return value

None

Remarks

A driver registers an EvtDriverUnload callback function when it calls WdfDriverCreate.

The EvtDriverUnload callback function must deallocate any non-device-specific system resources that the driver's DriverEntry routine allocated.

The framework does not call a driver's EvtDriverUnload callback function if the driver's DriverEntry routine returns an error status value.

Requirements

See also

DriverEntry