WdfDeviceRemoveDependentUsageDeviceObject function (wdfdevice.h)
[Applies to KMDF only]
The WdfDeviceRemoveDependentUsageDeviceObject method indicates that a specified device no longer depends on another device when the specified device is used to store special files.
Syntax
void WdfDeviceRemoveDependentUsageDeviceObject(
[in] WDFDEVICE Device,
[in] PDEVICE_OBJECT DependentDevice
);
Parameters
[in] Device
A handle to a framework device object.
[in] DependentDevice
A pointer to a caller-supplied DEVICE_OBJECT structure that identifies a device that Device depends on.
Return value
None
Remarks
Your driver can call WdfDeviceRemoveDependentUsageDeviceObject to remove a device dependency that a previous call to WdfDeviceAddDependentUsageDeviceObject created.
For more information about WdfDeviceRemoveDependentUsageDeviceObject and WdfDeviceRemoveDependentUsageDeviceObject, see Supporting Special Files.
Examples
The following code example removes a device (pDeviceObject) from the list of devices that another device (device) depends on.
status = WdfDeviceRemoveDependentUsageDeviceObject(
device,
pDeviceObject
);
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Universal |
| Minimum KMDF version | 1.9 |
| Header | wdfdevice.h (include Wdf.h) |
| Library | Wdf01000.sys (see Framework Library Versioning.) |
| IRQL | <=DISPATCH_LEVEL |
| DDI compliance rules | DriverCreate(kmdf), KmdfIrql(kmdf), KmdfIrql2(kmdf), KmdfIrqlExplicit(kmdf) |