IUnregisterSubdevice::UnregisterSubdevice method (portcls.h)

The UnregisterSubdevice method deletes the registration of a subdevice that was previously registered by a call to PcRegisterSubdevice.

Syntax

NTSTATUS UnregisterSubdevice(
  [in] PDEVICE_OBJECT DeviceObject,
  [in] PUNKNOWN       Unknown
);

Parameters

[in] DeviceObject

Pointer to the device object for the adapter device. This parameter must point to a system structure of type DEVICE_OBJECT.

[in] Unknown

Pointer to the IPort interface of the port driver object that is bound to the subdevice.

Return value

UnregisterSubdevice returns STATUS_SUCCESS if the call was successful. Otherwise, it returns an appropriate error code.

Remarks

For more information, see Dynamic Audio Subdevices.

Requirements

See also

DEVICE_OBJECT

IPort

IUnregisterSubdevice

PcRegisterSubdevice