ChangerClassCreate - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// mcd.h
NTSTATUS ChangerClassCreate(
[in] PDEVICE_OBJECT DeviceObject,
[in] PIRP Irp
);
View the official Windows Driver Kit DDI referenceNo description available.
The ChangerClassCreate routine is called by a changer minidriver to allow the class driver perform device-independent operations needed to create or close a device.
DeviceObject [in]Pointer to the device object of the device to be created or closed.
Irp [in]Pointer to the I/O request packet (IRP) that initiated the create or close operation.
If the operation succeeds, the ChangerClassCreate routine returns STATUS_SUCCESS. Otherwise the routine returns one of the following status values.
| Return code | Description |
|---|---|
| STATUS_NO_SUCH_DEVICE | The device object does not have a properly initialized device extension. |
| STATUS_DEVICE_BUSY | The device is already open. Only one open at a time is allowed. |