Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
An AVStream minidriver's IRP handling routine is called when these IRPs are dispatched by the device.
Syntax
PFNKSDEVICEIRPVOID Pfnksdeviceirpvoid;
void Pfnksdeviceirpvoid(
[in] PKSDEVICE Device,
[in] PIRP Irp
)
{...}
Parameters
[in] Device
Pointer to the KSDEVICE that dispatched the IRP.
[in] Irp
The IRP issued by Device.
Return value
None
Remarks
| IRP | Description |
|---|---|
| IRP_MN_CANCEL_STOP_DEVICE | The minidriver specifies this routine's address in the CancelStop member of its KSDEVICE_DISPATCH structure. This routine is optional. |
| IRP_MN_CANCEL_REMOVE_DEVICE | The minidriver specifies this routine's address in the CancelRemove member of its KSDEVICE_DISPATCH structure. This routine is called when an IRP_MN_CANCEL_REMOVE_DEVICE is dispatched by the device. This routine is optional. |
| IRP_MN_REMOVE_DEVICE | The minidriver specifies this routine's address in the MiniRemove member of its KSDEVICE_DISPATCH structure. AVStream calls this routine when an IRP_MN_REMOVE_DEVICE is dispatched by the device. Typically, it will be provided by minidrivers that must free device-associated resources upon device removal. This routine is optional. |
| IRP_MN_STOP_DEVICE | The minidriver specifies this routine's address in the Stop member of its KSDEVICE_DISPATCH structure. This is usually provided by minidrivers that need to detach from previously assigned resources before completing a stop operation. This routine is optional. |
| IRP_MN_SURPRISE_REMOVAL | The minidriver specifies this routine's address in the SurpriseRemoval member of its KSDEVICE_DISPATCH structure. This routine is optional. |
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | ks.h (include Ks.h) |