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- Implement handling a FastDeviceIoControl path (not yet used in portcls)

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svn path=/trunk/; revision=40633
This commit is contained in:
Johannes Anderwald 2009-04-21 10:02:57 +00:00
parent e84dcfd61b
commit d9e5339b37
1 changed files with 18 additions and 0 deletions
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18
reactos/drivers/ksfilter/ks/misc.c
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@ -265,6 +265,7 @@ KsSynchronousIoControlDevice(
IN ULONG OutSize, IN ULONG OutSize,
OUT PULONG BytesReturned) OUT PULONG BytesReturned)
{ {
PKSIOBJECT_HEADER ObjectHeader;
PDEVICE_OBJECT DeviceObject; PDEVICE_OBJECT DeviceObject;
KEVENT Event; KEVENT Event;
PIRP Irp; PIRP Irp;
@ -281,6 +282,23 @@ KsSynchronousIoControlDevice(
if (!DeviceObject) if (!DeviceObject)
return STATUS_UNSUCCESSFUL; return STATUS_UNSUCCESSFUL;
/* get object header */
ObjectHeader = (PKSIOBJECT_HEADER)FileObject->FsContext;
/* check if there is fast device io function */
if (ObjectHeader->DispatchTable.FastDeviceIoControl)
{
/* it is send the request */
Status = ObjectHeader->DispatchTable.FastDeviceIoControl(FileObject, TRUE, InBuffer, InSize, OutBuffer, OutSize, IoControl, &IoStatusBlock, DeviceObject);
/* check if the request was handled */
if (Status)
{
/* store bytes returned */
*BytesReturned = IoStatusBlock.Information;
/* return status */
return IoStatusBlock.Status;
}
}
/* initialize the event */ /* initialize the event */
KeInitializeEvent(&Event, NotificationEvent, FALSE); KeInitializeEvent(&Event, NotificationEvent, FALSE);