Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

67 lines
1.4 KiB

/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
sysctrl.c
Abstract: Human Input Device (HID) minidriver for Universal Serial Bus (USB) devices
The HID USB Minidriver (HUM, Hum) provides an abstraction layer for the
HID Class so that future HID devices whic are not USB devices can be supported.
Author:
ervinp
Environment:
Kernel mode
Revision History:
--*/
#include "pch.h"
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, HumSystemControl)
#endif
/*
************************************************************
* HumSystemControl
************************************************************
*
*/
NTSTATUS HumSystemControl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
NTSTATUS status = STATUS_SUCCESS;
PIO_STACK_LOCATION thisStackLoc;
PAGED_CODE();
thisStackLoc = IoGetCurrentIrpStackLocation(Irp);
switch(thisStackLoc->Parameters.DeviceIoControl.IoControlCode){
default:
/*
* Note: do not return STATUS_NOT_SUPPORTED;
* If completing the IRP here,
* just keep the default status
* (this allows filter drivers to work).
*/
status = Irp->IoStatus.Status;
break;
}
IoCopyCurrentIrpStackLocationToNext(Irp);
status = IoCallDriver(GET_NEXT_DEVICE_OBJECT(DeviceObject), Irp);
return status;
}