ReactOS 0.4.15-dev-7670-g69b08be
misc.c
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1/*
2 * PROJECT: ReactOS i8042 (ps/2 keyboard-mouse controller) driver
3 * LICENSE: GPL - See COPYING in the top level directory
4 * FILE: drivers/input/i8042prt/misc.c
5 * PURPOSE: Miscellaneous operations
6 * PROGRAMMERS: Copyright 2006-2007 Hervé Poussineau (hpoussin@reactos.org)
7 */
8
9/* INCLUDES ******************************************************************/
10
11#include "i8042prt.h"
12
13#include <debug.h>
14
15/* FUNCTIONS *****************************************************************/
16
20 IN PIRP Irp)
21{
22 PDEVICE_OBJECT LowerDevice = ((PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice;
23
24 ASSERT(LowerDevice);
25
27 return IoCallDriver(LowerDevice, Irp);
28}
29
35{
40 {
42 }
43
44
45 if ((SourceString->Length == 0)
48 {
52 }
53 else
54 {
55 USHORT DestMaxLength = SourceString->Length;
56
58 DestMaxLength += sizeof(UNICODE_NULL);
59
62 return STATUS_NO_MEMORY;
63
66 DestinationString->MaximumLength = DestMaxLength;
67
70 }
71
72 return STATUS_SUCCESS;
73}
LONG NTSTATUS
Definition: precomp.h:26
_In_ PIRP Irp
Definition: csq.h:116
#define NULL
Definition: types.h:112
struct _FDO_DEVICE_EXTENSION * PFDO_DEVICE_EXTENSION
NTSTATUS DuplicateUnicodeString(IN ULONG Flags, IN PCUNICODE_STRING SourceString, OUT PUNICODE_STRING DestinationString)
Definition: misc.c:31
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
#define PagedPool
Definition: env_spec_w32.h:308
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING
Definition: green.h:16
#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE
Definition: green.h:15
DRIVER_DISPATCH ForwardIrpAndForget
Definition: i8042prt.h:341
#define I8042PRT_TAG
Definition: i8042prt.h:12
#define ASSERT(a)
Definition: mode.c:44
_Out_ _Inout_ POEM_STRING _In_ PCUNICODE_STRING SourceString
Definition: rtlfuncs.h:1910
_Out_ _Inout_ POEM_STRING DestinationString
Definition: rtlfuncs.h:1909
#define UNICODE_NULL
#define IoSkipCurrentIrpStackLocation(Irp)
Definition: ntifs_ex.h:421
#define IoCallDriver
Definition: irp.c:1225
#define STATUS_NO_MEMORY
Definition: ntstatus.h:260
unsigned short USHORT
Definition: pedump.c:61
#define STATUS_SUCCESS
Definition: shellext.h:65
unsigned short Length
Definition: sprintf.c:451
void * Buffer
Definition: sprintf.c:453
unsigned short MaximumLength
Definition: sprintf.c:452
#define NTAPI
Definition: typedefs.h:36
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
#define IN
Definition: typedefs.h:39
uint32_t ULONG
Definition: typedefs.h:59
#define OUT
Definition: typedefs.h:40
#define STATUS_INVALID_PARAMETER
Definition: udferr_usr.h:135
_In_ PDEVICE_OBJECT DeviceObject
Definition: wdfdevice.h:2055
_Must_inspect_result_ _In_ ULONG Flags
Definition: wsk.h:170
__wchar_t WCHAR
Definition: xmlstorage.h:180