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Simplified driver initialization

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svn path=/trunk/; revision=1221
This commit is contained in:
Eric Kohl 2000-07-02 10:54:41 +00:00
parent 73437d2939
commit add4b2d35b
3 changed files with 45 additions and 57 deletions
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48
reactos/drivers/dd/beep/beep.c
View file

@ -1,4 +1,4 @@
/* $Id: beep.c,v 1.4 1999/10/16 12:41:42 ekohl Exp $
/* $Id: beep.c,v 1.5 2000/07/02 10:54:12 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -227,7 +227,8 @@ NTSTATUS BeepUnload(PDRIVER_OBJECT DriverObject)
}
STDCALL NTSTATUS
NTSTATUS
STDCALL
DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
/*
* FUNCTION: Called by the system to initalize the driver
@ -237,35 +238,14 @@ DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
* RETURNS: Success or failure
*/
{
PDEVICE_OBJECT DeviceObject;
PDEVICE_EXTENSION DeviceExtension;
NTSTATUS ret;
ANSI_STRING ansi_device_name;
UNICODE_STRING device_name;
ANSI_STRING asymlink_name;
UNICODE_STRING symlink_name;
PDEVICE_OBJECT DeviceObject;
UNICODE_STRING DeviceName;
UNICODE_STRING SymlinkName;
NTSTATUS Status;
DbgPrint ("Beep Device Driver 0.0.2\n");
RtlInitAnsiString (&ansi_device_name, "\\Device\\Beep");
RtlAnsiStringToUnicodeString (&device_name, &ansi_device_name, TRUE);
ret = IoCreateDevice (DriverObject,
sizeof(DEVICE_EXTENSION),
&device_name,
FILE_DEVICE_BEEP,
0,
FALSE,
&DeviceObject);
if (ret!=STATUS_SUCCESS)
{
return (ret);
}
/* prelininary */
RtlInitAnsiString (&asymlink_name, "\\??\\Beep");
RtlAnsiStringToUnicodeString (&symlink_name, &asymlink_name, TRUE);
IoCreateSymbolicLink (&symlink_name, &device_name);
DriverObject->MajorFunction[IRP_MJ_CREATE] = BeepCreate;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = BeepClose;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = BeepCleanup;
@ -284,6 +264,20 @@ DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
SynchronizationEvent,
FALSE);
RtlInitUnicodeString (&DeviceName, L"\\Device\\Beep");
Status = IoCreateDevice (DriverObject,
sizeof(DEVICE_EXTENSION),
&DeviceName,
FILE_DEVICE_BEEP,
0,
FALSE,
&DeviceObject);
if (NT_SUCCESS(Status))
return Status;
RtlInitUnicodeString (&SymlinkName, L"\\??\\Beep");
IoCreateSymbolicLink (&SymlinkName, &DeviceName);
return (STATUS_SUCCESS);
}

24
reactos/drivers/dd/blue/blue.c
View file

@ -1,4 +1,4 @@
/* $Id: blue.c,v 1.24 2000/06/29 23:35:47 dwelch Exp $
/* $Id: blue.c,v 1.25 2000/07/02 10:54:23 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -599,14 +599,13 @@ ScrDispatch (PDEVICE_OBJECT DeviceObject, PIRP Irp)
/*
* Module entry point
*/
NTSTATUS STDCALL
NTSTATUS
STDCALL
DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
{
PDEVICE_OBJECT DeviceObject;
ANSI_STRING adevice_name;
UNICODE_STRING device_name;
ANSI_STRING asymlink_name;
UNICODE_STRING symlink_name;
UNICODE_STRING DeviceName;
UNICODE_STRING SymlinkName;
DbgPrint ("Screen Driver 0.0.6\n");
@ -616,22 +615,17 @@ DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
DriverObject->MajorFunction[IRP_MJ_WRITE] = ScrWrite;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL ] = ScrIoControl;
RtlInitAnsiString (&adevice_name, "\\Device\\BlueScreen");
RtlAnsiStringToUnicodeString (&device_name, &adevice_name, TRUE);
RtlInitUnicodeString (&DeviceName, L"\\Device\\BlueScreen");
IoCreateDevice (DriverObject,
sizeof(DEVICE_EXTENSION),
&device_name,
&DeviceName,
FILE_DEVICE_SCREEN,
0,
TRUE,
&DeviceObject);
RtlInitAnsiString (&asymlink_name, "\\??\\BlueScreen");
RtlAnsiStringToUnicodeString (&symlink_name, &asymlink_name, TRUE);
IoCreateSymbolicLink (&symlink_name, &device_name);
RtlFreeUnicodeString (&device_name);
RtlFreeUnicodeString (&symlink_name);
RtlInitUnicodeString (&SymlinkName, L"\\??\\BlueScreen");
IoCreateSymbolicLink (&SymlinkName, &DeviceName);
return (STATUS_SUCCESS);
}

30
reactos/drivers/dd/null/null.c
View file

@ -1,4 +1,4 @@
/* $Id: null.c,v 1.3 1999/12/04 20:58:39 ea Exp $
/* $Id: null.c,v 1.4 2000/07/02 10:54:41 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -68,7 +68,8 @@ NTSTATUS NullUnload(PDRIVER_OBJECT DriverObject)
return(STATUS_SUCCESS);
}
NTSTATUS STDCALL
NTSTATUS
STDCALL
DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
/*
* FUNCTION: Called by the system to initalize the driver
@ -79,21 +80,11 @@ DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
*/
{
PDEVICE_OBJECT DeviceObject;
NTSTATUS ret;
ANSI_STRING ansi_device_name;
UNICODE_STRING device_name;
UNICODE_STRING DeviceName;
NTSTATUS Status;
DbgPrint("Null Device Driver 0.0.2\n");
RtlInitAnsiString(&ansi_device_name,"\\Device\\NUL");
RtlAnsiStringToUnicodeString(&device_name,&ansi_device_name,TRUE);
ret = IoCreateDevice(DriverObject,0,&device_name,
FILE_DEVICE_NULL,0,FALSE,&DeviceObject);
if (ret!=STATUS_SUCCESS)
{
return(ret);
}
DeviceObject->Flags=0;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = NullDispatch;
DriverObject->MajorFunction[IRP_MJ_CREATE] = NullDispatch;
@ -101,6 +92,15 @@ DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
DriverObject->MajorFunction[IRP_MJ_READ] = NullDispatch;
DriverObject->DriverUnload = NullUnload;
return(STATUS_SUCCESS);
RtlInitUnicodeString(&DeviceName,
L"\\Device\\Null");
Status = IoCreateDevice(DriverObject,
0,
&DeviceName,
FILE_DEVICE_NULL,
0,
FALSE,
&DeviceObject);
return (Status);
}