Scsi Miniport driver question
Hi,
Does any one know what I am supposed to do for these 2 IOCTLs
1. IOCTL_SCSI_MINIPORT_RETURN_STATUS
2. IOCTL_SCSI_MINIPORT_READ_SMART_THRESHOLDS
The SCSI Port driver sends my Scsi MiniPort driver these 2 requests.
However, I could not find any where in the world the document for what I need
to do with them. Will Microsoft answer me if I ask them????? I hope someone
here works for Microsoft.
Thank you
Vu Tag: plug-in for Internet Connection Firewall Tag: 50389
Wireless Provisioning Services (WPS) documentation now available
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Content-Transfer-Encoding: 7bit
See http://www.microsoft.com/whdc/device/network/wireless/wps.mspx.
Wireless Provisioning Services
Updated: August 18, 2004
Wireless Provisioning Services (WPS) enable the discovery of and connection
to wireless networks. WPS enhancements are included in Microsoft Windows XP
Service Pack 2 (SP2) and under consideration for Windows Server? 2003
Service Pack 1 (SP1).
WPS extends the wireless client software included with Windows XP and the
Internet Authentication Service (IAS) included with Windows Server 2003 to
allow for a consistent and automated configuration process when connecting
to public wireless hotspots or private wireless networks that provide guest
access to the Internet.
The WPS APIs allow for the pre-provisioning of network information to
connect to these networks and the provisioning of network settings to
connect to private wireless networks.
To help driver developers who create network components that can take
advantage of WPS capabilities, Microsoft is providing a Driver Development
Kit (DDK) preview, including these components:
? WPS documentation preview from the Windows DDK
? Netprov.h header and related files
Bryan S. Burgin
bburgin@online.microsoft.com
This posting is provided "AS IS" with no warranties, and confers no rights.
------=_NextPart_0001_4280AB10
Content-Type: text/x-rtf
Content-Transfer-Encoding: 7bit
{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil\fprq2\fcharset0 MS Sans Serif;}}
\viewkind4\uc1\pard\f0\fs20 See http://www.microsoft.com/whdc/device/network/wireless/wps.mspx.
\par
\par Wireless Provisioning Services
\par Updated: August 18, 2004
\par Wireless Provisioning Services (WPS) enable the discovery of and connection to wireless networks. WPS enhancements are included in Microsoft Windows XP Service Pack 2 (SP2) and under consideration for Windows Server\'99 2003 Service Pack 1 (SP1).
\par
\par WPS extends the wireless client software included with Windows XP and the Internet Authentication Service (IAS) included with Windows Server 2003 to allow for a consistent and automated configuration process when connecting to public wireless hotspots or private wireless networks that provide guest access to the Internet.
\par
\par The WPS APIs allow for the pre-provisioning of network information to connect to these networks and the provisioning of network settings to connect to private wireless networks.
\par
\par To help driver developers who create network components that can take advantage of WPS capabilities, Microsoft is providing a Driver Development Kit (DDK) preview, including these components:
\par
\par \bullet WPS documentation preview from the Windows DDK
\par
\par \bullet Netprov.h header and related files
\par
\par
\par
\par Bryan S. Burgin
\par bburgin@online.microsoft.com
\par
\par This posting is provided "AS IS" with no warranties, and confers no rights.
\par
\par }
------=_NextPart_0001_4280AB10-- Tag: plug-in for Internet Connection Firewall Tag: 50388
Getting SID While Deleting Files Over LAN.
I've tried to get SID in my server when some other client delete the shared
files in my server.In my file system filter driver,IRP_MJ_SET_INFORMATION
dispatch,when the FileInformationClass==FileDispositionInformation, I got NO
token of current thread,but got a token of current process.it is S-1-5-18.why
I can not get the correct SID of the impersonation user??
Regards,
Ming Tag: plug-in for Internet Connection Firewall Tag: 50384
Devicepath from SetupDiGetDeviceInterfaceDetail
After enumerating device interfaces for GUID_NDIS_LAN_CLASS and
getting the interface detail, I get the devicepath like-
DevicePath = \\?\....#{ad498944-762f-11d0-8dcb-00c04fc3358c}\{86ff7813-229e-4030-905e-dff4822330dd}
I want the adapter name, which is actually the "ServiceName" value of
the registry key:
HKLM\Software\microsoft\Windows
NT\CurrentVersion\NetworkCards\<number>
This ServiceName (128bit GUID in W2K and later), matches with the
"{86ff7813-229e-4030-905e-dff4822330dd}" part I get in the devicepath
using SetupDiGetDeviceInterfaceDetail call.
Is this always the case and a safe assumption? Tag: plug-in for Internet Connection Firewall Tag: 50383
running app from driver
Hi All,
I need to run a command line application with a parameter from my filesystem
filter driver. If you can give me some idea i will appreciate it, even if it
is complicated.
Thanks Tag: plug-in for Internet Connection Firewall Tag: 50374
how to add registry keys during inf install?
hi all
can i add registry entries from an inf file.
i am installing a mirror display driver.
assaf Tag: plug-in for Internet Connection Firewall Tag: 50373
SCSI SRB FLAG does not make sense - SRB_FLAGS_NO_DATA_TRANSFER
Hello everyone,
In the DDK, page SCSI_REQUEST_BLOCK (System Support for Buses->SCSI
Bus->Reference->SCSI Bus Structure->SCSI_REQUEST_BLOCK), the SrbFlags can
have a flag set as 'SRB_FLAGS_NO_DATA_TRANSFER'. The page says, "Indicates no
data transfer with this request. If this is set, the flags
SRB_FLAGS_DATA_OUT, SRB_FLAGS_DATA_IN, and SRB_FLAGS_UNSPECIFIED_DIRECTION
are clear"
Now when I look at the include file srb.h, this flag is '#define'd as
0x00000000. Can anyone explain this? If I am going to test the flag using
the following statement:
if( srb->SrbFlags & SRB_FLAGS_NO_DATA_TRANSFER )
{
// do all this
}
I will never have the block executed.
This got to be a bug, true or not? Thanks. Tag: plug-in for Internet Connection Firewall Tag: 50372
microsoft os descriptor (usb)
Can anyone help me locate the information on how to implement the Microsoft
OS descriptor in a USB device? I found some "os descriptor" defines and
structs in the 2003 DDK which, when returned by my device does seem to make
WinXP SP2 to query for more information. However, I have not found (ddk
help, microsoft.com, google, etc.) any documentation whatsoever on how to
correctly/fully implement this.
http://www.microsoft.com/whdc/system/bus/usb/USBFAQ_intermed.mspx
<quote>
The Microsoft OS descriptor is a set of data structures that IHVs can use to
include extra information in device firmware, information that Microsoft OS
descriptor-enabled applications and operating systems can extract. The data
is extracted by vendor-specific USB requests to the device as indicated in
the OS Descriptor specification. The information retrieved will provide the
operating system and/or applications with additional information about the
device and its special features.
For additional information about the Microsoft OS descriptors, please visit
USB Architecture and Driver Support.
</quote>
Thanks in advance Tag: plug-in for Internet Connection Firewall Tag: 50359
USB port monitor error 1223
Hi there,
I'm working on a custom language monitor for a USB printer.
I've found that if the printer is unplugged then plugged back in, any
WritePort calls to the USB port monitor result in failure with an
error 1223. Obviously I can't write to the printer while it's
unplugged :) but once it's plugged back in, is there anything I can do
to get the port talking again? If I delete the job that is failing,
the next one writes to the printer without a problem.
--
Matt Kane
mkane@zebra.com Tag: plug-in for Internet Connection Firewall Tag: 50358
IRQ Sharing causes multi-function adapter to lock PC
We are having problems with a third party vendors card. Everytime it
shares an IRQ with another PC device, it locks the controller. We've
been able to recreate and fix the symptoms by freeing up the sharing
IRQ resource.
The vendor is trying to integrate a LSI mulitfunction chip that passes
about 120MB/s (yes, 120 Mega Bytes per second) on the PCI bus. This
is near the theroetical bandwidth of the PCI bus.
One caveat that we have is that for stability purposes, we have to use
the "Standard PC" HAL instead of one of the ACPI HAL's available with
XP/2K. This is for compatibility purposes with legacy devices
integrated into our product.
Our ultimate goal is to get the device to share an IRQ. We aren't
going to rewrite their driver.
Are there any BIOS settings or OS fixes that might help to let this
device share an IRQ? Any suggestions? Anyone?
Thanks. Tag: plug-in for Internet Connection Firewall Tag: 50354
Anyone use VFW driver with WME ?
Hi,
I 'm wondering did anyone used VFW capture driver with WME (Window Media
Encoder) b4.
Cause I'm on the midst testing my driver, but just to make sure go in right
direction !
Thank in advance
wp Tag: plug-in for Internet Connection Firewall Tag: 50353
Listing files that comprise a display driver
Hi,
One of my current tasks is to list out all the files that comprise a
display driver, and the final piece of code should work on both WinXP and Win2000.
I have written a piece of code that will list out the files of a
driver, given the driver inf file, and the device id.
Now my task is to figure out the inf file of the display driver
installed on the system. When I use EnumDisplayDevices, the field
DeviceKey gives me some information about a location in the registry
to the driver registry area within HKLM\SYSTEM\CurrentControlSet.
Would like to know if I could and if yes, how, could I use the
information in the DeviceKey to get to the inf file of the driver...
Can anyone help??
Thanks,
Radha. Tag: plug-in for Internet Connection Firewall Tag: 50351
getting gray text with hp laserjet 4L
Hi,
I've got a HP Laserjet 4L. When an applications in Win98 prints gray or
colored text, the HP Laserjet prints it in gray by using some dithering.
Now I have got WinXP and with applications like WordPad or StarOffice
the printed text is simple black. With other applications like Acrobat
Reader the text is still gray.
Is there something wrong with the driver (It's original Windows-driver)?
Is there something wrong or missing in the gpd-file? If yes, how can I
correct it?
kind regards
Regina Tag: plug-in for Internet Connection Firewall Tag: 50350
Checking File and Print Sharing
Hi -
I'm creating an installation program that will install a VB.NET program and
an instance of MSDE on an unknown desktop (commercial application). The
install will include the MSDE redistributable files (and it will launch the
MSDE Setup.exe to install MSDE).
I've read that "Except on Win 98 and Millennium, file and print sharing must
be active"
How can my install program ensure this (programmatically)? More
specifically:
Where (registry setting or elsewhere) do I check for these settings, and
what name-value pairs are valid?
Is this the correct approach?
Thanks for your help.
- Jeff Tag: plug-in for Internet Connection Firewall Tag: 50349
VFW Streaming Transfer under WME
Hi,
I have port a 32bit, user-mode only VFW driver from bravodo sample to an
user-mode only Video Capture Driver.
I understand that VFW using two transfer mode - Frame (Single Capture) and
Stream.
For eg, Dorgem, use Frame (Single Capture), However, AMCAP and WME seem use
Stream (WDM based).
My only problem now remain is on STREAM transfer mode
Cause it quite long, in summarized, I used as follow :
on DVM_STREAM_PREPAREHEADER
- return DV_ERR_NOTSUPPORTED, so suppose client will supply the buffer
on DVM_STREAM_ADDBUFFER
- add into queue, return DV_ERR_OK
When the data ready, I use DriverCallback (with MM_DRVM_DATA).
But however, the data seem not pass-through client driver, the preview
and/or output screen show nothing, and the WME FPS (Frame per Seconds) show
zeros, but show encoding... and my debug show
DVM_STREADM_PREPAREHEADER, then DVM_STREAM_ADDBUFFER repeated for about 40
times, then my driver fill the buffer and callback, and this repeat.
FYI, I'm using separate thread procedure to supply the data into VHdr
(buffer queue), synchronized through semaphore (replace STI/CLI for H/W
board), and notify client with DriverCallback (MM_DRVM_DATA etc).
I understand that WME, AMCAP etc use somekind of VFW wrapper for WDM,
How do I verify that my Callback worked ? Any recommend for a sample WDM
client with source-code for me to easy debug (for,eg, the callback did
called correctly) ?
Thank in advance
wp Tag: plug-in for Internet Connection Firewall Tag: 50348
Problem with NDIS transport driver
Hi,
I have miniport driver which is using NdisMIndicateStatus function to send
some "events" (my own status values) via transport driver into application.
Everything works as long as I don't bridge my connection with any other
network interface using standard Win XP bridge. When my interface is bridged
then transport driver is no longer receving status indications from my
miniport driver. Are they filtered by the bridge driver? Is there a solution
to that or I have to to change the whole mechanism of sending events up from
miniport driver?
Thanks for help
Marcin Tag: plug-in for Internet Connection Firewall Tag: 50347
MS Internet Connection Firewall
Can anyone tell me how MS Internet Connection Firewall
works? I know that it opens an outgoing packet and
changes its source address so that the incoming packets
are routed to alg.exe (application layer gateway). Can
someone tell me how it does this? How does it change the
packet? Does it use a TDI driver, a filter hook driver,
or an NDIS intermediate driver? Tag: plug-in for Internet Connection Firewall Tag: 50344
USB: multifunction device beside usbser.sys
Hi
Because of many people recommended to use usbser.sys instead of writing
my own COM mapping driver I did so, and it works so far.
My problem now is, that I should be able to use the device's second
configuration - so I think I can name some kind of multifunctional device.
For getting quick results about feasability, I used libusb-win32 (latest
version). I tried to reset the device, enumerate all for getting a new
handle set config but got an error. I think it must be usbser.sys that
claims the device befor I can do it. How can I solve the problem. Any idea.
Many thanks in advance
Robin Tag: plug-in for Internet Connection Firewall Tag: 50338
how does Softice stop the window system?
Hello all.
I wanna ask a question about softice again. When i start softice, the windows
system is stopped. How is this possible? Softice doesn't hook irq0(timer),
i think. But, the windows system can't get the chance of handling a timer
interrupt.
I wanna use a same method like softice's to implement my little driver.
Any ideas?
thanks for reading. Tag: plug-in for Internet Connection Firewall Tag: 50334
How do you tell WZC that our driver/adapter is WPA compliant
We handle OID_802_11_AUTHENTICATION_MODE and return that
we are doind WPA authentication but WZC authentication does not
show WPA option.
Any ideas? -Ron- Tag: plug-in for Internet Connection Firewall Tag: 50326
problem using a standalone device object with NDIS
Hello, I have a problem when using 'NdisMRegisterDevice()' in my NDIS driver.
I use this call to create a standalone device object so that my application
can communicate with my driver. Using this, I can communicate with my driver
fine from my app. However, the file handle that my application creates to
talk to my driver does NOT get notified when I register to receive device
notifications using 'RegisterDeviceNotification'. However, if I create a
handle using the REAL device name (obtained by using the SetupDixxx
functions), my app properly receives the notifications. I can't use this
handle tho', 'cuz NDIS owns it and my driver won't received Irps sent to it.
The basic problem I'm trying to solve is this: if the device is unplugged
WHILE the app is running, the app needs to close the handle to allow the
driver to unload.
Thx,
Rick Tag: plug-in for Internet Connection Firewall Tag: 50318
Getting quick IP address on P2P RNDIS network
There is a small problem that we've run into, which I hope somebody can help
us with.
We have a USB device, which supports RNDIS and that causes an XP machine to
create a separate network for it. The device also creates a "remote" node on
that network essensially establishing point-to-point network inside the
device itself.
Now to the problem, how do we quickly assign IP address to this network?
I am looking for any suggestions - from totally legal to semi-legal. So far
this device is restricted to a lab environment, but having fully supported
solution is obviously preferred.
Static IP assignment is out of question. So is auto IP as it is too slow.
We need to be able to assign a address in a matter of seconds or even
faster. Also a requirement - multiple instances of this device can be
connected to the same machine and they all have to sit on separate networks
and don't conflict with each other.
The only solution that I can think of at a moment is to have the device
being a DHCP server for its own net. Problem: multiple devices can be
connected to the PC and there must be a solid algorithm in place to avoid
any conflicts.
I was also told that IPv6 would solve this issue.
This is very generic problem and I am sure there are good solutions to it.
Can anybody offers any suggestions or refer me to relevant RFC or something?
Any help would be appreciated.
Thanks!
-- Max. Tag: plug-in for Internet Connection Firewall Tag: 50314
DIFx Framework - HOWTO
Hi All,
First, I have only a basic understanding of the certificates, signing, etc.
so please excuse me if some question appears to be a stupid one :-)
I'm evaluating the MS DIFx framework as to make a single file installation
of the driver I've made. In connection with this I have tried to set-up an
installation through DIFx framework but have some troubles with it. I get
the following error in DpInst.log file for every INF file in the driver:
"ERROR: driver package 'drive:\path\INFFILE.INF' is unsigned. Error code
0x800B0100, No signature was present in the subject."
Could somebody explain me what is the right way to set-up the installation.
- As far as I know only the cat file should be signed not all the files
in the driver package...
Follows a short description of how I've tried to make the installation:
In the INF file I have included the requested CatalogFile and
DriverPackageType sections:
CatalogFile=CBMA.cat
DriverPackageType=PlugAndPlay
The content of CBMA.cdf file is:
[CatalogHeader]
name=CBMA.cat
[CatalogFiles]
CBM.dll=CBM.dll
OEMUI.dll=OEMUI.dll
OEMUNI.dll=OEMUNI.dll
CBM.ini=CBM.ini
CBM_CT1000II.INF=CBM_CT1000II.INF
CBM_CTS300.INF=CBM_CTS300.INF
CBM_PPU700.INF=CBM_PPU700.INF
CBM1000II.GPD=CBM1000II.GPD
CTS300.GPD=CTS300.GPD
PPU700.GPD=PPU700.GPD
ttfsub.GPD=ttfsub.GPD
CBMA.HLP=CBMA.HLP
eula.txt=eula.txt
From this file I have successfully created .cat file and subsequently signed
it with a test certificate obtained through makecert.exe and cert2spc.exe...
After that I copied DpInst.exe in the driver directory and made eula.txt and
dpinst.xml files. Subsequently when I ran DpInst.exe I received the
described error.
Any help will be appreciated!
10x
___________________________________________
Best regards,
Ivan Dimitrov Tag: plug-in for Internet Connection Firewall Tag: 50299
DPC has high latency only with SMP
Hallo,
i'm back with my DPC latency problem: i'm testing my driver on an SMP
machine, and 4 or 5 times every second when in the isr i request the
dpc, i find that the old request is still in queue.
When I start the OS with the /onecpu option, this behaviour disappears
and the DPC is never delayed too much (>1ms).
Does anyone have some clue for solving this problem ?
I don't understand why the dpc handling seems to slow down so much on a
SMP machine.
Thanks,
e. Tag: plug-in for Internet Connection Firewall Tag: 50298
question from IRP Cheat Sheet 1 ==> Scenario 2 ) Forward and Wait
Hello,
I have questions regarding the IRP cheat sheet's Scenario 2 , Forward
and Wait.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275
could somebody pls clarify these
thanks
Taha
Question 1 )
------------
in DispatchRoutine_2 ( ...
if (status == STATUS_PENDING) {
does this return value of STATUS_PENDING mean that the completion
routine of some lower level driver
would have returned STATUS_MORE_PROCESSING_REQUIRED?
Question 2)
-----------
in DispatchRoutine_2 ( ...
IoCompleteRequest (Irp, IO_NO_INCREMENT);
return status;
i) What control flow will the call to IoCompleteRequest initiate?
ii) To whom will the "return status;" statement give control
How are i) and ii) above inter-related? Tag: plug-in for Internet Connection Firewall Tag: 50297
[Q] how can i get the CR3 value?
Hello all.
I have a question about getting cr3 value. (page directory base address)
In softice, the 'PAGE' command shows the cr3 value exactly.
(on windows 2000, 0x30000. on windows xp, 0x39000)
But, my driver can't catch the value. (0xb9e83d8f <- like this)
the code is this.
push cr3
pop eax
it doesn't work.
I think this is because my driver is called in a user process, not in kernel.
so, my question is this.
is there any way to get the cr3 value of the kernel? (running a thread in kernel?)
if no, how can i use the same method like softice's.
thanks for reading. Tag: plug-in for Internet Connection Firewall Tag: 50295
BugCheck in TDI Filter TDI_RECEIVE Completion.
Have some very simple code but it is Bug Checking from time to time.
Seems to be trouble with MDL.
if(*IoRequestPacket && (STATUS_MORE_PROCESSING_REQUIRED == status))
{
//do set up the filters completion routine and call it
IrpStack->CompletionRoutine = F_RECV_COMPLETION_ROUTINE ;
}
F_RECV_COMPLETION_ROUTINE(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP pIrp,
IN PVOID Context
)
{
PMDL pMDL = pIrp->MdlAddress ;
if(pMDL)
ulBytes = MmGetMdlByteCount(pMDL) ;
//call original Completion afterwards...
}
Bug Checks vary from DRIVER_IRQL... to IRQL_NOT_LESS...
Do I miss something? Since I am only filtering, I supposed that the MDL was
already locked. Tag: plug-in for Internet Connection Firewall Tag: 50294
Question on IRP Cheat sheet SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE
Hello,
I have questions regarding the IRP cheat sheet's SCENARIO 4: QUEUE FOR
LATER, OR FORWARD AND REUSE
http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275
could somebody pls clarify these
thanks
Taha
===================================================
|SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE|
===================================================
Question 1)
-----------
The comment in DispathRoutine_4 says the following:
//
// You mark the IRP pending if you are intending to --> queue the
IRP <----
// and process it later. If you are intending to forward the IRP
// directly, use one of the methods discussed earlier in this
article.
what is meant by "queue the IRP" over here?
Question 2)
-----------
In the explanation it says:
"
The completion routine can either return
STATUS_CONTINUE_COMPLETION or STATUS_MORE_PROCESSING_REQUIRED.
You return STATUS_MORE_PROCESSING_REQUIRED only if you intend to
reuse the IRP from another thread and
complete it later.
"
what does it mean by "if you intend to reuse the IRP from another
thread and
complete it later"?
Question 3)
-----------
In CompletionRoutine_42 (.....
Here in the comment it sys:
//
// Because you are stopping the completion of the IRP by returning
the
// following status, you must complete the IRP later.
What is meant by "you must complete the IRP later." , later when ,
why and how? Tag: plug-in for Internet Connection Firewall Tag: 50293
Question on IRP Cheat sheet SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE
Hello,
I have questions regarding the IRP cheat sheet's SCENARIO 4: QUEUE FOR
LATER, OR FORWARD AND REUSE
http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275
could somebody pls clarify these
thanks
Taha
===================================================
|SCENARIO 4: QUEUE FOR LATER, OR FORWARD AND REUSE|
===================================================
Question 1)
-----------
The comment in DispathRoutine_4 says the following:
//
// You mark the IRP pending if you are intending to --> queue the
IRP <----
// and process it later. If you are intending to forward the IRP
// directly, use one of the methods discussed earlier in this
article.
what is meant by "queue the IRP" over here?
Question 2)
-----------
In the explanation it says:
"
The completion routine can either return
STATUS_CONTINUE_COMPLETION or STATUS_MORE_PROCESSING_REQUIRED.
You return STATUS_MORE_PROCESSING_REQUIRED only if you intend to
reuse the IRP from another thread and
complete it later.
"
what does it mean by "if you intend to reuse the IRP from another
thread and
complete it later"?
Question 3)
-----------
In CompletionRoutine_42 (.....
Here in the comment it sys:
//
// Because you are stopping the completion of the IRP by returning
the
// following status, you must complete the IRP later.
What is meant by "you must complete the IRP later." , later when ,
why and how? Tag: plug-in for Internet Connection Firewall Tag: 50292
Questions on IRP Cheat Sheet ==> SCENARIO 2: FORWARD AND WAIT
Hello,
I have questions regarding the IRP cheat sheet's Scenario 2 , Forward
and Wait.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275
could somebody pls clarify these
thanks
Taha
Question 1 )
------------
in DispatchRoutine_2 ( ...
if (status == STATUS_PENDING) {
does this return value of STATUS_PENDING mean that the completion
routine of some lower level driver
would have returned STATUS_MORE_PROCESSING_REQUIRED?
Question 2)
-----------
in DispatchRoutine_2 ( ...
IoCompleteRequest (Irp, IO_NO_INCREMENT);
return status;
i) What control flow will the call to IoCompleteRequest initiate?
ii) To whom will the "return status;" statement give control
How are i) and ii) above inter-related? Tag: plug-in for Internet Connection Firewall Tag: 50291
Questions on IRP Cheat Sheet ==> SCENARIO 2: FORWARD AND WAIT
Hello,
I have questions regarding the IRP cheat sheet's Scenario 2 , Forward
and Wait.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;320275
could somebody pls clarify these
thanks
Taha
Question 1 )
------------
in DispatchRoutine_2 ( ...
if (status == STATUS_PENDING) {
does this return value of STATUS_PENDING mean that the completion
routine of some lower level driver
would have returned STATUS_MORE_PROCESSING_REQUIRED?
Question 2)
-----------
in DispatchRoutine_2 ( ...
IoCompleteRequest (Irp, IO_NO_INCREMENT);
return status;
i) What control flow will the call to IoCompleteRequest initiate?
ii) To whom will the "return status;" statement give control
How are i) and ii) above inter-related? Tag: plug-in for Internet Connection Firewall Tag: 50290
simple & stripe volumes filter driver differences ?
Hi
i got a working simple volume filter driver, it is installed as an
upperfilter driver.
When working with stripe volumes it does not write and / or read the
data correctly.
What is different between simple and stripe volumes for that driver
then ?
Thanks. Tag: plug-in for Internet Connection Firewall Tag: 50288
after application call CancelIO
USB device .
after application called CancelIO,
driver receive two IRPs with ioControlCode 0x80002004 and 0x8000201C ,
how to find out the meaning of these ioControlcodes?
I tried to split it in to parts as DDK defined,but i don't know how to do
next.
Is there a way to get the meaning? Tag: plug-in for Internet Connection Firewall Tag: 50287
SetFeature DEVICE_REMOTE_WAKEUP
Sir...Good afternoon
I had a problem on USB RemoteWakeup, that Device is not belong to Keyboard
or mouse.
The Bit of "support remote wakeup" in device ConfigurationDescriptor Had
been Setted as 1 .
How can i make the Windows replay device a SetFeature to enable this
function?
or i should send SetFeature out while my driver checking
ConfigurationDescriptor??
May i have your kindly answer? Tag: plug-in for Internet Connection Firewall Tag: 50286
static driver verifier?
Has anybody used any pre-release version of Microsoft's SDV ?
http://www.microsoft.com/whdc/devtools/tools/SDV.mspx
are there any updates on when would this be available ?
regards
Taha Tag: plug-in for Internet Connection Firewall Tag: 50285
Driver debugging issue
Can anyone teach me how to step by step debug a kernel mode driver in
C++ source rathar than in DASM?
I am currently using DriverStudio 3.x but I don't know how to break a
driver. I've tried using DbgBreakPoint(), but it breaks in assembly
code. How can I debug in my C++ source?
also, if I issue GO command after breaking at DbgBreakPoint(), the
target system crash and reboot. How to solve it?
Besides Driver Studio, tutorials on how to debug kernel mode driver
in C++ source using WinDbg will also appreciated.
Thanks
David Tag: plug-in for Internet Connection Firewall Tag: 50281
network link speed
Hello, does anyone know how the link speed is determined by Windows when
attached to a wireless network? I know Windows queries the Ndis driver using
OID_GEN_LINK_SPEED, which is supposed to return the max Tx rate. In a
wireless network, the max rate is determined by the Service Set. Therefore,
I would assume that when associating with a particular Access Point, I should
always get the same link speed. However, I've seen cases where the link
speed changes between 1, 2, 5.5 & 11Mbps - even though I'm still connected
(i.e. no disassociation/reassociation occurs). My service set consists of a
single Access Point, which is configured to use all 4 rates (i.e. they're all
marked Mandatory in the beacon parameter set).
Thx,
Rick Farrington Tag: plug-in for Internet Connection Firewall Tag: 50272
IoBuildDeviceIoControlRequest
DDK for IoBuildDeviceIoControlRequest(...) says that field
" Event is set to to the signaled state when lower driver
has completed the requested operation..."
Does it mean that I/O Manager set Event ?
thanks,
dave Tag: plug-in for Internet Connection Firewall Tag: 50271
AVStream: Saving MPEG2-PS to file with Dump filter sees loss of stream
Hi,
I'm using the Dump filter from the SDK to connect to my HW encoder and
save to file.
When I playback the file I get a loss of content everey couple ~5
seconds for ~1/3 of a second (my source shows time code on screen).
Wondering if any body has seen this problem?
Would it be possible that the latency from the dump filter writing to
the HD could cause this?
MY encoder buffers ~2 seconds of MPEG2-PS and never experiences an overflow.
Thx Tag: plug-in for Internet Connection Firewall Tag: 50265
scsi troubles...
Hi folks,
my (first attempt of a) pcmcia scsi miniport driver is driving me insane...
The driver consists of only a DriverEntry() - which initializes a
HW_INITIALIZATION_DATA structure - and a few (empty) functions for the
drivers entry points. (As seen at MSDN->SCSI Miniport Drivers).
Here's how the initialization of the HW_INITIALIZATION_DATA structure
looks like:
ULONG DriverEntry(IN PVOID DriverObject, IN PVOID Argument2)
{
HW_INITIALIZATION_DATA InitData;
ULONG Status;
ULONG i;
for (i=0; i<sizeof(HW_INITIALIZATION_DATA); i++)
((PUCHAR)&InitData)[i] = 0;
InitData.HwInitializationDataSize = sizeof(HW_INITIALIZATION_DATA);
InitData.AdapterInterfaceType = PCMCIABus;
InitData.DeviceExtensionSize = sizeof(MY_DEV_EXT);
InitData.NumberOfAccessRanges = 2;
InitData.HwFindAdapter = FFS_FindAdapter;
InitData.HwInitialize = FFS_HwInitialize;
InitData.HwStartIo = FFS_StartIo;
InitData.HwResetBus = FFS_ResetBus;
InitData.HwAdapterControl = FFS_AdapterControl;
InitData.HwInterrupt = FFS_Interrupt;
InitData.HwAdapterState = FFS_AdapterState;
InitData.HwDmaStarted = NULL;
Status = ScsiPortInitialize(DriverObject, Argument2,
&InitData, NULL);
__asm int 3
return(Status);
}
The bare minimum inf file to install my bare minimum driver looks like
this:
[Version]
Signature="$WINDOWS NT$"
Class=MTD
ClassGuid={4D36E970-E325-11CE-BFC1-08002BE10318}
Provider="Mike"
DriverVer=08/14/2004
[DestinationDirs]
DefaultDestDir=12
[Manufacturer]
"Flashcard"=DeviceList
[DeviceList]
"PCMCIA Flashcard"=DriverInstall,PCMCIA\UNKNOWN_MANUFACTURER-0000
[DriverInstall.NTx86]
CopyFiles=@ffs.sys
[DriverInstall.NTx86.Services]
AddService=ffs, 2, ServiceInstallSettings
[ServiceInstallSettings]
DisplayName = "PCMCIA Flashcard"
ServiceType = 1
StartType = 3
ErrorControl = 1
ServiceBinary = %12%\ffs.sys
LoadOrderGroup = SCSI Miniport
Dependencies = PCMCIA
AddReg = ServiceRegistryEntries
[ServiceRegistryEntries]
HKR, "Parameters\PnpInterface", "8", 0x00010001, 0x00000001
The driver is ment to be pnp compliant as the PnpInterface registry key
and the presence of the HwAdapterState-function indicate.
After the driver is installed and a memory card is pluged in, the drivers
DriverEntry() function is called and ScsiPortInitialize() returnes a value
of zero. (Which seems to be ok). But after that, no other function will be
called!
The main question is: Why is no other function than DriverEntry() called?
Acording to MSDN this may happen if PnpInterface is present but the driver
is not installed as a service for the device. Which leads directly to the
question:
The above inf file should install the driver ffs.sys as service (with
the name 'ffs') for devices of type PCMCIA\UNKNOWN_MANUFACTURER-0000.
Is this the case? Or do you see any mistakes?
(I used msdn and Oneys WDM book to 'tinker' the above inf file together,
but it's well possible that i've missed something... ?!?)
I have no idea why my driver does not initialize proper. Maybe a legacy
driver would be a better idea than a pnp driver...
Please let me know if you have any advice.
Thanks in advance,
Mike Tag: plug-in for Internet Connection Firewall Tag: 50264
USB Driver : 0xC0000B00 + 0xC000A00 errors with Isochronous OUT Endpoint when ASAP is specified !
Hi,
My device supports an Isochronous OUT Endpoint, set to 895 bytes/ms.
Also I would like to fully use this endpoint (ie : fill in all
Isochronous OUT frames each millisecond).
To do this, I implemented a stuff that sends 4 pending URBs to the USB
Bus driver. Each URB also gets completed but some are completed with
0xC0000B00 error (USBD_STATUS_ISOCH_REQUEST_FAILED).
For those URBs that fails with this error, Iso packets (that do not have
data) are told to be in error (0xC0000A00 = USBD_STATUS_BAD_START_FRAME),
whereas all URB are sent with the USBD_START_ISO_TRANSFER_ASAP flag.
Does anyone knows this kind of problem, and is there any trick to fix
this problem ?
Thanks by advance !
Sebastien Tag: plug-in for Internet Connection Firewall Tag: 50258
USB Driver : 0xC0000B00 + 0xC000A00 errors with Isochronous OUT Endpoint when ASAP is specified !
Hi,
My device supports an Isochronous OUT Endpoint, set to 895 bytes/ms.
Also I would like to fully use this endpoint (ie : fill in all
Isochronous OUT frames each millisecond).
To do this, I implemented a stuff that sends 4 pending URBs to the USB
Bus driver. Each URB also gets completed but some are completed with
0xC0000B00 error (USBD_STATUS_ISOCH_REQUEST_FAILED).
For those URBs that fails with this error, Iso packets (that do not have
data) are told to be in error (0xC0000A00 = USBD_STATUS_BAD_START_FRAME),
whereas all URB are sent with the USBD_START_ISO_TRANSFER_ASAP flag.
Does anyone knows this kind of problem, and is there any trick to fix
this problem ?
Thanks by advance !
Sebastien Tag: plug-in for Internet Connection Firewall Tag: 50256
Using DIFxApp for Net Client install
I've been trying to use the DIFxAPP code to install our NFS Client Device
driver and have been running into problems. The DIFxAPP code requires a
WHQL digital signature.for use with Windows 2000 and XP. Since we have no
hardware we cannot take advantage of that program. An Authenticode
signature can be used for Windows Server 2003, but apparently not for Win2k
and XP (According to the Authenticode doc anyway). Has anyone else run into
this problem? Any workarounds?
Does anyone know why a WHQL digital signature is a requirement? Any idea if
this requirement might be relaxed in the future?
The error that cat get past is 0x800B0100L which is "No signature was
present in the subject."
I have supplied an Authenticode signiture, so I'm guessing that it wants a
WHQL digital signature, correct?
Regards,
Duane Johnson
WRQ, Inc. Tag: plug-in for Internet Connection Firewall Tag: 50255
Terminal Server, virtual audio driver, and lossless audio
I was unable to locate a better newsgroup, so if there is a better place to
post this question, please let me know.
I am working with streaming audio over a Terminal Services connection in
Windows 2003 Server. However, the application we'd like to use will be used
in an audiological setting, so having lossless audio is of paramount
importance and there doesn't appear to be a way to configure the virtual
audio driver to use a lossless codec for transmission across the network.
My question, then is this: Is there a way to configure the virtual audio
driver for Terminal Services to use lossless compression? If not, to whom
would I speak in order to have this option implemented in a future version?
Thank you for your time in this matter. Tag: plug-in for Internet Connection Firewall Tag: 50254
How does NDISWAN work?
Hi,
does somebody know how NDISWAN makes decisions which WAN link is best for
sent packet?
MSDN says: "In an NDIS WAN environment, NDISWAN examines the header of the
descriptor of a send packet and determines over which link the packet will be
sent", but I would like to know what item of packet descriptor header is
crucial. Tag: plug-in for Internet Connection Firewall Tag: 50253
binplace integration to the build utility
Hello,
Is there a way to integrate the binplace utility to the build utility of
the ddk?
For example the WPP tool is integrated and to use it you need to add the
macro "RUN_WPP= $(SOURCES) -km" to the "source" file.
I could not find any documentation about it in the ddk or the Internet.
Nir Tag: plug-in for Internet Connection Firewall Tag: 50250
How to popup safe removal dialog of PNP device ?
Dears
Do you know if there is any function can popup safe removal dialog of
PNP device ?
Thanks a lot .. Tag: plug-in for Internet Connection Firewall Tag: 50246
DeviceIoControl return 998
hi,
I try to retrieve signal strength from NDISUIO driver.
the CreateFile returns OK on the name \\\\.\\{x-x-x-x}, but the
DeviceIoControl retrurn 998 (no access to file).
does anybody know why and how i should solve this problem.
I should mention i'm working on xp and therefore the line
"queryOID->ptcDeviceName = ptcDeviceName;" could not be performed,
because the queryOID->ptcDeviceName exists only on WIN CE.
Thanx,
d Tag: plug-in for Internet Connection Firewall Tag: 50245
Does anyone know of any help at all about how to write a
plug-in for MS Internet Connection Firewall?