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Hi!
I had download the source code of mass storage device driver for windows98 from Microsoft websit.And builded it with 98ddk on windows98 system,and then
installed it on win98 system. It can work correctly all the time.
If I suddenly remove the device from pc when copying file from pc to device or from device to pc on win98 system,the blue screen occur,and i have to restart my system.
But if do the same on win2000 or winxp there is no blue screen.
Now i wanna modify the driver source code to avoid the blue screen when suddently remove the device while it is exchanging data with pc on win98 system.
My question is:
1,If my hope has the possibility to come true?
2,If has,then which part of source code of this drive should i have to modify,and what couses the blue screen?
I know that in the source code it just abort all the pipes when device remove sudently but nothing else.
Thanks!
momer
All the blesses we are enjoy are the fruit of labor,toil,study and self-denail.
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I believe Win98 cannot detect automatically when the device is removed the use has to tell it via the system tray.
Automatic detection was one of the additions to Win2k which is, of course, a different driver model.
Elaine ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
The tigress is here 
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Hi!Elaine,
Yeah,I agree with you!
Thank you very much!
momer
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Yeah,I agree with you.
Thank you very much!
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If you want to find what part of your coder BSODed the PC, run a debug version, and after the crash, get the DMP file form the windows directory, and analyse it with DbgView.exe.
You need to set the paths of the source code files and the path to the pdb files.
Nunc est bibendum
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Hi! fat_boy,
Thank you very much!I will have a try.
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last night my hard drive crashed on my home pc. 
it's a Seagate Barracuda IV ATA100 hard drive. I'm looking for a replacement as we speak and was thinking about upgrading to a 200GB ATA133 model that I've found on newegg, but I'm not sure if it will be compatible being that it's ATA133 vs. ATA100. I wouldn't think so being that both are Ultra IDE, but I'm not sure.
As you can probably tell I'm not a hardware whiz, so I figured I'd ask. A friend also suggested maybe going with a 200GB Serial ATA model with a pci adapter (my pc only supports ide), but will the potential benefits of the faster Serial/ATA interface be cut off by the pci bus? does anyone have any experience with this?
Also, on a related note, I have some data on this crashed out drive that I'd like to try to retrieve (pics, docs etc.). Are there any tools (prefereably free) that anyone knows of that can help out with this? I don't think the drive is completely fried, but it won't boot. I'm going to try setting up a new boot drive tonight and slave this one to see if I can access anything. Does anyone have any other suggestions or ideas?
any help is appreciated.
-jim
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Jim Matthews wrote: it's a Seagate Barracuda IV ATA100 hard drive. I'm looking for a replacement as we speak and was thinking about upgrading to a 200GB ATA133 model that I've found on newegg, but I'm not sure if it will be compatible being that it's ATA133 vs. ATA100. I wouldn't think so being that both are Ultra IDE, but I'm not sure.
all pata drives are compatable. The interface gracefully downgrades on either end.
Jim Matthews wrote: As you can probably tell I'm not a hardware whiz, so I figured I'd ask. A friend also suggested maybe going with a 200GB Serial ATA model with a pci adapter (my pc only supports ide), but will the potential benefits of the faster Serial/ATA interface be cut off by the pci bus? does anyone have any experience with this?
You might loose a bit off peak xfer speeds, and suffer a minor latancy hit, but the PCI bus is wide enough to support two 7200 rpm drives at max sustained xfer rate, so unless you've got something bandwidth intensive on the bus, I wouldn't worry about it.
At the same time, sustained 7200rpm drive is only ata66, so you won't see much of a gain from pata100 to sata150, the size of the onboard cache'll make a bigger difference. I wouldn't worry much about futureproofing your drive with a new mobo. optical drives are still almost exclusively pata, and from what I've heard the handful of sata ones in existance perform poorly. a new mobo purchase in the next few years shouldn;t be an issue. Afterall, USB's been ubiquitus on new pcs for 5+ years and we're only just starting to see some new mobos shedding legacy io ports.
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thanks dan! 
-jim
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finally got one for home. after getting a laptop, I'm fed up with usbflash driving my
code/release .exe back and forth from desktop to laptop...
So I got a wireless router.
I can hear the groans already...
My desktop's all plugged in and fine.
But my laptop can't find the wireless network 
I've moved it close, but when I go thru the network wizard,
it gives me somethin about "this may not work" and doesn't
let me go any further.
I'll be lookin up the KB article it mentions, but that's at home
The laptop hasn't been windowsupdated yet.
It's new tho (dell as of October) and i THOUGHT it'd be fine.
I tried pluggin the cable modem right into it and it still said
"somethin was missin".
Sighhhhhhhhh... So close yet so far away...
If you happen to know of anything off the cuff, I'd REALLY appreciate
the help...
...Steve
-- modified at 12:13 Tuesday 14th February, 2006
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I do not remember to terminology precisely, but on my laptop (not available to look at right now) in the network conections, I found a bridge connection that had to be enabled or disabled to allow the wireless connection to work properly.
The fact that you can not plug the network cable directly into the laptop implies something other than the wireless connection, have you ever been able to access the internet from your laptop?
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thanks for the help.
haven't got the laptop on the internet by itself yet.
i tried the dang cd that came with comcast but it
asked for a subscriber and order# or somethin.
and my wife and daughter are freakin at the moment so
i doubt i'll have time to play with it till MAYBE the
weekend... sigh...
probably once it's windowsupdated, i'll be able to
get it net'd.
Thanks
...Steve
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please suggest me which site or book should i refer to understand mobile internal hardware, i m s/w engineer and wants to do project on mobile security system .
ritparn
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Hi everybody!
I want to buy a laptop within semptember. This is that i need:
1GB ram
strong cpu
wireless and bluetooh integrated
graphic card not important
large hd (120,160GB)
Anyone know any laptop with these features?
And, at first, how much it cost???
Thank you
enrico
VentoEngine corp.
Program your life ^^
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ventomito wrote: Anyone know any laptop with these features?
And, at first, how much it cost???
Most laptops will support everything you mentioned except blue-tooth, that limits the list somewhat....
However, what do you consider a "strong CPU?"
Do you want Dual Core? (AMD dual core laptops are available from one or two sources, though not sure of bluetooth integration -- the dual core Centrino architecture was just announced recently and new laptops are expected soon, google for "Centrino Duo")
or do you want a strong single core? do you prefer a strong instruction cache with an intelligent pre-fetch (centrino) or just a brute force faster CPU? (efficient use of speed or just speed)
Certainly if the graphics is not important, the Centrino makes a very good laptop (and even some of the Centrinos drop the Intel graphics and add 3rd party graphics). And the top of the line Pentium M processor is still decent at 2.13ghz, the intelligent pre-fetch makes it seem much faster. The new Duo has some interesting characteristics that make it intriguing beyond any other dual-core chip, I don't know yet if that is good or bad.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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I was watching for the new sony vaio dual core.
I need a good cpu to use visual studio as fast as possible...
I dont wanna become old waiting the compilation 
VentoEngine corp.
Program your life ^^
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ventomito wrote: I need a good cpu to use visual studio as fast as possible...
I dont wanna become old waiting the compilation
Actually get one of the 100gig 7200rpm drives. Compilation is multiple issues, disk to memory, memory to CPU and CPU crunch, and back to disk. I don't have a copy of 2005, but I don't believe any of the previous versions supported a multi-core compile, so the physical CPU will only be one-core for compilation. As others have mentioned, you will still see a small improvement because the other threads for OS activities and overhead might be taking 2 to 5% of the CPU and those move to the 2nd core to let the compile take the whole thing.
If you go dual core, don't downgrade your CPU speed rating thinking two cores will make up for it.
This is my favorite thing to do if someone is looking to improve or not loose speed on compile.
run perfmon in windows
make sure the following counters are active:
Pages/sec (memory)
% Processor Time (Processor)
Disk Bytes/sec (Logical drive -- on the drive you are compiling under.
Make sure the colors are set so you can see the difference, leave it running in a corner of your screen and do a build-all.
You will then see the lines go mad. When the processor line spikes high you are using your CPU hard, if it peeks at 100% you are bound by the speed at that point. If memory spikes, you know you are using your memory hard, that height is adaptive, so you can never tell if you are memory bound, but you can infer that you are if the memory spikes at the same time the processor drops. And when the disk readings spike you know you are using your hard-drives hard.
The combination of those three activities is what makes for your choice in machine. If the drive rarely spikes, then you can down grade the disk speed with minimal affect, if memory rarely spikes, then you can down grade the memory with minimal affect.
But that test will show you just how much of your Memory/CPU/Disk combo you are abusing. I abuse them every day.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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thank you for the suggestions^^
VentoEngine corp.
Program your life ^^
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After a year of hardcore development in Visual Studio 2003 (C++), I can recommend something like: AMD64 (I'm runnning a 3400+), as much RAM as you can afford/fit in(1GB for me), 7200 rpm hard-drive...
I've found that to be around 20-30% faster for builds than a roughly equivalent 3GHz Pentium 4 setup (1GB RAM, 7200 rpm drive) we also have.
Also, a high reolution screen is nice (I've got 1400x1050)
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Hi,
I need to write a program that controls a camera get the data
But to do that we need to call some system dll's. (This is because the camera connects to the computer through the USB port .
any one can help
AMR-CIS
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you'll get a reply if you ask this in VB/VB.net forum.
VuNic
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This sample shows how to be notified of a device being plugged in or removed from the system. It uses the WMI's Win32_DeviceChangeEvent class. The class is only available in Windows XP or 2003. Add a reference to system.management for this example.
--------------------------------------------------------------------------------
Dim WithEvents w As ManagementEventWatcher
Dim q As WqlEventQuery
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
q = New WqlEventQuery("Select * from Win32_DeviceChangeEvent")
w = New ManagementEventWatcher(q)
w.Start()
End Sub
Private Sub w_EventArrived(ByVal sender As Object, ByVal e As System.Management.EventArrivedEventArgs) Handles w.EventArrived
MessageBox.Show("Device Event", e.Context.ToString)
End Sub
Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
w.Stop()
End Sub
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Hi! I wonder if someone can help me with writing a simple application that can work with a fingerprint scanner and saves the result image in tiff format? I tried to use methods like for usual scanners, but with no luck (((
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I dont think the scanners submit pictures to your computer. AFAIK they only transmit a "unique ID" generated from your fingerprints unique features.
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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Well, the most secure scanners actually don't submit any pictures, but the non-secure ones (like MS Digital Persona) do (and they even show theese pictures on the screen).
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