errors in the driver

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I'm trying to install a driver which i wrote ,but during installation, the install failed errors always incurred, i debugged and found out that this function is where the errors showed.
here is the code :

if (!UpdateDriverForPlugAndPlayDevices(0, // No Window Handle
                                           m_hwid, // Hardware ID
                                           m_infname, //  inf FileName
                                           INSTALLFLAG_FORCE, 
                                           &RebootRequired)) 
    {
 
        MessageBox(m_ids3);
        CDialog::OnCancel();
        return; // Install Failure
}

i wondered what caused this problem,anyone where can help,please give me a direction,thanks.for me , i thought maybe the inf file have errors ,so tha driver can be installed on thec omputer .the computer is 64bits .

Posted 22-May-11 22:35pm

markfilan

Updated 23-May-11 4:37am

Stefan_Lang

v2

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ShilpiP · Answer 1 · 2011-05-22T22:41:00

Solution 1

Use GetLastError() to check the error message.
->[^]

1) Is m_hWnd is LPCSTR type?
2) Is m_infname is the full path of file name?

Posted 22-May-11 22:41pm

ShilpiP

Comments

Stefan_Lang 23-May-11 10:38am

My 5. GetLastError() is exactly what MSDN recommends:
http://msdn.microsoft.com/en-us/library/ff553534%28v=vs.85%29.aspx

ShilpiP 24-May-11 1:07am

Thanks Stefan :)

markfilan 23-May-11 23:53pm

the erroe code i got is the operation complete successfully........so where is the problem .because i used getlasterror in the if{}function .so it;s obvious that the function didn't do what i wanted to .

ShilpiP 24-May-11 1:09am

I asked you two more questions. Is m_hWnd is string type and Is m_infname is full path of file name ??

Stefan_Lang 24-May-11 5:12am

Now this is odd, if the call to update returned false, then you can't get 'OK' on GetLastError(). I've checked and found there may be a problem with that function, see the first comment on this site: http://msdn.microsoft.com/en-us/library/ms679360%28v=vs.85%29.aspx

If you have VS2008, put a breakpoint behind your call to GetLastError() and check the result again.

markfilan 24-May-11 2:11am

yes，it is CString type .and m_infname is the full path of the file name.

markfilan 24-May-11 2:15am

and the value is:
m_hwid = _T("USB\\Vid_1267&Pid_6523");

ShilpiP 24-May-11 3:03am

I missed the line that OS is 64 bit.
Question:
1) Did you execute your Visual Studio IDE using Visual Studio <****> (**** means 2005, 2008, 2010) x64 Cross Tools Command Prompt.
2) Did you change the configuration to x64 for 64 bit OS using configuration manager.
Check this link ->
http://msdn.microsoft.com/en-us/library/ff541255%28v=vs.85%29.aspx

markfilan 24-May-11 4:57am

i may not say that very clear ,the drier installation is 32bits,but now i tried to make it can work on 64bits computer ,so i recompile the installation .but if faild. i don't know where is th problem. i read the code ,the installtion did such thing:
1, copy the inf to the system directory.
2. copy the driver to the repective direcory.
3 use the inf install the driver.
i don;'t know where i missed...........

ShilpiP 24-May-11 5:52am

Your points are not clear to me. If these files are in a same directory than also It will work properly. No need to copy files in a different directory.
Check the [Manufacturer] of .inf file. Is it compatible to 64 bit OS??

markfilan 25-May-11 4:46am

I looked the description of the function again,I know why，thanks for help. the function return true ,only when the driver you r installing is newer than the one in the OS.but what i wanted to install is the same ,i think that is why i constantly got false .is that right?

ShilpiP 25-May-11 4:58am

No you are using "INSTALLFLAG_FORCE". It means you are are forcefully install the driver even if the latest version is already install. try to check error using GetLastError when your function return false.
if(!UpdateDriverForPlugAndPlayDevices(NULL,lpszHardwareId,lpszInfFile,INSTALLFLAG_FORCE,&bReboot))
{
DWORD dwErrCode = GetLastError();

}
Check the value of dwErrCode.

markfilan 24-May-11 21:11pm

is that [Manufacturer] on 32bits computer is different from 64bits,i will check.but ow i found out that it's becaus the step whic i copy driver to system directory id denied .when i copy driver to system diractory i got the "access denied "error .is that win7 64bits have some restrictions on the access of system directory.

Stefan_Lang · Answer 2 · 2011-05-23T04:42:00

Solution 2

As SP 24 suggested, you should check the error code using GetLastError(). Judging by what you said it could be ERROR_IN_WOW64. See the MSDN documentation on UpdateDriverForPlugAndPlayDevices

ERROR_IN_WOW64: The calling application is a 32-bit application attempting to execute in a 64-bit environment, which is not allowed.

If this is it, make sure your installer is being built as a 64 bit application.

Posted 23-May-11 4:42am

Stefan_Lang

Updated 23-May-11 4:45am

v2

Comments

markfilan 23-May-11 20:48pm

But I already compiled the project on the 64bitd computer and the driver,so the installer should can be used on 64bits computer .

Stefan_Lang 24-May-11 4:12am

That is not the point. You can compile and build and run a project as 32 bit, even on a 64 bit machine. If you want 64 bit code you have to make sure your project settings are set accordingly. What you can not do is call functions from 64 bit system libraries from a 32 bit application, and that may be your problem, if indeed you do get the error code mentioned above. Did you check?

markfilan 24-May-11 21:03pm

i flash back and found out that when the code try to copy driver to to system directory,it got the "access denied"error.

markfilan 23-May-11 23:50pm

it's strange tha error i got is :the operation completed successfully..........so this fuction worked well.so where is the problem ?please help.

Stefan_Lang 24-May-11 4:14am

I don't get that - above you said you get an error. Did you call GetLastError()? And what did it return?

markfilan 25-May-11 3:02am

yes ,i called getlasterror .the function return :no more availabke value...........so whatg could be the problem?help.........please .

Stefan_Lang 25-May-11 4:03am

Maybe I wasn't clear. I checked your answers in both solutions and you mention various 'errors' that you get, but on each occasion that error is different, and in each case you give some error text, which I take to be your personal interpretation.

Again: what is the exact error code that you get from GetLastError()? It can only be one of these: ERROR_FILE_NOT_FOUND, ERROR_IN_WOW64, ERROR_INVALID_FLAGS, ERROR_NO_SUCH_DEVINST, or ERROR_NO_MORE_ITEMS

To check which it is, insert some code like that in your if-block:
DWORD error_code = GetLastError();
switch (error_code) {
case ERROR_FILE_NOT_FOUND:
cout << "ERROR_FILE_NOT_FOUND";
break;
// etc., same for the other codes
// ...
default:
cout << "unknown code: " << error_code;
}

P.S.: remember to call GetLastError as your first command in the if block to make sure it doesn't get overwritten by something else. Also do not step through your code. Just set a breakpoint at or after the switch block above.

markfilan 26-May-11 22:42pm

thanks I used the way you told me ,and found out that the error actually is：ERROR_NO_MORE_ITEMS.i will check where is the problem.really very appreciate your time and help.

ShilpiP 24-May-11 2:57am

+5, I missed the line of 64 bit OS. :)

markfilan 25-May-11 4:46am

I looked the description of the function again,I know why，thanks for help. the function return true ,only when the driver you r installing is newer than the one in the OS.but what i wanted to install is the same ,i think that is why i constantly got false .is that right?

Stefan_Lang 25-May-11 5:15am

In that case GetLastError() should return ERROR_NO_MORE_ITEMS, the meaning of which is:

The function found a match for the HardwareId value, but the specified driver was not a better match than the current driver and the caller did not specify the INSTALLFLAG_FORCE flag.

This is still odd though, as you actually *did* specify INSTALLFLAG_FORCE, and thus the driver should have been installed...

markfilan 25-May-11 20:43pm

yes ,it's strange,i tried this installation on xp,which worked perfectly.is that because my driver did't have the signature which 64bits OS required for caused this problem.?