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devcon install/update/remove fails even though installation through device manager is successful RRS feed

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    Hi,

    I need to create a batch file that install a 3rd party camera driver for PCI device. When I install the driver in device through device manager, I can do it successfully. However, when I try to the same, I get the message 'devcon failed' with no further elaboration. I provided following commands but none of them works.

    devcon install "C:\Program Files (x86)\Molecular Imaging\MI\Application\Drivers\pixci_win7x64\epixxcw6.inf"  "PCI\VEN_165A&DEV_EB01&CC_FF00"

    or after installing through device manager

    devcon update "C:\Program Files (x86)\Molecular Imaging\MI\Application\Drivers\pixci_win7x64\epixxcw6.inf"  "PCI\VEN_165A&DEV_EB01&CC_FF00"

    or

    devcon remove  "PCI\VEN_165A&DEV_EB01&CC_FF00"

    However 'devcon find "PCI\VEN_165A&DEV_EB01&CC_FF00" ' runs fine and return the message that 'one matching device found'.

    Similarly  'devcon dp_add "C:\Program Files (x86)\MolecularImaging\MI\Application\Drivers\pixci_win7x64\epixxcw6.inf" ' runs fine and the message I get in return is: c:\windows\system32\inf\oem151.inf addd.

    After that I also tried install/update with   'c:\windows\system32\inf\oem151.inf' driver but it still fails. 

    Is there any way, I could see the elaborated message about failure or I could know whats wrong with my execution of devcon.

    Thanks,

    Divya



    Wednesday, August 13, 2014 3:18 PM

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    Hi,

    I am afraid there seems to be no such function available for DevCon.exe to display the error messages here. In fact, The parameters in a DevCon command must appear in the order shown in the syntax. If parameters are not in order, DevCon ignores them, but does not display a syntax error. Instead, it processes the command with the remaining parameters.

    We can use the following commands  in a Command Prompt window: DevCon help or DevCon help command.

    To get the helpful information regarding the command syntax.

    More information, please see:

    Device Console (DevCon.exe) Commands

    Best regards

    Michael Shao
    TechNet Community Support



    • Edited by Michael_LS Thursday, August 14, 2014 10:20 AM
    • Marked as answer by Cloud_TS Tuesday, September 9, 2014 7:54 AM
    Thursday, August 14, 2014 10:19 AM

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    Hi,

    I am afraid there seems to be no such function available for DevCon.exe to display the error messages here. In fact, The parameters in a DevCon command must appear in the order shown in the syntax. If parameters are not in order, DevCon ignores them, but does not display a syntax error. Instead, it processes the command with the remaining parameters.

    We can use the following commands  in a Command Prompt window: DevCon help or DevCon help command.

    To get the helpful information regarding the command syntax.

    More information, please see:

    Device Console (DevCon.exe) Commands

    Best regards

    Michael Shao
    TechNet Community Support



    • Edited by Michael_LS Thursday, August 14, 2014 10:20 AM
    • Marked as answer by Cloud_TS Tuesday, September 9, 2014 7:54 AM
    Thursday, August 14, 2014 10:19 AM
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    Hi,

    Any updates?

    If any further assistance or information needed, please feel free to update here.

    Best regards

    Michael Shao
    TechNet Community Support

    Friday, August 22, 2014 2:39 AM
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    I had the same problem and I fixed it.  The issues, for me at least, was that the devcon find returns a string that is very specific to the instance of the device.  Something like HID\VEN_xxxx&DEV_xxxx&SUBSYS_xxxxxxxx&REV_xx&COLxx\x&xxxxxxx&x&xxxx which i'll refer to as LONG_HWID.  It does not look anything like what I have in my INF and if you I tried

    devcon update xx.inf "%LONG_HWID%"

    I got "devcon.exe fails."  Looking in %SYSROOT%\inf\setupapi.dev.log I saw that a match was not found in my inf.  My INF has HID\VEN_xxxx&DEV_xxxx&COLxx (SHORT_HWID).  If I ran

    devcon HwIds "%LONG_HWID%"

    you'll see the alternative hwids for that device.  One of them is SHORT_HWID.  So what did work for me was

    devcon update xx.inf "%SHORT_HWID%"

    Andrew

    Thursday, February 4, 2016 8:48 PM