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BdN3504

How do I use devcon to update drivers?

3 posts in this topic

I am trying to update the drivers for a USB Stick using devcon.

I copied devcon to C:\ and the drivers to C:\drivers.

I opened cmd and executed the following command, to ensure I have the appropriate rights:

runas /u:Administrator cmd

In the Administrator shell I executed the following command:

C:\>devcon.exe hwids USBSTOR\GenDisk

and got this output:

USBSTOR\DISK&VEN_INTENSO&PROD_PREMIUM&REV_0.00\09123100022036&0
Name: Intenso Premium USB Device
Hardware ID's:
USBSTOR\DiskIntenso_Premium_________0.00
USBSTOR\DiskIntenso_Premium_________
USBSTOR\DiskIntenso_
USBSTOR\Intenso_Premium_________0
Intenso_Premium_________0
USBSTOR\GenDisk
GenDisk
Compatible ID's:
USBSTOR\Disk
USBSTOR\RAW
1 matching device(s) found.

Then, I executed this command:

C:\>devcon.exe update C:\drivers\cfadisk.inf "USBSTOR\DISK&VEN_INTENSO&PROD_PREM

IUM&REV_0.00\09123100022036&0"

And got this output:

Updating drivers for USBSTOR\DISK&VEN_INTENSO&PROD_PREMIUM&REV_0.00\091231000220
36&0 from C:\drivers\cfadisk.inf.
devcon.exe failed.

I cannot make out what I am doing wrong. The behavior I am expecting is described here.

But as you can see, I only get the nondescript "devcon.exe failed" message.

Can you help me?

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Cfadisk.inf has to contain the HardwareID.

Edit cfadisk.inf first:

[cfadisk_device]
%Microdrive_devdesc% = cfadisk_install,USBSTOR\DiskIntenso_
%Microdrive_devdesc% = cfadisk_install,USBSTOR\GenDisk

run

devcon install  cfadisk.inf USBSTOR\DiskIntenso_

or

devcon install  cfadisk.inf USBSTOR\GenDisk

This is a generic approach:

cfadisk is connected to current attached USB storage devices

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Nice! Thanks man. I didn't know the HardwareID was DiskIntenso_, I thought it had to be String containing the Vendor ID etc, because that's what I put into the cfadisk.inf file.

This is weird, because I already tried GenDisk errrr but without the modifications in the inf file. That makes sense now. Thanks!

Edited by BdN3504
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