TM4C1294KCPDT: USB driver: How to change ".cat" file after ".inf" file modification

Linda Zhang84708

Part Number: TM4C1294KCPDT

Hello Champs,

Customer has modified USB driver ".inf" file ([string] part), they need to know how to change previous ".cat" file correspondingly or how to generate new ".cat" file. Would you please kindly help? Thanks!

Best Regards,

Linda

over 5 years ago

0 Ralph Jacobi over 5 years ago

TI__Guru*** 135355 points

Hello Linda,

The .cat files are part of the driver signing process with Windows to ensure USB drivers are not modified. If the .inf files are modified, the customer needs to generate the .cat file themselves and then get those updated drivers signed by Windows.

See the following articles:

https://docs.microsoft.com/en-us/windows-hardware/drivers/install/using-inf2cat-to-create-a-catalog-file

https://docs.microsoft.com/en-us/windows-hardware/drivers/install/components-of-a-driver-package

0 Linda Zhang84708 over 5 years ago in reply to Ralph Jacobi

TI__Expert 6565 points

Hello Ralph,

They have successfully converted modified ".inf" file into new ".cat" file. But they found that when installing the new driver, it will still need signature.

But our USB driver provided in Tivaware does not need signature during installation.

Would you please kindly help how to configure to eliminate the signature in ".cat" file? Thanks!

Best Regards,

Linda

0 Ralph Jacobi over 5 years ago in reply to Linda Zhang84708

TI__Guru*** 135355 points

Hello Linda,

The signature part is Windows controlled, I have no idea how that would be done. Also disabling driver signing would prevent it from being installed on Win 10 for their end customers without a lot of loopholes being exploited.

The latest TivaWare USB drivers we provide are signed because they didn't work on Win 10, those drivers are provided as a Patch: http://software-dl.ti.com/tiva-c/SW-TM4C/latest/exports/SW-TM4C-2.1.4.178.PATCH-1.0.zip

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TM4C1294KCPDT: USB driver: How to change ".cat" file after ".inf" file modification