Can not re-install cyusb.sys after modify .inf file

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Can not re-install cyusb.sys after modify .inf file

Anonymous
Not applicable
‎Jan 12, 2018 12:35 AM
‎Jan 12, 2018 12:35 AM
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I follow Cypress CyUsb3.sys Programmer's Reference  to change .inf file with no rename  CYUSB3.SYS.

1. Locate the [Strings] section at the bottom of the CYUSB3.INF file.

2. Change the quoted CYUSB3_Provider string.

3. Change the quoted CYUSB3_DisplayName string.

4. Change the quoted CYUSB3_Company string.

5. Change the quoted CYUSB3_Description string.

and I re-install this changed driver. but failed.

And I want to re-install the Initial driver, but  failed.

The software for this device has been blocked from starting because it is know to have problems with Windows.

Contact the hardware vendor for a new driver(code 48)

more information show as bellow.

How can I do?

pastedImage_4.png

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Re: Can not re-install cyusb.sys after modify .inf file

SrinathS_16
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1000 replies posted 750 replies posted 500 replies posted
In response to Anonymous
‎Feb 13, 2018 02:10 AM
‎Feb 13, 2018 02:10 AM
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Hello Javey Han,

The CYUSB.SYS driver has been retired and is no longer in use. Please use the CYUSB3.SYS driver, the latest version of which can be obtained from the below link.

http://www.cypress.com/file/322371

After installing the EZ-PD Protocol Analyzer from the above link, the driver can be found in the below path.

C:\Program Files (x86)\Cypress\CY4500 EZ-PD Protocol Analyzer\1.0\drivers\DriverBinary\Vendor_Driver\bin\<OS_Version>\<Architecture>

To modify the INF file that comes with the package, please refer to the Cypress CYUSB3.SYS Programmer's Reference (http://www.cypress.com/file/145261/download) and refer to Section 2: Modifying CYUSB3.INF file

As Andriy Yarema mentioned, changes to any of the files in the driver package (INF, SYS or DLL files) would delete the Microsoft signature. In case you are using Windows 8.1 or below, driver signing is mandatory and you can forcefully bind the device to the driver. For Windows 10 and above, driver has to be signed. For testing purposes, the OS can be put to TEST mode and the device can be bound to the driver.

Best regards,

Srinath S

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