1:  I have installed CySuiteUSB_3_4_7_B204.exe,this is the path  c:\Cypress\Cypress Suite USB 3.4.7\Driver\bin\wlh\x64 .

I modified the. inf file vid/pid.but can't driver in Windows 8.

2:  this is the path  c:\Cypress\Cypress Suite USB 3.4.7\Driver\bin\wlh\x64 .  I modified the. inf file vid/pid.It can't driver in Windows 7 64bits system.  Late,I finded a cyusb.sys in other newwork,and use my modified .inf file. it work well.why?

 Cyusb.sys which is provided along with SuiteUSB 3.4.7 is not for Windows-8.

Please download " Cypress SuperSpeed USB Suite for Windows, v1.2.2" available in the link: http://www.cypress.com/?rID=57990 

The drivers available along with Superspeed suite are Cyusb3.sys. You can use this on Win-8.

Thanks

Nikhil

Hi NILK

I download " Cypress SuperSpeed USB Suite for Windows, v1.2.2" ,and modifyed the file"EZ-USB FX3 SDK\1.2\driver\bin\wlh\x64\cyusb3.inf",the VID_0301&PID_0060. but still it did not work.

 Please use Win7 x64 drivers for Win-8.

Thanks

Nikhil

Hi

Still it did not work.

 Can you please post a snap of the error message.

Thanks

Nikhil

I stop the digital signature and the driver work well.

and the window 7 driver work well in the window 8 system.

and my software work well to.

 Yes, driver signature needs to be disabled.

Thanks for posting the same here.