Any impact will be in terms of adding new header files to the application with the changed data structures. There will be little to no impact to the existing source. Add setupapi.lib in Additional DependenciesĪpplications that are using the Cypress Driver API directly:ĭriver API compatibility is maintained during this driver architecture change.
In addition to CyAPI.lib, you also need to add setupapi.lib (the Microsoft ® provided library) in Additional Dependencies before building the application.įigure 3. \.\lib\x86\cyapi.lib) in the Additional Dependencies edit box as shown in Figure 2.įig 2: Add the New Library Path in Additional Dependencies Add the lib path including the lib name (for example. 
Select the Input node under the Linker. Select the Linker node under Configuration Properties. For linking to the newer CyAPI.lib library:. For header file replacement, you can add the newer CyAPI.h header files to your project in place of old ones or provide the path to where the newer CyAPI.h header file is located. Add the New CyUSB.dll to the References Section of the Project.Ĭ++ applications need static library and header file replacement in the source code as shown below. First remove the old CyUSB.dll in your project’s References folder and add the newer CyUSB.dll in its place.įigure 1. There is an application migration task that can be done quickly and easily.Īpplications that are using the Cypress Library:Ĭ# applications need to use the newer C# dll. The existing FX2LP application (based on CyUSB.sys) needs to be migrated to the newer driver ( CyUSB3.sys) and its pairing library ( CyUSB.dll). Question: What changes are needed to make the older EZ-USB FX2LP PC host application compatible with the new CyUSB3.sys driver? Therefore, Cypress ® decided to retire the FX2LP (CyUSB) driver after Windows 7 and adopt a newer KMDF architecture through the CyUSB3 driver that has support from XP through Windows 8.1.ĬyUSB3.sys is a Microsoft certified driver for FX2LP devices from XP through Windows 8.1. 
The FX2 driver is no exception to this evolution and needs to be migrated to the newer architecture. Microsoft ® suggests migrating to Kernel-Mode Driver Framework (KMDF). Era 2000 Windows Driver Model (WDM) architecture is no longer the preferred architecture for the Windows Operating System. The FX2LP driver has evolved since the late ‘90s. Question: What is the status of the EZ-USB ® FX2LP™ Windows ® driver ( CyUSB.sys )?
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