The Challenge

Our customer had developed a USB Ethernet chip. The customer had a Windows device driver for the device and wanted to develop a Windows CE driver for the same.

The Solution

Earlier GRACELABS team was involved in the performance improvement of the Windows 2000 driver for the same device and was familiar with the device/driver. Windows CE also uses NDIS architecture for Network drivers. However, the USB interface and driver loading interface are different for Windows CE. Hence the work involved implementing the driver loading/dll interface, modification of the driver to use the Windows CE USB driver interface and setting up the registry entries for building/installing the driver as part of the platform and creating the inf ( for generating cab file) file for installing the driver separately. Also, the “wsttcp” tool was ported onto Windows CE for performance testing of the driver.

The Technology

The technologies involved were USB, Ethernet, NDIS, and Windows CE.

The Result

The driver was delivered in time and the customer has started entrusting us with more drivers on Windows CE.