WDF Driver Generic Architecture

• IOCTLs are used to execute commands that the Application needs. Driver implements a list of IOCTLs in a huge switch statement.
• WdfRequestRetrieveInputBuffer is used to get handle to the input buffer from the driver source code
• WdfRequestRetrieveOutputBuffer is used to get handle to output buffer from driver src. Driver places results of operation into the output buffer.
• DeviceIoControl is invoked by the interface library.
• After the call to DeviceIoControl, the output buffer is retrieved and returned to the application.