Urgent help needed>> please tell us what menu.lst do we need for usbhid application

Hi ALL, We are student of IIT Delhi. We are trying to build a usb webcam application and ext2 file system driver on L4. We have seen an *application USBHID directory* under L4/pkg downloaded from svn . Could anybody let us know how to use this application. Please also let us know the required menu.lst file to use this application . 1) Please also describe required menu.lst file to use dde, dde_linux26, dope, drop,loader together . 2) Could any body tell us what is the difference between dde and dde_linux26 application found in svn ? 3) Please also tell us how to use these to build an usb device driver. Thanks & Regards, TAPAS KUMAR KUNDU